NEWS6 # From Date Subject 1 16-SEP-1991 Magellan CDROMS 2 16-SEP-1991 Anti-Greenhouse Effect Discovered on Titan 3 16-SEP-1991 Magellan Update - 09/06/91 4 16-SEP-1991 Galileo Update - 09/09/91 5 16-SEP-1991 Magellan Update - 09/09/91 6 16-SEP-1991 Magellan Update - 09/10/91 7 16-SEP-1991 Galileo Update - 09/10/91 8 16-SEP-1991 Magellan Discoveries (article) 9 16-SEP-1991 Magellan Update - 09/11/91 10 16-SEP-1991 Galileo Update - 09/11/91 11 16-SEP-1991 Galileo Update - 09/12/91 12 16-SEP-1991 Magellan Update - 09/12/91 13 16-SEP-1991 Ulysses Update - 09/13/91 14 16-SEP-1991 Galileo Update - 09/13/91 15 16-SEP-1991 Magellan Update - 09/13/91 16 16-SEP-1991 Magellan Update - 09/16/91 17 16-SEP-1991 Re: Is Venus landslide recanted? 18 17-SEP-1991 Galileo Update - 09/16/91 19 17-SEP-1991 HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL... 20 17-SEP-1991 Test Message 21 17-SEP-1991 HQ 91-148/NEW OFFICE ANNOUNCED 22 17-SEP-1991 NEWS RELEASE/KSC LANDINGS 23 17-SEP-1991 MCC STATUS 10 & 11 24 17-SEP-1991 MISSION CONTROL STATUS REPORT #12 25 18-SEP-1991 HQ91-149/J.R. THOMPSON RESIGNSdadi 26 18-SEP-1991 Mission Control Status - Pre Entry 27 18-SEP-1991 Galileo Update - 09/17/91 28 18-SEP-1991 Magellan Update - 09/17/91 29 18-SEP-1991 Ulysses Update - 09/16/91 30 23-SEP-1991 Ulysses Update - 09/18/91 31 23-SEP-1991 Magellan Update - 09/18/91 32 23-SEP-1991 Galileo Update - 09/18/91 33 23-SEP-1991 Galileo Update #2 - 09/19/91 34 23-SEP-1991 Galileo Update - 09/19/91 35 23-SEP-1991 Magellan Update - 09/19/91 36 23-SEP-1991 Galileo Update - 09/20/91 37 23-SEP-1991 Magellan Update - 09/20/91 38 24-SEP-1991 Postage Stamp Ceremony at JPL 39 24-SEP-1991 Galileo Update - 09/23/91 40 24-SEP-1991 New Mars Mini-Rover Successfully Tested 41 24-SEP-1991 Galileo Update - 09/24/91 42 24-SEP-1991 Magellan Update - 09/24/91 43 24-SEP-1991 HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES 44 25-SEP-1991 Galileo Update - 09/25/91 45 25-SEP-1991 Magellan Update - 09/25/91 46 25-SEP-1991 Ulysses Update - 09/23/91 47 25-SEP-1991 Galileo Update #2 - 09/25/91 48 27-SEP-1991 Ulysses Update - 09/26/91 49 27-SEP-1991 Galileo Update - 09/26/91 50 27-SEP-1991 Magellan Update #2 - 09/26/91 51 27-SEP-1991 Galileo Detects Lightning on Venus 52 27-SEP-1991 Magellan Update - 09/26/91 53 27-SEP-1991 New Magellan Images Released 54 27-SEP-1991 Galileo Update - 09/27/91 55 27-SEP-1991 Magellan Update - 09/27/91 56 27-SEP-1991 Galileo Update #2 - 09/27/91 57 27-SEP-1991 HQ 91-155/UARS RESULTS 58 27-SEP-1991 HQ 91-154/TSS PAYLOAD SPECIALIST 59 27-SEP-1991 HQ 91-156/VENUS LIGHTNING 60 27-SEP-1991 HQ N91-67/NEW MAGELLAN PHOTOS 61 27-SEP-1991 HQ 91-157/MINORITY AWARDS 62 27-SEP-1991 Position Announcement - Chair, Physics Department 63 27-SEP-1991 Re: New Mars Mini-Rover Successfully Tested 64 30-SEP-1991 More Magellan GIF Images 65 30-SEP-1991 Galileo Update - 09/30/91 66 30-SEP-1991 HQ 91-158/TRULY BUDGET STATEMENT 67 30-SEP-1991 HQ N91-68/Image of Sun 68 30-SEP-1991 Daily News in Brief 9/30/91 69 3-OCT-1991 Yet More Magellan Images 70 3-OCT-1991 Galileo Update - 10/01/91 71 3-OCT-1991 Magellan Update - 10/01/91 72 3-OCT-1991 Magellan Update - 09/30/91 73 3-OCT-1991 Galileo Update - 10/02/91 74 3-OCT-1991 Magellan Update - 10/02/91 75 3-OCT-1991 Hubble Space Telescope Monthly Status Report 76 3-OCT-1991 Magellan Update - 10/03/91 77 3-OCT-1991 Galileo Update - 10/03/91 78 3-OCT-1991 Galileo Update #2 - 10/03/91 79 3-OCT-1991 Daily News in Brief 10/1/91 80 3-OCT-1991 HQ 91-161/Key Appointments (resent) 81 3-OCT-1991 HQ 91-159/X-29 RESEARCH 82 3-OCT-1991 Compton GRO Monthly Status Report 83 4-OCT-1991 Ulysses Update - 10/04/91 84 4-OCT-1991 Ulysses Update - 09/30/91 85 4-OCT-1991 Galileo Update - 10/04/91 86 4-OCT-1991 HQ 91-163/LIFE SCIENCES 87 4-OCT-1991 Magellan Update - 10/04/91 From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:24:50.95 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan CDROMS Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:24:12.41 Date: Mon, 16 Sep 1991 15:20:33 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152033.2d400307@MIPL5.JPL.NASA.GOV> Subject: Magellan CDROMS To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.general:40 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan CDROMS Date: 12 SEP 91 21:40:05 Message-ID:<1991Sep12.213653.1990@elroy.jpl.nasa.gov> ====================== Magellan CD-ROMS September 12, 1991 ====================== Five new Magellan CD-ROMs can now be obtained from the National Space Science Data Center (NSSDC) at the Goddard Space Flight Center. These five along with the CD-ROM released earlier this year bring the Magellan CD-ROM total to 6. The "nominal" charge is $20 for the first CD-ROM, and $6 for any additional disks in an order. However, NSSDC waives this charge for bona fide research users, teachers who indicate that they would be unable to use the material if they were required to pay, government laboratories, etc. Researchers funded by NASA's Solar System Exploration Division can also obtain the disks through the Planetary Data System at JPL. NSSDC also provides the following software to display the images: o IMDISP (IBM PC) o Browser (Macintosh) o Pixel Pusher (Macintosh) o True Color (Macintosh) NSSDC's address is: National Space Science Date Center Goddard Space Flight Center Greenbelt, Maryland 20771 Tel: (301) 286-6695 Email address: request@nssdca.gsfc.nasa.gov You can also reach NSSDC by logging on to their computer. To log onto the NSSDC computer, telnet to NSSDC.GSFC.NASA.GOV [128.183.36.25] and give the username "NSSDC". You will then be connected to a menu system which allows you to use the "Master Directory". You can also leave questions and orders for the NSSDC staff. If this is the first time you have used the NSSDC "NODIS" system, it will ask you for information (name, address, ...) to keep a database of NSSDC users. Peter Yee at the Ames Research Center will also be making the new Magellan CD-ROMs available via anonymous ftp at AMES.ARC.NASA.GOV [128.102.18.3]. The Ames site has two CD-ROM drives and they are accessible through the pub/SPACE/CDROM and pub/SPACE/CDROM2 directories. The CD-ROMs will be rotated on a weekly basis. The Magellan project is continuing to produce CD-ROMs at the rate of 8 per month. The current 5 CD-ROMs cover the first 21 days of mapping, or roughly 1/10 of the planet. In October, the project will release disks through the first 4 months, or roughly 1/2 the planet. The full planet will be available by February in a set of about 50 disks. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:25:29.83 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Anti-Greenhouse Effect Discovered on Titan Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:24:56.07 Date: Mon, 16 Sep 1991 15:21:20 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152120.2d40030a@MIPL5.JPL.NASA.GOV> Subject: Anti-Greenhouse Effect Discovered on Titan To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:153 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Anti-Greenhouse Effect Discovered on Titan Date: 6 SEP 91 20:41:41 Message-ID:<1991Sep6.203848.6865@elroy.jpl.nasa.gov> Paula Cleggett-Haleim Headquarters, Washington, D.C. September 6, 1991 (Phone: 202/453-1547) Diane Stanley Ames Research Center, Mountain View, Calif. (Phone: 415/604-9000) RELEASE: 91-143 SCIENTISTS DISCOVER ANTI-GREENHOUSE EFFECT ON TITAN An anti-greenhouse effect on a solar system body has been described for the first time by scientists from NASA's Ames Research Center, Mountain View, Calif., and the Paris Observatory. Drs. Christopher McKay and James Pollack of Ames, with France's Dr. Regis Courtin, also describe the temperature structure and energy balance on Titan, Saturn's largest moon. Using data from the Voyager 1 spacecraft and computational models, the scientists determined the source, or controls, of the temperature profile. Their results are in the current issue of Science magazine. They say the temperature model of the organically-rich, thick atmosphere on Titan may help in basic studies of the greenhouse effect on Earth. Their study provides the first description of a greenhouse and anti- greenhouse effect existing simultaneously, in tension with each other. Greenhouse effects on Venus and Earth have been discussed extensively. The study results define an anti-greenhouse effect that reduces Titan's surface temperature by 16 degrees Fahrenheit. The effect is produced by a thick, organic haze in Titan's upper atmosphere that absorbs solar light, but transmits reflected infrared radiation. Titan's greenhouse effect, they report, increases the surface temperature by 38 degrees Fahrenheit. The effect is caused by atmospheric gases reflecting infrared energy back to Titan's surface. The surface temperature of Titan, minus 290 degrees Fahrenheit, therefore is 22 degrees warmer than it would be without atmospheric effects. Between the size of Earth's moon and Mars, Titan is the only satellite in the solar system with a thick atmosphere. It's atmospheric pressure is similar to Earth's - only one and one half times greater - and it has the same primary atmospheric ingredient - nitrogen. Also, the major greenhouse gas on each body (water on Earth and methane on Titan) condenses on its surface. Titan's greenhouse effect depends on a link between hydrogen and methane, like the Earth's greenhouse effect depends on carbon dioxide and water vapor, says McKay. As humans increase carbon dioxide on Earth and it gets warmer, more water goes into the atmosphere. Water vapor on Earth is a more potent greenhouse gas than carbon dioxide, McKay said. Similarly, on Titan, hydrogen acts like carbon dioxide, he said. It does not condense. If you increase it, it will pull the methane out of suspected methane-rich oceans or lakes. On Titan, the condensed surface liquid, methane (like water on Earth) then becomes the most potent greenhouse gas. McKay, Pollack and Courtin were modelling the greenhouse effect on Titan when they realized that they needed a counterpoint. They then isolated the temperature dynamic of the upper atmospheric haze. Earth has no comparable mechanism. However, stratospheric ozone acts, in a small way, as a highly selective anti-greenhouse shield. It absorbs only a specific region of solar light, ultraviolet, and lets infrared radiation pass through on its way out. Debris from volcanic explosions or extraterrestrial impacts also temporarily scatters solar light and acts as an anti-greenhouse agent. But the gases (mostly sulfur dioxide) eventually produced by these events are greenhouse agents, letting in solar light and reflecting infrared radiation back to space. As carbon dioxide and water vapor increase in the Earth's atmosphere, more clouds will form. Scientists want to know how they will warm or cool the planet. Just as Titan's greenhouse/anti-greenhouse effect is a good comparison model for Earth, studying the formation of clouds on Titan and their effect on the greenhouse balance may help answer these questions, McKay suggested. - end - ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:26:01.83 To: deen@utd750.utdallas.edu CC: Subj: Magellan Update - 09/06/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:25:18.43 Date: Mon, 16 Sep 1991 15:21:41 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152141.2d40030b@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/06/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:154 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/06/91 Date: 6 SEP 91 20:35:47 Message-ID:<1991Sep6.203232.6705@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 6, 1991 Magellan spacecraft performance continues to be excellent. Only one star was missed during yesterday's starcals (star calibrations). All spacecraft temperatures have stabilized in the acceptable range. The transmitter peaks at 48 degrees C and the DMS-B (Data Management Subsystem) tape recorder head reaches 32.9 degrees C. Yesterday, spacecraft controllers sent up the M1249 command sequence with its associated radar control parameter and mapping quaternion files. The new 2-week command sequence will continue the two 20 minute cooling periods in each orbit, shortening the radar mapping swaths to about 65% of their normal length. Mapping begins at about 5 degrees north latitude and extends to the South Pole. One of the principal features being imaged right looking is Artemis Chasma in the south central part of Aphrodite. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:26:46.73 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/09/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:25:41.54 Date: Mon, 16 Sep 1991 15:22:04 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152204.2d40030e@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/09/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:155 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/09/91 Date: 9 SEP 91 18:32:43 Message-ID:<1991Sep9.182932.3954@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 9, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. On Saturday, September 7, the DMSMRO (Data Management Subsystem Memory Readout) activity to return the optical navigation image was initiated. Today, another of the periodically planned RPM (Retro Propulsion Module) 10-Newton thruster maintenance activity is scheduled. Additionally, the command loss timer will be reset. Tomorrow, continued DMSMRO of the optical navigation image is scheduled and additional MROs are scheduled for the DDS (Dust Detector), MAG (Magnetometer), and EUV (Extreme Ultraviolet Spectrometer) instruments. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:27:18.91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/09/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:26:15.30 Date: Mon, 16 Sep 1991 15:22:31 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152231.2d400310@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/09/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:156 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/09/91 Date: 9 SEP 91 23:28:16 Message-ID:<1991Sep9.232502.11563@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 9, 1991 Magellan spacecraft performance continues to be excellent. Two stars were missed during the first orbits of the new sequence on Friday during the day which was caused by the several changes in the new sequence including new star pairs. All spacecraft temperatures have stabilized in the acceptable range. The transmitter peaks at 48 degrees C and the DMS-B (Data Management Subsystem-B) tape recorder head reaches 32.9 degrees C. Today, spacecraft controllers will send up a new Radar Control Parameter File. The on-board command sequence will continue the two 20-minute cooling periods in each orbit, shortening the radar mapping swaths to about 65% of their normal length. Mapping begins at about 5 degrees north latitude and extends to the South Pole. The spacecraft continues to image right looking Artemis Chasma which is in the south central part of Aphrodite. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:27:47.26 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/10/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:26:59.36 Date: Mon, 16 Sep 1991 15:22:54 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152254.2d400312@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/10/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:157 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/10/91 Date: 10 SEP 91 20:58:03 Message-ID:<1991Sep10.205448.10722@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 10, 1991 Magellan spacecraft performance continues to be excellent. All STARCALS (star calibrations) were successful. All spacecraft temperatures are holding in the acceptable range. The transmitter peaks at 48 degrees C and the DMS-B (Data Management Subsystem-B) tape recorder head reaches 34 degrees C. Today, spacecraft controllers will send up a commands to change the contents of the Delayed Engineering Data telemetry. The on-board command sequence will continue the two 20-minute cooling periods in each orbit, shortening the radar mapping swaths to about 65% of their normal length. Mapping begins at about 5 degrees north latitude and extends to the South Pole. The spacecraft continues to image right looking Artemis Chasma which is in the south central part of Aphrodite. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:29:06.43 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/10/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:28:44.19 Date: Mon, 16 Sep 1991 15:23:15 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916152315.2d400314@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/10/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:158 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/10/91 Date: 10 SEP 91 23:58:23 Message-ID:<1991Sep10.235508.16208@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 10, 1991 The Galileo spacecraft is operating normally in the all-spin mode and transmitting coded telemetry at 40 bps. Yesterday, the spacecraft completed another 10-Newton thruster "flushing" maintenance activity and continued the DMS (Data Management Subsystem) MRO (Memory Readout) playback activity of the first GASPRA-related optical navigation image. Today, the DMS MRO playback activity will continue and MROs are planned for the DDS (Dust Detector), MAG (Magnetometer) and EUV (Extreme Ultraviolet) instruments. Tomorrow, DMS MRO activity will continue. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:36:25.42 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Discoveries (article) Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:35:58.66 Date: Mon, 16 Sep 1991 15:32:24 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916153224.2d400329@MIPL5.JPL.NASA.GOV> Subject: Magellan Discoveries (article) To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:159 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Discoveries (article) Date: 11 SEP 91 16:47:38 Message-ID:<1991Sep11.164429.8614@elroy.jpl.nasa.gov> Science News September 7, 1991 Record-Breaking Revelations from Venus By R. Cowen Two record-breaking discoveries - unveiled in a single day - offer compelling evidence of Venus' geologic activity, both past and present. On the morning of August 30, researchers announced that radar images of Venus revealed the solar system's longest channel, an ancient trough longer than the Nile River. Hours later, at a hastily called press conference, the same team announced an even more dramatic finding: other images showed that Venus suffered a massive landslide sometime in the past several months, providing the first confirmation of current geologic activity on a planet other than Earth. Jeffery Plaut of the Jet Propulsion Laboratory in Pasadena, Calif., says he discovered the landslide while comparing two radar images of Aphrodite Terra, an equatorial plateau. The Magellan spacecraft took one of the images last November and the other in July during its second trip around Venus. Placed side by side under a stereoscope, the images should have merged to form a three-dimensional view of a cliff and steeply sloping valley, with bright areas representing the most jagged regions. But a bright patch at the base of the valley, clearly visible in the July image, did not appear in the earlier picture. Plaut interprets the patch as a massive heap of rocks, roughly 1 mile wide and 4 miles long, that fell from the cliff at some point during the eight-month interim. A third, more recent Magellan image also shows the feature, he says. Plaut suggest that the landslide may have been triggered by an underground disturbance, such as a "Venusquake", or by a fracture originating at the planet's surface. It probably released as much energy as a magnitude 5 earthquake, he calculates. Though exciting, the discovery that Venus continues to experience geologic upheavals isn't surprising, he adds, since previous evidence suggest the planet has undergone many volcanic eruptions during the past several million years. Plaut says he expects Magellan to capture other such events as it continues to map Venus. Magellan's other radar revelation emerged in images taken in August. The unusually long channel, stretching across the plains of Venus for 4,200 miles, begins just above the equatorial highlands in a region west of Atla Regio and follows a smoothly curving, northward course toward a large basin called Atalanta Palnitia. Soviet spacecraft spied sections of the trough in 1984, but only with Magellan's higher resolution could researchers gauge its full extent, says project scientist Steve Saunders of the Jet Propulsion Laboratory. Magellan had previously mapped similiar, shorter channels on the Venusian plains. Many of these terminate at lava flows, suggesting they were carved out by molten lava from a volcanic eruption, Saunders says. But it's difficult to understand how a lava flow could have remained fluid long enough to create a channel as extensive as the newly discovered one, he adds. In a rugged terrain of ridges and impact craters, the remarkably uniform width of this trough - which averages 1.1 miles across - poses another puzzle, says Saunders. He speculates that the region may have been far smoother when the lengthy channel originally formed. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:37:37.79 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/11/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:37:14.66 Date: Mon, 16 Sep 1991 15:33:40 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916153340.2d40032a@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/11/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:160 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/11/91 Date: 11 SEP 91 17:59:22 Message-ID:<1991Sep11.175615.10451@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 11, 1991 The Magellan spacecraft is performing nominally. There was only one missed star during yesterday's starcals (star calibrations) and desats (desaturations of the reaction wheels). Attitude updates range from .006 to .011 degree. Yesterday, spacecraft controllers uplinked a change to the Delayed Engineering Data to provide more visibility into temperatures. They are also planning to change to solar panel offpoint to provide some shading of Bay 5. Magellan is presently mapping Venus in a right-look mode. Due to the two 20-minute cooling periods in each orbit, the image swaths begin at about 5 degrees north latitude and extend to the South Pole. Magellan has recently mapped a 50-orbit area of Cycle 1 which was partially unprocessable due to the deterioration of the on-board tape recorder "A". The new image area recovered puts us just over the 90% mark in our coverage of Venus. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:42:28.88 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/11/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:41:59.04 Date: Mon, 16 Sep 1991 15:38:24 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916153824.2d40032b@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/11/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:161 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/11/91 Date: 11 SEP 91 20:31:36 Message-ID:<1991Sep11.202822.14090@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 11, 1991 The Galileo spacecraft is operating normally in the all-spin mode and transmitting coded telemetry at 40 bps. Yesterday, the DMS (Data Management Subsystem) MRO (Memory Readout) activity continued. The first segment, approximately 118 lines, of optical navigation image #1 was delivered to the Image Processing Laboratory and later to the Navigation Team. Data looks good. Yesterday, science MROs of the DDS (Dust Detector), MAG (Magnetometer) and EUV (Extreme Ultraviolet Spectrometer) instruments were completed. Tomorrow, the DMS MRO of Optical Navigation Image #1 will continue. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:43:00.71 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/12/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:42:16.89 Date: Mon, 16 Sep 1991 15:38:41 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916153841.2d40032c@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/12/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:162 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/12/91 Date: 12 SEP 91 17:33:14 Message-ID:<1991Sep12.173003.10952@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 GALILEO MISSION STATUS September 12, 1991 The Galileo spacecraft is almost 197 million miles from Earth, and more than 194 million miles from the Sun. Its speed in orbit is 38,132 miles per hour. The spacecraft is operating normally in the dual-spin mode, rotating at 3.15 rpm. It is transmitting coded telemetry at 40 bits per second; one-way communication time is currently 17 minutes 37 seconds. On Tuesday the first segment of the first optical navigation image, recorded September 6, was received, as were scientific data from the dust detector, magnetometer, and extreme ultraviolet instrument. Today the spacecraft is transmitting another segment of the optical navigation image. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:43:26.58 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/12/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:42:43.64 Date: Mon, 16 Sep 1991 15:39:08 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916153908.2d40032d@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/12/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:163 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/12/91 Date: 12 SEP 91 20:18:26 Message-ID:<1991Sep12.201519.14351@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 12, 1991 The Magellan spacecraft is performing nominally. All starcals (star calibrations) and desats (desaturations) yesterday were successful. Spacecraft temperatures remain in the acceptable range. The DMS-B (Data Management Subsystem-B) tape recorder head now reaches 35.7 degrees C, but most other temperatures have stabilized within the planning limits. There were no commands sent to the spacecraft yesterday, but later today controllers will send up a routine update of the command sequence. Magellan is mid-way through a 2-week command sequence which uses two 20 minute cooling periods in each orbit. This shortens the radar mapping swaths to about 65% of their normal length. Mapping begins at about 5 degrees north latitude and extends to the South Pole. Magellan has now completed 2552 mapping orbits, 876 since the start of Cycle 2. This Saturday will mark the halfway point in Cycle 2. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:44:26.10 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 09/13/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:43:23.54 Date: Mon, 16 Sep 1991 15:39:48 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910916153948.2d40032e@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 09/13/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:164 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 09/13/91 Date: 13 SEP 91 17:02:28 Message-ID:<1991Sep13.165913.28036@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. TELEPHONE (818) 354-5011 ULYSSES MISSION STATUS September 13, 1991 The Ulysses spacecraft is in excellent condition and is performing normally as it begins the final approach to Jupiter. Ground controllers are performing routine Earth-pointing maneuvers every six days. The next set of maneuvers are scheduled for Sunday, Sept. 15 and Monday, Sept. 23. Science experiments were returned to routine operations following the solar conjunction period, which concluded Thursday, Sept. 5. Data recovery has increased to approximately 75 percent since tape-recorder operations were resumed and the Solar Corona Experiment was terminated. The 70-meter ground antennas will provide coverage of the spacecraft through Sunday, Sept. 15, after which time controllers will return to use of the 34-meter antennas. Today Ulysses is approximately 767 million kilometers (476 million miles) from Earth, traveling at a heliocentric velocity of about 64,800 kilometers per hour (41,000 miles per hour). The spacecraft has about a million miles to travel before reaching Jupiter in early February 1992. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:48:39.87 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/13/91 Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:48:19.12 Date: Mon, 16 Sep 1991 15:44:43 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910916154443.2d20072d@IPL.JPL.NASA.GOV> Subject: Galileo Update - 09/13/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl3 jpl.spacecraft:166 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/13/91 Date: 13 SEP 91 19:33:36 Message-ID:<1991Sep13.193020.1345@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 13, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, the continued playback of the first of four planned optical navigation images was performed via the tape recorder memory readout (DMS MRO). Approximately 35% of the image has been received. Over the weekend, the DMS MRO will continue; no other spacecraft activities are planned. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:49:07.84 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/13/91 Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:48:46.83 Date: Mon, 16 Sep 1991 15:45:12 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910916154512.2d200730@IPL.JPL.NASA.GOV> Subject: Magellan Update - 09/13/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl3 jpl.spacecraft:167 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/13/91 Date: 13 SEP 91 19:34:57 Message-ID:<1991Sep13.193140.1471@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 13, 1991 Magellan spacecraft performance continues to be excellent. All starcals (star calibrations) and desats (desaturations) yesterday were successful. All spacecraft temperatures remain in the acceptable range. The DMS-B (Data Management Subsystem-B) tape recorder head has dropped slightly to 35 degrees C. Today, spacecraft controllers are planning to reset the Solar Array Drive Motor commanded position. The position as indicated by the potentiometers is 3x off from the position referenced in the on-board computer. Orbit #3060, on Saturday, September 14th marks the halfway point in our second cycle around Venus. Coincidentally, Sunday is the anniversary of when we started mapping operations. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 17:49:57.58 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/16/91 Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 17:49:31.56 Date: Mon, 16 Sep 1991 15:45:58 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910916154558.2d200732@IPL.JPL.NASA.GOV> Subject: Magellan Update - 09/16/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl3 jpl.spacecraft:168 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/16/91 Date: 16 SEP 91 21:51:44 Message-ID:<1991Sep16.214827.23538@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 16, 1991 The Magellan spacecraft is performing nominally. On Friday, the spacecraft experienced another spurious shutoff of the high power transmitter, TWTA-A, during a mapping pass. The fault protection worked perfectly, and no data was lost. Also on Friday, spacecraft controllers reset the Solar Array Drive Motor commanded position to adjust for slippage in the position as indicated by the potentiometers relative to the position referenced in the on-board computer. They also changed the Sun Loss Timer to 48 minutes. All spacecraft temperatures remain in the acceptable range. The Bay 7 temperature has risen about 2 degrees C, but this was expected. Orbit #3060, on Saturday, September 14th marked the halfway point in our second cycle around Venus. Each cycle is 243 earth days, the time it takes Venus to turn once on its axis. Cycle 2 will end on January 14, 1992. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 16-SEP-1991 18:06:52.84 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Re: Is Venus landslide recanted? Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 16-SEP-1991 18:06:31.58 Date: Mon, 16 Sep 1991 16:02:57 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910916160257.2d200829@IPL.JPL.NASA.GOV> Subject: Re: Is Venus landslide recanted? To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl3 sci.astro:11419 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Re: Is Venus landslide recanted? Date: 11 SEP 91 18:57:45 Message-ID:<1991Sep11.191241.12107@elroy.jpl.nasa.gov> In article <1991Sep11.173920.7162@athena.mit.edu>, kip@space.mit.edu (Karolen I. Paularena) writes... >I heard yesterday that radar processing problems (?) caused the bright >patch which Plaut interpreted as a landslide, and that he had >withdrawn his identification. So I was surprised to read Baalke's >posting (not a flame!). Does anyone know from direct evidence >whether Plaut did or did not withdraw his interpretation? Since the announcment of the landslide discovery, a second interpretation of the two images has come up. Since the two images were taken at different look angles (45 degrees from vertical versus 24 degrees), it is possible that the differences between the two images can be accounted for by what is called a layover effect, and if this is true, then there was no landslide. The scientists are split 50-50 on this. The only way to know for sure, is to take another image of the same area with the exact parameters used with the first image, and then compare the two. Magellan will pass over this area again in March 1992. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Good judgement comes from /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | experience. Experience |_____|/ |_|/ |_____|/ | comes from bad judgement. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 11:09:15.14 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/16/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 11:08:11.02 Date: Tue, 17 Sep 1991 9:04:26 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917090426.2dc002c9@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/16/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:169 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/16/91 Date: 17 SEP 91 00:12:33 Message-ID:<1991Sep17.000913.26377@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 16, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, the tape recorder playback activity (DMS MRO) is scheduled to continue. This activity is sending back the GASPRA optical navigation image taken on September 6; about 44 percent of the image will be returned by end of day today. In addition to the image playback, a USO ultra stable oscillator frequency test will be performed. Tomorrow, no spacecraft activities are scheduled. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 11:11:02.46 To: deen@utd750.utdallas.edu CC: Subj: HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL... Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 11:10:31.12 Date: Tue, 17 Sep 1991 9:06:53 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917090653.2dc002cb@MIPL5.JPL.NASA.GOV> Subject: HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL... To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:238 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ RELEASE 91-147/NASA, USA TODAY, DISCOVERY CHANNELL... Date: Thu, 12 Sep 91 13:28 PDT Message-ID: Terri Sindelar Headquarters, Washington, D.C. (Phone: 202/453-8400) September 12, 1991 RELEASE: 91-147 NASA, USA TODAY, DISCOVERY CHANNEL LAUNCH EDUCATION PROGRAM USA Today, in cooperation with NASA and the National Association of Elementary School Principals, today launched RVisions of ExplorationS -- the first multi-media educational program designed to bring the spirit of exploration into the classroom in 1992, the International Space Year. The Discovery Channel, a television partner, today debuted the first in a series of documentaries corresponding to Visions of Explorations. The Visions of Exploration curriculum motivates elementary and middle school students to learn about the explorers of the past and present in order to discover qualities within themselves to become the explorers of the future. The content integrates science, mathematics and social studies with creative expression from language arts, fine arts and career education. Visions of Exploration includes four instructional components which bring exploration to life. These include nine curriculum guides for teachers, ExplorerUs Journal for students, daily teaching plans and classroom sets of USA Today. The Discovery ChannelUs, Assignment Discovery, documentaries correspond to Visions of ExplorationUs five major themes: What is Exploration; Exploration: The Past; Exploration: The Present; Exploration: The Future; and Exploration: The Explorer in Me. These documentaries are commercial-free and may be taped by teachers for use in the classroom for 1 year from the date of taping. The first episode, RHelen Keller in Her Story,S debuted today on The Discovery Channel from 9-10 a.m. Eastern time. This hour-long documentary relates to Theme A, What is Exploration. This is a simple yet moving film in which Helen Keller evokes the personal drama of her story of courage, faith, perseverance, hope -- and exploration. - more - - 2 - Barbara Morgan represents the NASA Educational Affairs Division as the Teacher in Space Designee and the national education community as a third-grade teacher. She will incorporate Visions of Exploration into her classroom curriculum this year. The curriculum was field-tested in the fall of 1990 in five major school districts with approximately 200 teachers and 6,000 students participating in the pilot. A think tank of prominent scientists, astronauts and educators provided focus, while a national education advisory team provided direction during the programUs development, design and implementation phases. The advisory team included members from the National Association of Elementary School Principals, the National Science Teachers Association, the International Reading Association, the National Council for the Social Studies, the National Council of Teachers of Mathematics, the National Geographic Society, 4-H Youth Development and the Mathematical Science Education Board. For further information contact Steven Anderson, USA Today, (703) 276-5872 or Vicki Stearn, The Discovery Channel, (301) 986-0444. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 11:16:57.06 To: deen@utd750.utdallas.edu CC: Subj: Test Message Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 11:15:40.71 Date: Tue, 17 Sep 1991 9:12:04 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917091204.2dc002d3@MIPL5.JPL.NASA.GOV> Subject: Test Message To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:241 From: paojsc@nasamail.nasa.gov (J E. RILEY) Subject:Test Message Date: Mon, 16 Sep 91 11:11 PDT Message-ID: MCC STATUS REPORT #9 FLIGHT DAY FOUR 5:00 A.M. CDT The STS-48 crew completed 11 hours of experiments in fluid and structural dynamics. Mission Specialists Mark Brown, Jim Buchli and Sam Gemar first set up a series of Lexan cylinders--two containing silicon oil and two containing water--attached to a shaker device mounted in Discovery's mid-deck. A computer sent precisely controlled forces to the shaker device, then measured the fluid's movements. Experiment investigators hope to learn more about the impact of moving liquids, such as fuel, in future spacecraft. The astronauts then set up a series of four different models of truss structure being studied for Space Station Freedom. The computer also sent programmed vibrations to the truss structure and recorded responses. Engineers expect to gather additional knowledge to help develop more sophisticated computer models for accurately predicting the performance of future large space structures. The Upper Atmosphere Research Satellite controllers reported about 1 a.m. CDT that they were able to send computer commands to the observatory through the "A" receiver which had not accepted a transmission through the Tracking and Data Relay Satellite system since shortly before the observatory was deployed from the Shuttle late Saturday night. Payload controllers had been communicating with the observatory through the "B" receiver, a backup system. Engineers at the Goddard Payload Operations Control Center now believe both receivers are working properly. Because Discovery carried the UARS to an altitude of 308 nautical miles, the first of four planned altitude-raising burns is not needed. The first burn, set for early Monday morning, will not be performed. The other three burns are scheduled for Tuesday, Wednesday and Thursday. Discovery continues to perform well. No problems are being worked this morning. The apogee, or high point, of Discovery's orbit is 308 nautical miles and the perigee, or low point, is 303 nautical miles. The astronaut crew will go to sleep at 8:11 a.m. CDT and will wake up at 4:11 p.m. CDT to begin their last full day in space. STS-48 landing is scheduled for 1:09 a.m. CDT on Wednesday, September 18, at Kennedy Space Center, Florida. # # # From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 11:21:57.29 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-148/NEW OFFICE ANNOUNCED Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 11:21:26.29 Date: Tue, 17 Sep 1991 9:17:49 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917091749.2dc002da@MIPL5.JPL.NASA.GOV> Subject: HQ 91-148/NEW OFFICE ANNOUNCED To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:245 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-148/NEW OFFICE ANNOUNCED Date: Fri, 13 Sep 91 07:02 PDT Message-ID: Mark Hess Headquarters, Washington, D.C. September 13, 1991 (Phone: 202/453-4164) RELEASE: 91-148 NEW OFFICE OF SPACE FLIGHT DEVELOPMENT ANNOUNCED NASA Administrator Richard H. Truly today announced plans to create a new Office of Space Flight Development. The new development organization will have responsibility for Space Station Freedom development; large propulsion systems development, including the new National Launch System and its new space transportation main engine; other large space flight developments; and the advanced transportation systems program planning function. "As a result of this organizational change, NASA's existing Office of Space Flight will be able to devote undivided attention to the safety and efficiency of space flight operation," Truly said. The office will retain responsibility for the Space Shuttle program, Space Station Freedom/Spacelab operations and utilization, expendable launch vehicle operations and upper stages. This office also will be charged with the responsibility to establish operational requirements for new capability development projects undertaken by the new Office of Space Flight Development. Institutional reporting of NASA Field Centers will remain unchanged. Detailed definition of the new development organization and appointment of the Associate Administrator will be completed in the coming weeks. The decision to create the new office was shared with former Chairman Norman Augustine and the individuals who served on the Advisory Committee on the Future of the U.S. Space Program, gathered at the Kennedy Space Center, Fla. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 11:27:53.46 To: deen@utd750.utdallas.edu CC: Subj: NEWS RELEASE/KSC LANDINGS Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 11:27:14.58 Date: Tue, 17 Sep 1991 9:23:38 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917092338.2dc002e3@MIPL5.JPL.NASA.GOV> Subject: NEWS RELEASE/KSC LANDINGS To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:246 From: pao.ksc@nasamail.nasa.gov (DICK YOUNG) Subject:NEWS RELEASE/KSC LANDINGS Date: Mon, 16 Sep 91 14:51 PDT Message-ID: Bruce Buckingham 407/867-2468 Sept. 16, 1991 KSC RELEASE NO. 113 - 91 DISCOVERY SCHEDULED TO LAND AT KSC The orbiter Discovery is scheduled to make the first planned nighttime landing at Kennedy Space Center at the conclusion of its current STS-48 mission, which began Sept. 12. Landing of Discovery at KSC's Shuttle Landing Facility (SLF) is slated for 2:06 a.m. Eastern Time, Wednesday, Sept. 18, on orbit 80. During descent, Discovery will enter Florida airspace north of Jacksonville, Fla. over the Florida/Georgia border town of Folkston, Ga. Discovery will then follow Florida's east coast to land at KSC. The orbiter will pass near Jacksonville about 8 minutes, 42 seconds before touchdown, at an altitude of about 119,000 feet and traveling at a speed of Mach 4.7. The orbiter will then pass over St. Augustine, Daytona Beach and Titusville before landing at KSC. If there is a landing delay during the first opportunity on Wednesday, a second KSC landing opportunity occurs at 3:38 a.m. Wednesday. Additional landing opportunities at KSC are also available on Thursday and Friday, at 2:06 a.m. and 2:01 a.m. respectively. This mission marks only the second time since January 1986 that NASA managers determined normal end-of-mission (EOM) Shuttle landings could be scheduled for KSC. It marks the first nighttime EOM landing at KSC's Shuttle Landing Facility. The SLF was built in 1975. It is 300 feet wide and 15,000 feet long with 1,000 foot overruns at each end. The strip runs northwest to southeast. It is located about 3 miles northwest of the Vehicle Assembly Building. -- more -- -- 2 -- Prior to last month's landing of the Space Shuttle Atlantis at KSC, Edwards Air Force Base, Ca. had been listed as the prime landing site for Shuttle orbiters since the Challenger accident. The up-coming landing of Discovery, if weather permits, will be the ninth landing at KSC in the 10 year history of Space Shuttle flight. Three landings have occurred at KSC since return- to-flight in Sept. 1988. The first two were originally scheduled for Edwards Air Force Base, but were diverted to KSC due to poor weather conditions at Edwards. The third landing, which occurred last month, was the first planned end-of-mission landing since Discovery touched down here on April 19, 1985. Previous landings at KSC were: 41-B - Challenger, Feb. 11, 1984 41-G - Challenger, Oct. 13, 1984 51-A - Discovery, Nov. 16, 1984 51-C - Discovery, Jan. 27, 1985 51-D - Discovery, April 19, 1985 STS-38 - Atlantis, Nov. 20, 1990 STS-39 - Discovery, May 6, 1991 STS-43 - Atlantis, Aug. 11, 1991 General weather restrictions for a KSC landing are specified in part as: * Surface winds must be less than 20 knots in any direction, and less than 12 knots for crosswinds; * The ceiling must be greater than 10,000 feet. For scattered clouds below 10,000 feet, cloud cover must be observed to be less than 20 percent at the deorbit burn go/no go decision time; * Visibility must be seven miles or greater; * There can be no precipitation at the surface or aloft in the proximity of the orbiter; * Thunderstorms, rain or the potential for lightning cannot be within 30 nautical miles of the landing site; * Vertical cloud clearance at the 30 nautical mile range, must be greater than 2 nautical miles. -- more -- -- 3 -- Once the orbiter is on the ground, safing operations will commence and the flight crew will prepare the vehicle for post- landing operations. For this mission and all following missions, a new transport vehicle will be used to assist the crew, allowing them to egress the vehicle and doff their launch and re-entry suits easier and quicker. This vehicle, called the Crew Transport Vehicle, or CTV, was purchased from Continental Airlines at Denver for use at KSC. A similar CTV was used to assist crew egress at the conclusion of mission STS-40 which landed at Edwards Air Force Base on June 14, 1991. The CTV and other KSC landing convoy operations have been in an "on-call" status since the launch of Discovery September 12. The primary functions of the Space Shuttle recovery convoy are to provide immediate service to the orbiter after landing, prepare the orbiter for towing to the Orbiter Processing Facility and assist crew egress. Convoy vehicles are stationed at the SLF's mid-point. About two hours prior to landing, convoy personnel don SCAPE suits, or Self Contained Atmospheric Protective Ensemble, and communications checks are made. A warming up of coolant and purge equipment is conducted and nearly two dozen convoy vehicles are positioned to move onto the runway as quickly and as safely as possible once the orbiter coasts to a stop. When the vehicle is deemed safe of all potential explosive hazards and toxic gases, the purge and coolant Umbilical Access Vehicles move into position at the rear of the orbiter. Following purge and coolant operations, flight crew egress preparations will begin and the CTV will be moved into position at the crew access hatch located on the orbiter's port side. Once access to the vehicle is gained, a physician will board the shuttle and conduct a brief preliminary examination of the astronauts. The crew will then make preparations to leave the vehicle. Additional preparations to accommodate a nighttime landing were made by the KSC convoy team and landing recovery personnel. Because the orbiter has no lights of its own, a special bank of xenon lights will be stationed near each end of the runway to provide illumination of the projected touchdown zone and rollout path. Only the xenon lights at the end of the runway upon which the orbiter will land will be turned on. Care will be taken not to direct these portable, high intensity lights near the orbiter as it makes its approach. Also, convoy personnel have been directed to take extra precaution when traveling in the darkness. Convoy participants will tape high-intensity chem-lights to their legs and arms while working on the runway. Different colored lights will distinguish the personnel. The call-to-stations for all convoy personnel is set for 11:45 p.m. on the night of landing. -- more -- -- 4 -- About 2 hours, 40 minutes after landing, the orbiter will be towed to Orbiter Processing Facility bay 3 for post-flight deservicing. This will be the first use of this upgraded processing facility for post flight operations. Discovery will remain in OPF Bay 3 as preparations begin for its next scheduled mission, STS-42, in January 1992. Following their departure from the SLF, the crew will be taken to their quarters in the O&C, meet with their families, undergo a physical examination and depart for the skid strip at Cape Canaveral Air Force Station for their flight back to JSC. A departure ceremony and photo opportunity is scheduled for about 11 hours after landing. The exact time will be determined following landing. In the event a landing at KSC is not feasible and Discovery lands at Edwards, an augmented KSC convoy team will be on-site to safe the vehicle, disembark the crew and move the orbiter to the Mate/Demate Device. The turn around team will be deployed to Edwards by charter aircraft on landing day. # # # # NOTICE TO EDITORS: Specific information regarding news media departure times for the SLF, news center operational hours and photo opportunities are available at the KSC news center. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 19:57:52.55 To: deen@utd750.utdallas.edu CC: Subj: MCC STATUS 10 & 11 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 19:57:09.16 Date: Tue, 17 Sep 1991 17:53:30 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917175330.2dc0062d@MIPL5.JPL.NASA.GOV> Subject: MCC STATUS 10 & 11 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:254 From: paojsc@nasamail.nasa.gov (J E. RILEY) Subject:MCC STATUS 10 & 11 Date: Mon, 16 Sep 91 23:48 PDT Message-ID: MISSION CONTROL STATUS REPORT #10 4:30 p.m. CDT ---- Mon., Sept. 16, 1991 Today's wake-up music featured Elvis Presley singing "Are You Lonesome Tonight?" The song was selected because of its phrase "are you sorry we drifted apart?" in honor of the Space Shuttle Discovery's increasing separation from its prime payload the Upper Atmosphere Research Satellite which was deployed Sept. 14. As of 4:30 p.m. CDT today, Discovery was about 284 nm in front of UARS and the distance between the two spacecraft was increasing at a rate of about 12 nm per orbit. UARS continues to operate smoothly. All major subsystems have been checked out and instruments are being turned on. Today's activities onboard Discovery will include a checkout of orbiter systems used during entry. This checkout usually is performed the day before deorbit and includes cycling the orbiter's aerosurfaces and hydraulic systems, checking switch throws and speed brake systems. Following their post-sleep activities, STS-48 crew members will perform an inflight maintenance task involving the supply water dump line. Flight controllers believe the supply water dump nozzle has experienced a small leak that could allow ice to form at the nozzle's valve. To eliminate any chance of the supply water dump line from freezing, the crew will perform a purge of the dump line by forcing air through it, removing any water that might be in the line and thus preventing any possible freezing in the line. Once the line is purged, the crew then will use the flash evaporator system to dump excess potable supply water from the orbiter's potable water storage tanks. Crew members will wrap up work with middeck experiments before deactivating and stowing most of them. The crew will continue operation of the Middeck 0-Gravity Dynamics Experiment which studies mechanical and fluid behavior of components for Space Station Freedom and other future spacecraft. Crew members today will work on one portion of the experiment, the Structural Test Article, in which the vibration characteristics of jointed truss structures will be studied. Yesterday's operation of the other portion of the experiment, the Fluid Test Article which studied the sloshing of fluids in partially filled containers, was successful. The crew also will participate in a special event today when they talk to radio talk show host Larry King on tonight's Larry King Show. That event is scheduled to begin at a MET of 4/04:21 or 10:32 p.m. CDT on orbit 64. # # # From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 17-SEP-1991 19:58:46.37 To: deen@utd750.utdallas.edu CC: Subj: MISSION CONTROL STATUS REPORT #12 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 17-SEP-1991 19:58:00.77 Date: Tue, 17 Sep 1991 17:54:20 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910917175420.2dc0062e@MIPL5.JPL.NASA.GOV> Subject: MISSION CONTROL STATUS REPORT #12 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:255 From: paojsc@nasamail.nasa.gov (J E. RILEY) Subject:MISSION CONTROL STATUS REPORT #12 Date: Tue, 17 Sep 91 08:01 PDT Message-ID: MISSION CONTROL CENTER STS-48 Status Report #12 Tuesday, September 17, 1991, 7 a.m. CDT The STS-48 astronauts wrapped up their last full day in space this morning. The crew goes to sleep at 8:11 a.m. CDT and is scheduled to wake up at 4:11 p.m. CDT to prepare for a Wednesday landing. In the final hours of their last work day on orbit, crew members turned off the Protein Crystal Growth experiment and downlinked videotape of the experiment samples. At deactivation, Ken Reightler reported they saw several crystals growing on the plugs and syringe tips. Crystals grown in microgravity form more perfectly and allow investigators to determine a crystal's structure. Investigators say these experiments could lead to new drugs to combat numerous serious diseases. The final data gathering on the structural test assemblies of the Mid-deck 0-Gravity Dynamics Experiment (MODE) was also completed this morning. Models of truss structures designed for Space Station Freedom were assembled in the middeck, then energized by computer commands with precisely controlled forces. Strain gauges and sensors measured the responses of the truss model and the computer recorded the information for later analysis. Experiment results should lead to more sophisticated computer models that more accurately predict the performance of future large space structures. Payload managers for the Upper Atmosphere Research Satellite report the observatory is in good health. The first in a series of three orbit-raising burns occurred at 5:35 a.m. CDT. Lasting for 7 minutes, 44 seconds, and a change in velocity of 5.3 feet orbit of 305.2 by 310.5 nautical miles. Discovery continues to perform well while circling the Earth every 95 minutes at an altitude of 308 nautical miles and an orbital inclination of 57 degrees. # # # From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 18-SEP-1991 11:01:20.84 To: deen@utd750.utdallas.edu CC: Subj: HQ91-149/J.R. THOMPSON RESIGNSdadi Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 18-SEP-1991 10:59:53.23 Date: Wed, 18 Sep 1991 8:56:12 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910918085612.2e200282@MIPL5.JPL.NASA.GOV> Subject: HQ91-149/J.R. THOMPSON RESIGNSdadi To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:258 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ91-149/J.R. THOMPSON RESIGNS Date: Tue, 17 Sep 91 13:57 PDT Message-ID: Sue Mathis Richard Headquarters, Washington September 17, 1991 (Phone: 202/453-8364) RELEASE: 91-149 NASA DEPUTY ADMINISTRATOR RESIGNS NASA Deputy Administrator J.R. Thompson, Jr. announced today that due to personal circumstances, he has submitted a letter of resignation to the President and will leave his current responsibilities effective November 8, 1991. Thompson became NASA's Deputy Administrator on July 6, 1989. Thompson said, "I consider the last several years, serving as NASA's Deputy Administrator, a highlight of my career with the Agency that spans over 25 years. I have tremendous respect for the men and women of NASA who today lead the world in aeronautics and the exploration of space. Their collective achievements are unmatched anywhere in the world." He continued, "It has been a great privilege for me to serve under the leadership of President Bush, Vice President Quayle, and NASA Administrator Richard H. Truly. Their strong support of AmericaUs civil space program and vision of the future command the admiration of all of us." Thompson is an internationally recognized propulsion expert who has managed major space programs and directed major research and development efforts. Thompson entered federal service in 1963 at the Marshall Space Flight Center as a liquid propulsion engineer. In 1969, as Chief of Man/Systems Integration in the Astronautics Laboratory, he managed the design, test, and integration engineering for the man/machine interface on Skylab. Later in 1974, Thompson was chosen to manage the Space Shuttle main engine project. In 1982, he assumed responsibility for the technical integrity of engineering involved in all of Marshall's diverse programs as Associate Director of Engineering. -more- -2- In 1983, Thompson joined Princeton University's Plasma Physics Lab, working on fusion energy research. However, he responded to a call to rejoin NASA in 1986 as the Director of Marshall Space Flight Center to direct a major effort to return the Space Shuttle to safe flight following the Challenger accident. As Deputy Administrator, Thompson has spearheaded efforts to improve program management, upgrade institutional capabilities and aggressively fought for a balanced civil aeronautics and space program. NASA Administrator Truly said, "Our nation owes a profound measure of gratitude to J.R. Thompson. His brilliance, dedication and untiring efforts have been instrumental to the success of AmericaUs space program for a generation. His wise counsel and unflagging spirit will be sorely missed." -end- From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 18-SEP-1991 11:02:40.64 To: deen@utd750.utdallas.edu CC: Subj: Mission Control Status - Pre Entry Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 18-SEP-1991 11:01:11.93 Date: Wed, 18 Sep 1991 8:57:25 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910918085725.2e200285@MIPL5.JPL.NASA.GOV> Subject: Mission Control Status - Pre Entry To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:259 From: paojsc@nasamail.nasa.gov (J E. RILEY) Subject:Mission Control Status - Pre Entry Date: Tue, 17 Sep 91 16:23 PDT Message-ID: Forwarded message: Posted: Tue, Sep 17, 1991 3:35 PM PDT Msg: PJJB-2969-6730 From: SNESBITT To: PAOJSC Subj: MCC status report 12 MISSION CONTROL STATUS REPORT #12 5:30 p.m. CDT ---- Tuesday, Sept. 17, 1991 STS-48 crew members were awakened at 4:11 p.m. CDT today to the song "Return to Sender" performed by Elvis Presley in honor of their expected landing early tomorrow morning. The crew is expected to perform a four-and-a-half minute deorbit burn on orbit 79 at a MET of 5/05:44 or 11:55 p.m. CDT today. Landing is scheduled to occur on orbit 80 at a MET of 5/06:55 or 1:06 a.m. Wednesday. The weather forecast is expected to be favorable for the first night landing at Kennedy Space Center in Florida in the Space Shuttle program. Scattered clouds are expected at 25,000 feet and 2,500 feet with some patchy ground fog. Reentry ground track will bring Discovery over the upper Pacific Northwest near Juno, Alaska, crossing the middle of Canada before starting across the U.S. above North Dakota. Crew members this evening will deactivate and stow the Radiation Monitoring Equipment experiment before beginning deorbit preparations. The RME was designed to measure and record ionizing radiation exposure to the crew in the orbiter cabin and time tag the exposure with mission elapsed times. Shortly after the crew began their sleep period today about 9:55 a.m., they were awakened when an above normal nitrogen flow rate of more than five pounds per hour triggered a master alarm aboard Discovery. Flight controllers believe that the cabin regulator was near its high flow setting and when the system switched from its oxygen to its nitrogen cycle, the pressure may have triggered the regulator to the high setting which in turn triggered the alarm. Flight controllers assured the crew that this cycling was normal and the system would be reset so the alarm would not be triggered and awaken them again. There are no orbiter or other system problems which are of concern in anticipation of tomorrow morning's landing. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 18-SEP-1991 11:06:49.38 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/17/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 18-SEP-1991 11:05:33.04 Date: Wed, 18 Sep 1991 9:01:52 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910918090152.2e200290@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/17/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:170 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/17/91 Date: 17 SEP 91 19:30:24 Message-ID:<1991Sep17.192705.18416@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 17, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, no spacecraft activity is planned. Tomorrow, continued playback of the GASPRA optical navigation image is scheduled. Additionally, an imaging instrument (SSI) memory readout is planned to verify the instrument's health and safety. An EPD (Energetic Particles Detector) motor maintenance activity is also planned. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 18-SEP-1991 11:09:24.43 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/17/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 18-SEP-1991 11:08:01.68 Date: Wed, 18 Sep 1991 9:04:19 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910918090419.2e200291@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/17/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:171 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/17/91 Date: 17 SEP 91 19:32:11 Message-ID:<1991Sep17.192850.18554@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 17, 1991 The Magellan spacecraft is performing nominally. On Monday, a normal Radar Control Parameter File was sent to the spacecraft successfully. Also on Monday, a command was approved which will provide an increase sampling of the +X solar array telemetry to facilitate diagnosis of SADM (Solar Array Drive Mechanism) slip. This command will be sent to the spacecraft on Wednesday. All spacecraft temperatures remain in the acceptable range. The Bay 7 temperature which contains CDS (Command Data Subsystem) now peaks at 54.9 degrees C and DMS-B (Data Management Subsystem-B) head temperature peaks at 35 degrees C. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 18-SEP-1991 11:13:25.53 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 09/16/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 18-SEP-1991 11:11:48.58 Date: Wed, 18 Sep 1991 9:08:07 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910918090807.2e200293@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 09/16/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:172 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 09/16/91 Date: 18 SEP 91 15:32:44 Message-ID:<1991Sep18.152935.12365@elroy.jpl.nasa.gov> Forwarded from Peter Beech, Ulysses Operations Manager SUBJECT: ULYSSES MISSION OPERATIONS REPORT No. 56 PERIOD: 10th September to 16th September 1991 1. MISSION OPERATIONS On 10th September a RAM load of the Energetic Particle Composition portion of the Energetic Particle and Neutral Interstellar Gas experiment (KEP) took place. On 11th September a health check of the GAS portion of the experiment took place. On 11th September a sounder mode change in The Radio and Plasma Waves experiment (STO) failed. A Data Processing Unit autonomous failure was detected in the telemetry On 12th September following a critical command request from the STO team, a Data Processing Unit reset was transmitted to the spacecraft. This was successful and sounder operations are continuing normally. No reason for this failure has been discovered. An Anomaly Report is being raised against this incident. Also on 12th September a thermal reconfiguration took place. The External Power Dumpers are now configured to 10 watts. On 13th September a Solar X-rays/Cosmic Gamma-Ray Bursts experiment (HUS) burst reference value change took place. An average of 97.8 % data recovery was achieved during this reporting period. The percentage of data acquired as a function of bit rate is as follows: 1024 bps 32.8 % 512 bps 64.9 % A routine Earth pointing manoeuvre was performed on 15th September. 2. SPACECRAFT STATUS POWER Nominal. Estimated S/C power consumption 267 watts. AOCS Nominal. TTC The spacecraft is currently configured with receiver 2 as the prime unit fed via the high gain antenna and with receiver 1 as backup fed through the low gain antenna (LGA-F). The downlink is currently via EPC1/TWTA1. The 70 meter ground stations are currently in use to support TTC operations. Received downlink level -134 dBm.(70 meter) X-band. (Variations of up to 10 db. can be expected as a result of station antenna in use, local weather conditions, and spacecraft antenna off-pointing). Received uplink level -120.7 dBm. DATA HANDLING Nominal. THERMAL Nominal. A spacecraft thermal reconfiguration took place on 12th September. 3. FLIGHT DYNAMICS Solar Aspect The angle increased from 4.13 on Angle (deg.) 10th September to 5.17 on 16th September. Sun-Probe-Earth The angle increased from 3.45 on Angle (deg.) 10th September to 4.41 on 16th September. Spin Rate 4.985 rpm. 4. ORBITAL DATA Data taken at 09:00 PDT. on 16th September. Distance from Earth 768,643,327 km. Distance from Jupiter 176,922,433 km. Velocity relative to the Sun 64,862 km/hr. Velocity relative to the Earth 132,350 km/hr. 5. PLANNED OPERATIONS Routine data gathering operations will continue together with experiment reconfigurations as required. Routine Earth pointing manoeuvres will be carried out on 21st and 23rd September. 34 meter ground station coverage will be resumed on 23rd September. 6. GROUND SEGMENT The ground segment performed nominally during the reporting period. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:14:08.19 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 09/18/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:06:19.62 Date: Mon, 23 Sep 1991 12:02:49 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120249.20200910@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 09/18/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:173 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 09/18/91 Date: 18 SEP 91 23:49:51 Message-ID:<1991Sep18.234633.23392@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 ULYSSES MISSION STATUS September 18, 1991 Routine spacecraft operations and data collection continued to be the primary activities on board the Ulysses spacecraft, which is traveling just above the ecliptic plane on its way to Jupiter. The 70-meter ground antennas are providing coverage of the spacecraft through Sept. 23, at which time tracking by the 34- meter antennas will be resumed. Earth-pointing maneuvers to keep the high-gain antenna pointed at Earth are being performed periodically. The next set of maneuvers will take place on Saturday, Sept. 21 and Monday, Sept. 23. Data acquisition has been returned to normal recovery levels of about 98 percent during each reporting period. Today Ulysses is about 770 million kilometers (479 million miles) from Earth, traveling at a heliocentric velocity of approximately 65,000 kilometers per hour (40,000 miles per hour). The spacecraft will reach Jupiter in early February 1992, where it will gain enough momentum from Jupiter's gravity to swing itself out of the ecliptic plane and onward to the poles of the sun. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:16:13.45 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/18/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:06:51.71 Date: Mon, 23 Sep 1991 12:03:27 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120327.20200912@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/18/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:175 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/18/91 Date: 18 SEP 91 23:48:22 Message-ID:<1991Sep18.234511.23267@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 18, 1991 The Magellan spacecraft is performing nominally. No commands were sent yesterday. All star scans were successful. All spacecraft temperatures remain in the acceptable range. The Bay 7 temperature which contains CDS (Command Data Subsystem) now peaks at 54.9 degrees C and DMS-B (Data Management Subsystem) head temperature peaks at 35 degrees C. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:18:20.30 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/18/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:07:17.61 Date: Mon, 23 Sep 1991 12:03:12 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120312.20200911@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/18/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:174 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/18/91 Date: 18 SEP 91 23:46:38 Message-ID:<1991Sep18.234325.23084@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 18, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Playback of the Gaspra optical image data continues today. At the end of the DSS-63 (Madrid 70 meter station) pass today approximately 410 lines of optical navigation image No. 1 will have been received on the ground. The routine periodic EPD (Energetic Particles Detector) motor maintenance activities occurred today as planned. An imaging instrument (SSI) memory readout occurred today as planned to verify the instrument's health and safety. Tomorrow no spacecraft activity is scheduled; no tracking coverage is scheduled. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:20:13.31 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update #2 - 09/19/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:07:56.89 Date: Mon, 23 Sep 1991 12:04:35 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120435.20200917@MIPL5.JPL.NASA.GOV> Subject: Galileo Update #2 - 09/19/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:178 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update #2 - 09/19/91 Date: 19 SEP 91 23:34:16 Message-ID:<1991Sep19.233057.21022@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 19, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. No spacecraft activities were planned for today. A special wobble identification activity will be commanded tomorrow to gather data defining the x and y axis components of the spacecraft wobble. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:21:45.69 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/19/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:08:19.01 Date: Mon, 23 Sep 1991 12:03:48 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120348.20200914@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/19/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:176 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/19/91 Date: 19 SEP 91 18:13:38 Message-ID:<1991Sep19.181022.14755@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 GALILEO MISSION STATUS September 19, 1991 The Galileo spacecraft is more than 206 million miles from Earth, and about 196 million miles from the Sun. It has traveled 1.055 billion miles in its looping flight path since launch in October 1989, and has about 35 million miles more to go before encountering Gaspra on October 29, 1991. On Monday, Wednesday, and Friday this week the spacecraft was scheduled to play back recorded segments of its first optical navigation image, which will locate Gaspra among background stars and help the flight team correct Galileo's flight path and aim instruments for the encounter. More than half of that image had been received as of Wednesday. The spacecraft is operating normally in the dual-spin mode, with the spin axis pointed toward the Earth, transmitting coded telemetry at 40 bits per second. Tuesday and today no tracking or other spacecraft activity was scheduled. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:23:00.92 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/19/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:08:50.78 Date: Mon, 23 Sep 1991 12:04:18 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120418.20200915@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/19/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:177 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/19/91 Date: 19 SEP 91 20:07:27 Message-ID:<1991Sep19.200408.17333@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 MAGELLAN STATUS REPORT September 19, 1991 The Magellan spacecraft is performing normally. Wednesday night, one star scan was only partially successful. All others were fine. One command was sent Wednesday to gather more solar array data. The data will be used to gain some insight into a solar array slippage problem. Earlier, controllers had reset the solar array drive motor commanded position to adjust for slippage when it was found the position did not match the on-board computer's reference. All spacecraft temperatures remain in the acceptable range. ###### Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 19, 1991 The Magellan spacecraft is performing nominally. One command was sent Wednesday morning to change one of the telemetry support fields to gather more solar array data. This data will be used to gain some insight into the solar array slippage problem. During Wednesday night one star scan was only partially successful. All others were fine. All spacecraft temperatures remain in the acceptable range, with no change from the previous day. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:24:30.46 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/20/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:09:43.95 Date: Mon, 23 Sep 1991 12:06:24 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120624.20200919@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/20/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:179 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/20/91 Date: 20 SEP 91 17:21:14 Message-ID:<1991Sep20.171808.6000@elroy.jpl.nasa.gov> Forwarded from Neal Ausman, Galileo Mission Director GALILEO MISSION DIRECTOR STATUS REPORT POST-LAUNCH September 13 - 19, 1991 SPACECRAFT 1. The tape recorder (DMS) playback of the Gaspra optical navigation image continued this week with DMS memory readout activities completed on September 15, 16 and 18. Approximately 55 percent of the image has now been returned. 2. Two imaging instrument (SSI) memory readouts were completed on September 14 and 18 to verify the instrument's health and safety. 3. A NO-OP command was sent on September 18 to reset the command loss timer to 288 hours, its planned value for this mission phase. 4. An Ultra-Stable Oscillator (USO) test was performed on September 18 to characterize this ultra stable RF downlink frequency source. 5. The energetic particle instrument (EPD) performed a sector scan on September 18 as part of its regularly scheduled motor maintenance activity. After the scan the motor was repositioned back to Sector 4. Proper motor positioning was verified via EPD MRO (Memory Readout) data. 6. The AC/DC bus imbalance measurements exhibited some changes. The AC measurement fluctuated 12 DN and now reads 43.7 volts; the DC measurement changed 12 DN and now reads 14.4 volts. All other power telemetry and subsystem telemetry are normal. 7. Commands were sent on September 18 and 19 to precondition the spacecraft for a special Wobble Identification activity planned for September 20. 8. The Spacecraft status as of end of day September 19 was as follows: a) System Power Margin - 71.5 watts b) Spin Configuration - Dual-Spin c) Spin Rate/Sensor - 3.15 rpm/star scanner d) Spacecraft Attitude is Earth pointed; Sun Point Angle - approximately 27 degrees (sun lagging) plus or minus 0.3 degree e) Downlink telemetry rate/antenna-40 bps (coded)/LGA-1 f) General Thermal Control - all temperatures within acceptable range g) RPM Tank Pressures - all within acceptable range h) Orbiter Science- all powered on except PLS, PPR and NIMS i) Probe/RRH - powered off, temperatures within acceptable range j) CMD Loss Timer Setting - 288 hours Time To Initiation - 284 hours UPLINK GENERATION/COMMAND REVIEW AND APPROVAL: None Project reviewed and approved the EE-3 (Earth-Earth 3)prime Gaspra encounter profile design on September 17. GDS (Ground Data Systems): 1. The first combination DSN (Deep Space Network) Mission Readiness Test (MRT) and Project Ground Data System (GDS) test was successfully completed on September 15th with DSS-43 (Canberra 70 meter station). The objective of the tests are to demonstrate DSN and GDS readiness for Gaspra support. The Project and DSN tests are being combined to minimize requirements for DSN resources. Project GDS testing has indicated inconsistent time tagging of telemetry data during DSN Type B Telemetry Processor Assembly (TPA) string support. Although this will not affect Gaspra support, this needs to be understood and resolved before standard operational support can begin using the Type B string. Operational support is currently scheduled on Type A strings which do not have this problem. However, the Project is interested in switching as soon as possible to take advantage of the better performance available with Type B telemetry. TRAJECTORY As of noon Thursday, September 19, 1991, the Galileo Spacecraft status was as follows: Distance from Earth 206,104,380 miles Distance from Sun 196,059,380 miles (2.11 AU) Heliocentric Speed 37,580 miles per hour Distance from Gaspra 17,449,040 miles Round Trip Light Time 36 minutes, 44 seconds SPECIAL TOPICS 1. As of September 19, 1991, a total of 5790 real-time commands have been transmitted to Galileo. Of these, 1915 have been pre-planned in the sequence design and 3875 were not. In the past week, five real time commands were transmitted; of these one was pre-planned. In addition 1903 mini-sequence commands have been transmitted since March 1991. Major commanding activities this week included resetting the command loss time, Wobble ID related DAC (Delayed Action Commands) turning the TWNC on and the gyro heaters on before the Wobble ID and gyros off following the Wobble ID. 2. On September 13, the spacecraft WOBEST attitude control telemetry measurement indicated an unexpected change of about 1 mrad. The cause for this change is unknown but may be due to a slight change in position of the magnetometer boom induced by the last week's SITURN to Earth point and/or thermal deflection induced by solar input at Earth pointed attitude (30-degrees off sun attitude). The wobble data continued to change over the week decreasing to approximately .1 mrad (a value very close to the wobble achieved after the pre EE-2 wobble compensation activity on August 24). A spacecraft full (x and y axis) wobble identification test is being planned for September 20. The consequences of the wobble change on the optical navigation and Gaspra activities is being assessed. 3. A training exercise of the uplink process which will be required to generate "tweaks" to the Scan Platform pointing for Gaspra was conducted in a series of non-real time segments from September 10th through September 12th. Although the tweak process completed about 6 hours late, a post-test critique concluded that most of the problems were related to the preliminary nature of the baseline sequence. A test report memo was distributed documenting findings and resulting actions. A retest will be conducted during the week of September 30th. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 23-SEP-1991 14:26:42.83 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/20/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 23-SEP-1991 14:11:23.52 Date: Mon, 23 Sep 1991 12:06:59 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910923120659.2020071c@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/20/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:181 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/20/91 Date: 20 SEP 91 23:16:26 Message-ID:<1991Sep20.231323.3013@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 20, 1991 The Magellan spacecraft is performing nominally. The next mapping sequence, M1263, was uplinked Thursday night. This sequence is set to go active today at 2:30 p.m. PDT. All star scans were successful over the last 24 hours. All spacecraft temperatures remain in the acceptable range, with Bay 7 lowering .7 degree from the previous day. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 24-SEP-1991 19:37:53.16 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Postage Stamp Ceremony at JPL Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 24-SEP-1991 19:37:29.02 Date: Tue, 24 Sep 1991 17:34:10 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910924173410.208014bf@IPL.JPL.NASA.GOV> Subject: Postage Stamp Ceremony at JPL To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl3 jpl.general:42 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Postage Stamp Ceremony at JPL Date: 24 SEP 91 01:28:38 Message-ID:<1991Sep24.012553.28831@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. (818) 354-5011 Contact: Mary A. Hardin FOR IMMEDIATE RELEASE September 23, 1991 The public is invited to attend a special ceremony at 10 a.m. Tuesday, Oct. 1, 1991, at the Jet Propulsion Laboratory, to commemorate the introduction of a set of U.S. postage stamps depicting planetary exploration. The hour-long ceremony will feature statements from Anthony M. Frank, U.S. postmaster general, and Jose L. Castellanos, postmaster of Pasadena, and remarks from Dr. Edward C. Stone, Jr., director of JPL. The U.S. Marine Corps marching band will perform. In addition to the ceremony, postal workers will be selling the stamps and other items from 9 a.m. to 3 p.m. in JPL's von Karman Auditorium. The sets feature 10 stamps, each with a picture of one of the nine planets in our solar system and the Earth's Moon; each is shown with one of the spacecraft that have journeyed to it. Pluto is the only planet not yet explored. The stamps show Mariner 10 at Mercury, Mariner 2 at Venus, the Landsat satellite above the Earth, the Lunar Orbiter at the Moon, the Viking Orbiter at Mars, Pioneer 11 at Jupiter, Voyager 2 at Saturn, Uranus and Neptune, and a solitary Pluto waiting to be visited. The stamps were designed by artist Ron Miller of Fredericksburg, Virginia. The $5.80 stamp booklet contains two panes of 10, 29-cent stamps. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 24-SEP-1991 19:38:40.15 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/23/91 Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 24-SEP-1991 19:38:18.91 Date: Tue, 24 Sep 1991 17:35:08 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910924173509.208014c5@IPL.JPL.NASA.GOV> Subject: Galileo Update - 09/23/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl3 jpl.spacecraft:182 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/23/91 Date: 24 SEP 91 01:26:45 Message-ID:<1991Sep24.012343.28727@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 23, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. No spacecraft activities were planned over the weekend; no tracking coverage was scheduled. Today playback of Optical Navigation Image Number 1 continues. In additional 100 lines of the image will be returned today over DSS 63 Madrid and DSS14 Goldstone. In addition a SSI (Solid State Imaging) health check memory readout will be performed. Tomorrow playback of the optical navigation data will continue. There will also be a MAG (Magnetometer) instrument science data memory readout. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 24-SEP-1991 19:40:48.02 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: New Mars Mini-Rover Successfully Tested Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 24-SEP-1991 19:40:23.43 Date: Tue, 24 Sep 1991 17:37:12 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910924173712.208012c7@IPL.JPL.NASA.GOV> Subject: New Mars Mini-Rover Successfully Tested To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl3 jpl.spacecraft:183 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:New Mars Mini-Rover Successfully Tested Date: 24 SEP 91 14:50:17 Message-ID:<1991Sep24.144717.11241@elroy.jpl.nasa.gov> Drucella Andersen Headquarters, Washington, D.C. September 24, 1991 (Phone: 202/453-8613) Paula Cleggett-Haleim Headquarters, Washington, D.C. (Phone: 202/453-1547) Jim Doyle Jet Propulsion Laboratory, Pasadena, Calif. (Phone: 818/354-5011) RELEASE: 91-153 NASA SUCCESSFULLY TESTS NEW MARS MINI-ROVER Scientists and engineers at NASA's Jet Propulsion Laboratory (JPL), Pasadena, Calif., investigating low cost approaches to exploring Mars, successfully tested a small robotic vehicle in rough terrain nearly identical to the two Viking landing sites on Mars. The test of the mini-rover Rocky III in the Avawatz Mountains south of Death Valley on Sept. 11 demonstrated one of several proposed approaches to future Mars exploration. Mini-rovers and the even smaller micro-rovers provide NASA planners with a new class of low-cost planetary exploration options, said Roger Bedard, Manager of Rover Technologies at JPL. Micro-rovers are defined as robotic vehicles under 11 pounds in weight. Mini-rovers are larger, up to about 52 pounds, the weight of Rocky III. The rovers will carry cameras for close-up looks at the surface and to scan the horizon of Mars. In addition, they will carry micro- machined sensors to test the atmosphere and soil, spectrometers to gather geologic information and seismometers to capture data on crustal motion. Dr. Matthew Golombek, principal science advisor on the project, said the terrain used in the test has the rock size and distribution of the Viking 2 site on Mars and features large boulders strewn across a graveled surface. Rocky III successfully traversed the rough terrain in two tests, he said. It also was successful in traversing a lava field in the Mojave Desert. "It was at least a starting point," Golombek said. "We are certain there are basalt (lava) flows on Mars. We are testing this rover for an unmanned sample-return mission." Don Bickler, an engineer and one of the designers of the rover, said the group wanted also to "test the rover's configuration, the suspension geometry, the ratios of levers and the wheel diameters. We wanted to see if it would confirm the tests we made in the laboratory, to see if in the natural environment this thing would perform as the lab tests said it would. And it did." The next generation of micro- and mini-rovers, now being designed, will include microsensors to help the machine measure some qualities of its environment. Because of their small size and low weight, micro- and mini- rovers would be relatively inexpensive to launch to the moon or Mars, Bedard said. "A new era of space exploration is made possible by advances in miniaturization technology and in distributed communications," said Dr. Giulio Varsi, manager of JPL's Space Automation and Robotics Program. "I believe these advances will make possible less expensive missions and broader participation of people." JPL developed and tested the micro- and mini-rovers for NASA's Office of Aeronautics, Exploration and Technology, Washington, D.C. - end - ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 24-SEP-1991 19:44:02.81 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/24/91 Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 24-SEP-1991 19:43:41.43 Date: Tue, 24 Sep 1991 17:40:11 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910924174011.208018c9@IPL.JPL.NASA.GOV> Subject: Galileo Update - 09/24/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl3 jpl.spacecraft:184 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/24/91 Date: 24 SEP 91 18:34:42 Message-ID:<1991Sep24.183140.18030@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 24, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Playback of Optical Navigation Image No. 1 continues today. By the end of the Canberra Pass later tonight, more than 75% of the total image will have been captured on the ground and delivered to the Image processing system. Tomorrow, the Playback of Optical Navigation Image No.1 will continue. A periodic RPM (Retro Propulsion Module) flushing active is also planned. In addition, there will also be MAG (Magnetometer) and EUV (Extreme Ultraviolet Spectrometer) instrument science data memory readouts. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 24-SEP-1991 19:44:31.89 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/24/91 Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 24-SEP-1991 19:44:05.78 Date: Tue, 24 Sep 1991 17:40:56 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910924174056.208016cb@IPL.JPL.NASA.GOV> Subject: Magellan Update - 09/24/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl3 jpl.spacecraft:185 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/24/91 Date: 24 SEP 91 23:19:16 Message-ID:<1991Sep24.231611.23437@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 24, 1991 The Magellan spacecraft is performing nominally. All starcals (star calibrations) yesterday were successful, with only one missed star. Since Friday the spacecraft has been operating under the M1263 command sequence. This sequence includes two 22-minute cooling periods in each orbit, and offpointing of the solar panels for thermal control. The solar panel drive mechanism continues to experience a slippage, resulting in a difference of several degrees in the position indicated by the potentiometers as compared to the commanded position shown in the on-board computer. For example, this difference increased by 2-1/2 degrees in the last 24 hours. The problem, which has been observed for nearly a year, is more noticable when the orbit geometry requires greater movement of the solar arrays. The spacecraft controllers have corrected the difference by adjusting the commanded position in the on-board computer to match the actual position. Normally this correction is made when the slippage approaches a few degrees. So later today, controllers will send up the correction to the Solar Array Drive Mechanism (SADM) commanded position. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) 24-SEP-1991 19:52:35.70 To: deen@utd750.utdallas.edu CC: Subj: HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES Return-Path: Received: from IPL.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 24-SEP-1991 19:52:08.13 Date: Tue, 24 Sep 1991 17:48:58 PDT From: RGD059@IPL.JPL.NASA.GOV (Bob Deen) Message-Id: <910924174858.208018d5@IPL.JPL.NASA.GOV> Subject: HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl3 nasa.nasamail.p:265 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ RELEASE 91-150/SLS-1 NEW DISCOVERIES Date: Thu, 19 Sep 91 11:13 PDT Message-ID: Paula Cleggett-Haleim Headquarters, Washington September 19, 1991 (Phone: 202/453-1547) Kari Fluegel Johnson Space Center, Houston, Texas (Phone: 713/483-5111) Jane Hutchison Ames Research Center, Mountain View, Calif. (Phone: 415/604-4968) RELEASE: 91-150 EARLY RESULTS FROM LIFE SCIENCES MISSION SHOW NEW DISCOVERIES Scientists reporting preliminary results from the Spacelab Life Sciences-1 mission, flown last June, say strong scientific discoveries are forthcoming. Already indications are that the 9-day mission has provided new technology, offered first-time direct measurements and validated ground- based models. The findings are relevant to the health of spaceflight crews as well as important clinical problems. "The mission has exceeded our expectations. Although the results are preliminary, there is significant, new information that is changing our understanding of how humans adapt to spaceflight," said Dr. Arnauld Nicogossian, Director of NASA's Life Sciences Division. Highlighted below are preliminary findings of SLS-1 experiments, which involved interrelated studies of human and animal adaptation to space. Consistent with findings from similar experiments, white blood cell responsiveness, which helps the body fight infections, decreased. However scientists observed that function can be increased two-fold with the use of microcarriers-- small glass beads that promote cell interaction, which is essential for normal functioning. - more - - 2 - Preliminary results from the blood volume study show that within the first 24 hours of space flight, the volume of blood decreases by more than 10 percent in astronauts. The redistribution of blood that occurs during spaceflight causes the blood volume to be less than optimal upon return to Earth. Readaptation results from an increase in plasma volume over several hours and red blood cell mass over a few days. Astronauts have a reduced red blood cell mass after exposure to space. Various hypotheses have been made to account for this reduction, but they remain unproven. For the first time the kidney's role in compensating for weightlessness was studied. Preliminary analysis shows very early changes occur in body compartment analysis and hormone results. Scientists say the importance of the renal involvement in blood volume and pressure control must now be considered in the assessment of the health status of spaceflight crews. Direct and continuous measurement of central venous pressure using a cathetor produced unexpected results that suggested that much of the cardiovascular adaptation to space occurs on the launch pad and during launch. The lung function was thought to be gravity- dependent; that is on Earth, the air flow goes more to the upper lung with blood flow greater at the bottom. Scientists expected that this imbalance would disappear in a weightless environment. However, it was retained in space. The inference is that the distribution of air and blood flow is not gravity dependent; scientists will have to look for other explanations to this phenomena. Other studies demonstrated that decreased responsiveness of the blood vessels may contribute to cardiovascular deconditioning. The jellyfish, flown for the first time, metamorphosed from one form--polyps--to another-- ephyrae--in space. Both ephyrae which formed on earth and those that formed in space could pulse and swim. Space-formed jellyfish and ground- based controls are being studied in detail to determine whether there are differences in their structure or behavior. Preliminary results from studying gravity receptors, which help people orient their bodies, indicated that they are well organized to adapt to space. - more - - 3 - Preliminary findings indicate that both ground control and flight rats gained the same amount of weight. Bone length in both groups was comparable, although differences in the cranium were noted. It also appears that while the bone continued to grow and add mineral in the flight group, the bone strength is less than would be predicted by mass and mineral content. Early analysis of samples from four crewmembers indicated increased calcium excretion and bone mineral loss. Muscles showed a significant decrease in muscle mass resulting from exposure to weightlessness, an indication of muscle fiber atrophy. In addition, there was a reduction in the use of certain fatty acids as a usable energy source. These changes reflect the reduced gravity load and may impair the ability of a muscle to perform normally. SLS-1 scientists will continue to review data collected during the mission. Detailed written reports will be produced by mid-1992 and the SLS-1 investigations will be continued in the upcoming SLS-2 mission, scheduled for mid-1993. The Spacelab Life Sciences-1 mission is managed by the NASA Johnson Space Center for the Office of Space Science and Applications. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 25-SEP-1991 19:06:17.88 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/25/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 25-SEP-1991 19:05:51.00 Date: Wed, 25 Sep 1991 17:02:19 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910925170219.2020125f@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/25/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:186 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/25/91 Date: 25 SEP 91 19:41:26 Message-ID:<1991Sep25.193824.5574@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 25, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Playback of Optical Navigation Image No. 1 continues today. By the end of the Goldstone Pass later tonight, more than 90% of the total image will have been captured on the ground. Unless there is some major problem in the next three scheduled tracking passes it will not be necessary to use the Contingency Playback Window. Retrieval of Optical Navigation Image No. 1 went very well. A periodic RPM (Retro Propulsion Module) flushing activity is scheduled for today. Tomorrow, no spacecraft activities are planned. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 25-SEP-1991 19:06:58.75 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/25/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 25-SEP-1991 19:06:29.64 Date: Wed, 25 Sep 1991 17:03:17 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910925170317.20201265@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/25/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:187 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/25/91 Date: 25 SEP 91 19:42:58 Message-ID:<1991Sep25.193951.5695@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 25, 1991 The Magellan spacecraft is performing nominally. There were two missed stars during yesterday's starcals (star calibrations) and desats (desaturation of the reaction wheels). Yesterday, at about 9:00 AM (PDT), spacecraft controllers noticed that the slip rate on the solar array drive mechanism (SADM) had increased to 4 degrees in the past 24 hours. At this rate it was likely to trigger the on-board fault protection. They were unable to send up commands to reset the referenced position or to disable the SADM control loss fault protection because the spacecraft was starting a new mapping pass. As a result, Magellan did an IODA swap (changing from one Input-Output Drive Assembly to its backup). The spacecraft continued mapping, and when two-way communications resumed, the controllers disabled the SADM control loss fault protection and reset other fault protection parameters. All systems appear nominal, and the SADM slip has gone back to its previous rate. Magellan continues to map Venus in a right-look, constant incidence angle mode. Due to the two 22-minute cooling periods in each orbit, the image swaths begin at about 2.5 degrees south latitude and extend to the South Pole. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 25-SEP-1991 19:08:00.74 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 09/23/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 25-SEP-1991 19:07:35.48 Date: Wed, 25 Sep 1991 17:04:23 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910925170423.20201268@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 09/23/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:188 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 09/23/91 Date: 25 SEP 91 21:43:09 Message-ID:<1991Sep25.214004.9117@elroy.jpl.nasa.gov> Forwarded from Peter Beech, Ulysses Operations Manager SUBJECT: ULYSSES MISSION OPERATIONS REPORT No. 57 PERIOD: 17th September to 23rd September 1991 1. MISSION OPERATIONS Tape recorder operations based on recovering data acquired during the out of view periods are continuing on a routine scheduled basis. Experiment reconfigurations have been carried out as required. An average of 97.93 % data recovery was achieved during this reporting period. The percentage of data acquired as a function of bit rate is as follows: 1024 bps 53.15 % 512 bps 44.74 % Routine Earth pointing manoeuvres were performed on 21st and 23rd September. 34 meter ground station coverage was resumed on 23rd September. 2. SPACECRAFT STATUS POWER Nominal. Estimated S/C power consumption 267 watts. AOCS Nominal. TTC The spacecraft is currently configured with receiver 2 as the prime unit fed via the high gain antenna and with receiver 1 as backup fed through the low gain antenna (LGA-F). The downlink is currently via EPC1/TWTA1. The 70 meter ground stations are in use to support TTC operations until 23rd September. Received downlink level -135 dBm.(70 meter) X-band. (Variations of up to 10 db. can be expected as a result of station antenna in use, local weather conditions, and spacecraft antenna off-pointing). Received uplink level -129.0 dBm. DATA HANDLING Nominal. THERMAL Nominal. 3. FLIGHT DYNAMICS Solar Aspect The angle increased from 5.05 on Angle (deg.) 17th September to 6.07 on 23rd September. Sun-Probe-Earth The angle increased from 4.57 on Angle (deg.) 17th September to 5.49 on 23rd September. Spin Rate 4.984 rpm. 4. ORBITAL DATA Data taken at 09:00 PDT. on 23rd September. Distance from Earth 771,337,941 km. Distance from Jupiter 168,241,804 km. Velocity relative to the Sun 64,260 km/hr. Velocity relative to the Earth 115,290 km/hr. 5. PLANNED OPERATIONS Routine data gathering operations will continue together with experiment reconfigurations as required. Routine Earth pointing manoeuvres will be carried out on 25th, 27th and 29th September. 6. GROUND SEGMENT The ground segment performed nominally during the reporting period. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 25-SEP-1991 19:08:50.08 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update #2 - 09/25/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 25-SEP-1991 19:08:26.56 Date: Wed, 25 Sep 1991 17:04:58 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910925170458.20201069@MIPL5.JPL.NASA.GOV> Subject: Galileo Update #2 - 09/25/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:189 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update #2 - 09/25/91 Date: 25 SEP 91 23:07:26 Message-ID:<1991Sep25.230418.1260@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 GALILEO MISSION STATUS September 25, 1991 The Galileo spacecraft is 214 million miles from Earth, and 197.6 million miles from the Sun; it is receding from both. Its speed in orbit is 37,143 miles per hour. The spacecraft still has to fly about 29 million miles along the orbit before its encounter with Gaspra in just under five weeks. Galileo is operating normally in dual spin, transmitting coded telemetry at 40 bits per second. By the end of today, it will have transmitted more than 90 percent of the first optical navigation image. The image already indicates Gaspra's position against background stars, fully meeting the navigation data requirements. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 12:52:40.20 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 09/26/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 12:48:23.22 Date: Fri, 27 Sep 1991 10:44:55 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927104456.21000526@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 09/26/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:190 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 09/26/91 Date: 26 SEP 91 15:31:55 Message-ID:<1991Sep26.152848.19270@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 ULYSSES MISSION STATUS September 26, 1991 Ground controllers resumed tracking of the Ulysses spacecraft with the 34-meter antennas on Monday, Sept. 23, after using the 70-meter dishes for science experiments that were performed during a solar conjunction in late August. All ground operations and data acquisition are proceeding normally. Routine Earth-pointing maneuvers are being performed about every three days. The next set of maneuvers are scheduled for Friday, Sept. 27 and Sunday, Sept. 29. Today Ulysses is approximately 772 million kilometers (480 million miles) from Earth, closing in on Jupiter at a heliocentric velocity of about 64,000 kilometers per hour (40,000 miles per hour). The spacecraft has about 100 million miles to travel before reaching Jupiter in early February 1992. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 12:54:20.21 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/26/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 12:53:43.24 Date: Fri, 27 Sep 1991 10:45:27 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927104527.21000527@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/26/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:191 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/26/91 Date: 26 SEP 91 16:59:36 Message-ID:<1991Sep26.165631.21937@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 26, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Playback of Optical Navigation Image No. 1 continues today. By the end of the Goldstone pass later tonight the total image will have been captured on the ground. The Contingency Playback Window will not be used. Retrieval of Optical Navigation Image No. 1 went very well. Optical Navigation Image No.2 will be shuttered tomorrow. The DMS (Data Management Subsystem) will be set up for the DMSMRO (DMS Memory Readout) playback of that image. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 12:54:47.14 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update #2 - 09/26/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 12:53:57.29 Date: Fri, 27 Sep 1991 10:46:45 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927104645.21000528@MIPL5.JPL.NASA.GOV> Subject: Magellan Update #2 - 09/26/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:192 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update #2 - 09/26/91 Date: 26 SEP 91 21:27:57 Message-ID:<1991Sep26.212451.4059@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 26, 1991 The Magellan spacecraft is performing nominally. There were two missed stars during yesterday's starcals (star calibrations) and desats (desaturations). All systems appear nominal, and the SADM (Solar Array Drive Mechanism) slip has gone back to its previous rate. Magellan continues to map Venus in a right-look, constant incidence angle mode. Due to the two 22-minute cooling periods in each orbit, the image swaths begin at about 2.5 degrees south latitude and extend to the South Pole. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 13:29:48.18 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Galileo Detects Lightning on Venus Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 13:29:22.98 Date: Fri, 27 Sep 1991 11:20:47 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927112047.21000614@MIPL5.JPL.NASA.GOV> Subject: Galileo Detects Lightning on Venus To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:193 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Detects Lightning on Venus Date: 26 SEP 91 21:30:20 Message-ID:<1991Sep26.212717.4205@elroy.jpl.nasa.gov> Paula Cleggett Headquarters, Washington, D.C. September 26, 1991 (Phone: 202/453-1549) James H. Wilson Jet Propulsion Laboratory, Pasadena, Calif. (Phone: 818/354-5011) RELEASE: 91-156 LIGHTNING STORMS DETECTED IN VENUS ATMOSPHERE Scientists who studied the planet Venus from data received from the interplanetary spacecraft Galileo have greatly increased confidence that there are lightning storms in that planet's atmosphere. The science team used the spacecraft's plasma wave instrument to detect electromagnetic equivalents of thunderclaps most probably generated by lightning bolts deep in the atmosphere. Galileo flew by Venus at a distance of about 10,000 miles in February 1990. Pictures and other observations of the planet were recorded and then transmitted to Earth in November 1990, according to plan. Scientists have been analyzing the data since then. Galileo's primary scientific objective is to conduct close and extended observations of Jupiter, its atmosphere and its moons, beginning in December 1995. Launched in 1989, it was programmed to fly by Venus and Earth for gravity assists to help it reach Jupiter. It flew by Earth in December 1990 and is currently in the Asteroid Belt where it will obtain a close look at the asteroid Gaspra this October before returning for a second and final Earth flyby in December 1992. Science magazine published this week a collection of eight scientific articles on Galileo's Venus observations. - end - ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 13:50:40.84 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/26/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 13:50:18.57 Date: Fri, 27 Sep 1991 11:46:58 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927114658.2100062c@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/26/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:194 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/26/91 Date: 26 SEP 91 21:24:49 Message-ID:<1991Sep26.212152.3927@elroy.jpl.nasa.gov> PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 MAGELLAN STATUS REPORT September 26, 1991 The Magellan spacecraft is performing normally, but there were two missed star calibrations during Wednesday's starcals. Magellan continues to map Venus looking to its right and with a constant angle. Due to two 22-minute cooling periods in each orbit, the image swaths begin at about 2.5 degrees south latitude and extend to the south pole. That represents an additional four minutes of lost transmission time. Earlier, the spacecraft was hiding behind its high-gain antenna for two 20- minute periods to prevent solar heating of the instruments. The slip rate in the solar array drive mechanism increased to 4 degrees earlier this week. That is, there was a 4 degree difference between the actual angle of the solar array and the information contained in the on-board computer. Controllers sent up new commands to disable the drive mechanism's fault protection and set new fault protection parameters. Today, the solar array was back to normal. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | Beware of programmers who /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | carry solder irons. |_____|/ |_|/ |_____|/ | From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 13:52:04.01 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: New Magellan Images Released Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 13:51:41.18 Date: Fri, 27 Sep 1991 11:47:56 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927114756.2100062e@MIPL5.JPL.NASA.GOV> Subject: New Magellan Images Released To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:195 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:New Magellan Images Released Date: 27 SEP 91 15:44:28 Message-ID:<1991Sep27.154125.26651@elroy.jpl.nasa.gov> Paula Cleggett-Haleim Headquarters, Washington, D.C. September 27,1991 (Phone: 202/453-1547) Jim Doyle Jet Propulsion Laboratory, Pasadena, Calif. (Phone: 818/354-5011) N91-67 NOTE TO EDITORS: NEW MAGELLAN IMAGES RELEASED Two new images released by NASA today show that Venus is even more torn by tectonic forces than had been thought before the Magellan mapping began. According to Dr. Steve Saunders, Magellan Project Scientist at NASA's Jet Propulsion Laboratory, Pasadena, Calif., the planet's dynamic nature is becoming increasingly evident with more than 90 percent of Venus now mapped by the Magellan spacecraft over the past 377 days. He describes Earth's nearest planetary neighbor as a planet of searing winds, violent crustal deformations and giant volcanic eruptions, One full-resolution radar image shows the Akna Montes (mountains) on the west side of the elevated smooth plateau Lakshmi Planum (plains), which were formed by extensive volcanic eruptions and is surrounded by mountains. The image also shows an impact crater named Wanda which appears to have been made after the Akna mountains formed. The western ridge of the crater has collapsed onto its floor. Another image shows the Danu mountains to the south of the Lakshmi Planum and a circular volcanic dome 12 miles in diameter. The southern part of the dome has been deformed by the tectonic processes which created the mountains. "These mountains appear to have been formed by uplift resulting from compression," Saunders said. "All around the high plains, the volcanic plains surface is folded and faulted at the base of the mountains." The two black & white images to illustrate this release, numbers 91-H-746 and 91-H-747, are available to news media representatives by calling the NASA Broadcast and Audio-Visual Branch at 202/453-8375. - end - ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 15:44:22.27 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/27/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 15:43:09.44 Date: Fri, 27 Sep 1991 13:39:47 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927133947.21000695@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/27/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:196 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/27/91 Date: 27 SEP 91 16:54:37 Message-ID:<1991Sep27.165135.28881@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 27, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, the second of the four planned optical navigation images will be shuttered this evening and stored on the tape recorder for playback over the next 2 weeks; playback of the image will begin tomorrow. Also tomorrow, an imaging instrument (SSI) memory readout will be performed to verify the instrument's health status. No spacecraft activity is planned on Sunday. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 15:45:43.69 To: deen@utd750.utdallas.edu CC: Subj: Magellan Update - 09/27/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 15:44:37.70 Date: Fri, 27 Sep 1991 13:41:15 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927134115.21000696@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/27/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:197 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/27/91 Date: 27 SEP 91 16:56:24 Message-ID:<1991Sep27.165320.29011@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 27, 1991 Magellan spacecraft performance continues to be excellent. All starcals (star calibrations) and desats (desaturations) yesterday were successful. All spacecraft temperatures remain in the acceptable range, essentially unchanged in the past two days. Yesterday, spacecraft controllers sent up the normal updates to the mapping quaterion polynomials and radar control parameters. No commanding is planned from today through Monday. Magellan has now completed 2662 mapping orbits of Venus. In the present mapping mode, each orbit returns an image swath which extends from just below the equator to the South Pole. Each swath is about 14 miles wide and 6000 miles long. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 15:49:37.74 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update #2 - 09/27/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 15:48:59.53 Date: Fri, 27 Sep 1991 13:45:37 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927134537.2100069a@MIPL5.JPL.NASA.GOV> Subject: Galileo Update #2 - 09/27/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:198 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update #2 - 09/27/91 Date: 27 SEP 91 18:50:07 Message-ID:<1991Sep27.184704.967@elroy.jpl.nasa.gov> Forwarded from Neal Ausman, Galileo Mission Director GALILEO MISSION DIRECTOR STATUS REPORT POST-LAUNCH September 20 - 26, 1991 SPACECRAFT 1. The tape recorder (DMS) playback of the Gaspra optical navigation image continued this week with DMS memory readout activities on September 23, 24, 25 and 26. Full retrieval of the first of the four planned optical navigation images is going very well; full return is expected by September 27; therefore the planned contingency playback window will not be needed. The next optical navigation image will be shuttered on September 27 and stored on the DMS for playback over the next two plus weeks. 2. A special spacecraft wobble identification activity was commanded on September 20. The wobble information was collected from gyro data in both the X and Y axes. This activity was performed in response to the unexpected Y-axis wobble change (approximately 1 mrad) observed in the WOBEST measurement on September 13; no change was detected in the X-axis from the previous wobble. The cause for the unexpected Y-axis change is being investigated. 3. Another imaging subsystem (SSI) memory readout was performed on September 23 to verify the imaging instrument's health status. 4. A NO-OP command was sent of September 23 to reset the command loss timer to 288 hours, its planned value for this mission phase. 5. A cruise science memory readout for the MAG (Magnetometer) and EUV (Extreme Ultraviolet Spectrometer) instruments was completed on September 24. 6. An RPM (Retro Propulsion Module) thruster maintenance "flushing" activity was completed on September 25. Only 10 of 12 thrusters were "flushed" during this exercise; the P-thrusters were not "flushed" since they are used periodically to perform Earth point activities. 7. Several (12) Delayed Action Commands (DACs) were sent on September 24; all were attitude control pointing deadband commands to increase the pointing deadband to 100 mrad to preclude a possible command constraint violation if an autonomous HGA (High Gain Antenna) correction activity were to take place at the same time the thruster PA issued a scan platform safe command. 8. The AC/DC bus imbalance measurements exhibited some change. The AC measurement dropped about 8 DN and now reads near 43.7 volts; the DC measurement dropped 2 Dn and now read 15.1 volts. All other power telemetry and subsystem telemetry are normal. 9. The Spacecraft status as of end of day September 26 was as follows: a) System Power Margin - 70 watts b) Spin Configuration - Dual-Spin c) Spin Rate/Sensor - 3.15 rpm/star scanner d) Spacecraft Attitude is Earth pointed; Sun Point Angle - approximately 26.4 degrees (sun lagging) plus or minus 0.3 degree e) Downlink telemetry rate/antenna-40 bps (coded)/LGA-1 f) General Thermal Control - all temperatures within acceptable range g) RPM Tank Pressures - all within acceptable range h) Orbiter Science- all powered on except PLS, PPR and NIMS i) Probe/RRH - powered off, temperatures within acceptable range j) CMD Loss Timer Setting - 288 hours Time To Initiation - 240 hours UPLINK GENERATION/COMMAND REVIEW AND APPROVAL: None GDS (Ground Data Systems): 1. Unit testing has been successfully completed on the Multimission Image Processing Lab (MIPL) software Reed Solomon decoder. The software decoder will provide a backup to the hardware decoder used to process optical navigation pictures for Gaspra. Data from OPNAV 1 passed through both the hardware and software decoders during unit testing yielded identical outputs. System and integration testing has now started with delivery scheduled for October 9th. Agreement was reached with the Voyager Project for the use of their decoder interface card during critical periods in the event the software decoder implementation does not work. 2. The DSN (Deep Space Network) successfully completed the Gaspra Mission Readiness Test (MRT) with DSS-63 (Madrid 70 meter station) on September 23rd. Project test personnel are continuing to work with the DSN to eliminate telemetry time tagging variations on the Type B telemetry strings when used for Galileo support. Although this will not affect Gaspra support, the variations need to be eliminated to permit the Project to periodically calibrate the drift in the spacecraft clock. TRAJECTORY As of noon Thursday, September 26, 1991, the Galileo Spacecraft status was as follows: Distance from Earth 215,385,600 miles Distance from Sun 187,856,500 miles (2.12 AU) Heliocentric Speed 37,070 miles per hour Distance from Gaspra 14,367,680 miles Round Trip Light Time 38 minutes, 22 seconds SPECIAL TOPICS 1. As of September 26, 1991, a total of 5828 real-time commands have been transmitted to Galileo. Of these, 1916 have been pre-planned in the sequence design and 3912 were not. In the past week, 38 real time commands were transmitted; of these one was pre-planned. In addition 1903 mini-sequence commands have been transmitted since March 1991. Major commanding activities this week included resetting the command loss timer, widening the pointing deadband and reconfiguring the radio subsystem to collect ranging navigation data. 2. At beginning of the DSS-63 pass on September 23, two unexpected CDS (Command Data Subsystem) lock changes were observed. This is the 11th occurrence of this event. The spacecraft telemetry signature was identical to the previous 10 events. As on previous occasions, there was no evidence that a command was received or issued by the CDS; all planned commands were properly processed by the CDS. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 15:57:43.24 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-155/UARS RESULTS Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 15:56:36.67 Date: Fri, 27 Sep 1991 13:53:12 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927135312.210006a1@MIPL5.JPL.NASA.GOV> Subject: HQ 91-155/UARS RESULTS To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:267 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-155/UARS RESULTS Date: Thu, 26 Sep 1991 13:43:00 GMT Message-ID: FOR IMMEDIATE Brian Dunbar Headquarters, Washington, D.C. September 26, 1991 (Phone: 202/453-1547) Jessie Katz Goddard Space Flight Center, Greenbelt. Md. (Phone: 301/286-5566) RELEASE: 91-155 NEW RESEARCH SATELLITE PROVIDES GLOBAL OZONE MAPING DATA Preliminary data from NASA's Upper Atmosphere Research Satellite (UARS) are providing scientists with a three-dimensional, global map of ozone in the upper atmosphere and a global view of chlorine monoxide, a key chemical in ozone depletion. The results appear to confirm existing aircraft and ground-based research about the chemical processes that lead to ozone depletion. These first data were obtained from UARS' Microwave Limb Sounder, one of 10 instruments aboard the new research satellite deployed by Space Shuttle Discovery on Sept. 15. The satellite's orbit, 363 miles above the Earth at a 57-degree inclination to Earth's Equator, provides greatly extended geographic ozone coverage. UARS' side-mounted instruments provide a three-dimensional view of the developing ozone "hole" over Antarctica. As the first major element of NASA's new Mission to Planet Earth program, UARS has begun the global-scale study of the Earth as a complete environmental system. UARS will provide scientists with the first comprehensive data set on the chemistry, wind directions and energetics of Earth's upper atmosphere. UARS's main focuses are the processes involved in ozone depletion. Ozone, a molecule made up of three atoms of oxygen, blocks the Sun's ultraviolet radiation that poses a health risk to humans and endangers food crops. - more - - 2 - Previous studies using aircraft and ground-based instruments have indicated that reactive chlorine atoms, freed from chemicals such as chlorofluorocarbons, destroy ozone in the upper atmosphere or stratosphere. Chlorine atoms capture oxygen atoms from ozone, creating a molecule of chlorine monoxide and a molecule of oxygen, which does not block ultraviolet light. The chlorine monoxide atom then is broken up, freeing the chlorine atom. Repetition of the cycle leads to the destruction of thousands of ozone molecules by a single chlorine atom. The Microwave Limb Sounder instrument aboard UARS continuously measures ozone, chlorine monoxide, temperature and water vapor. It is a collaborative effort with the United Kingdom. Dr. Joe Waters of NASA's Jet Propulsion Laboratory, Pasadena, Calif., and Dr. Gordon Peckham of Herrot Watt University, Edinburgh, Scotland, are the instrument's principal investigators. UARS is still undergoing testing and is scheduled to begin full science operations in mid-October. Eight other instruments have been activated and spacecraft controllers report verification and testing have been successful. UARS is managed by the Goddard Space Flight Center, Greenbelt, Md., for NASA Headquarters Office of Space Science and Applications, Washington, D.C. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 15:59:14.74 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-154/TSS PAYLOAD SPECIALIST Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 15:58:48.98 Date: Fri, 27 Sep 1991 13:55:28 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927135528.210006a5@MIPL5.JPL.NASA.GOV> Subject: HQ 91-154/TSS PAYLOAD SPECIALIST To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:268 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-154/TSS PAYLOAD SPECIALIST Date: Thu, 26 Sep 1991 12:49:00 GMT Message-ID: Don Savage Headquarters, Washington, D.C. September 26, 1991 (Phone: 202/453-8400) Debra J. Rahn Headquarters, Washington, D.C. (Phone: 202/453-8455) RELEASE: 91-154 PAYLOAD SPECIALISTS FOR TETHERED SATELLITE MISSION NAMED Dr. Franco Malerba has been named Prime Payload Specialist and Dr. Umberto Guidoni has been named Backup Payload Specialist for the Tethered Satellite System (TSS-1) mission scheduled for flight aboard the Space Shuttle Atlantis next Summer. The Tethered Satellite System is a cooperative mission between NASA and Italy's space agency, Agenzia Spaziale Italiana (ASI). As Prime Payload Specialist, Dr. Malerba will be the first Italian citizen to fly in space. Malerba was born in Genoa, Italy, in 1946, and obtained his doctorate in physics at the University of Genoa in 1974. He joined ASI in 1989 after preliminary selection as an Italian candidate for TSS-1 Payload Specialist. During the mission he will work with the mission specialists in operating the Tethered Satellite System aboard the Shuttle orbiter and carry out other TSS science investigations during the 7-day mission. Guidoni was born in Rome in 1954 and obtained his doctorate in physics at the University of Rome in 1978. Since 1984 he has been involved with the TSS program as a co-investigator of one of the Italian experiments on the satellite, and in 1989 he joined ASI after preliminary selection as a candidate for TSS-1 Payload Specialist. As backup, he will be ready to participate in the TSS-1 flight as Prime Payload Specialist if Malerba is unable to fulfill his duties. During the mission he will serve in a key science team role at NASA's Marshall Space Flight Center, Huntsville, Ala.. - more - - 2 - The Tethered Satellite System consists of a satellite attached to the Shuttle orbiter by a conducting cable, or tether, which is wound on a motorized reel assembly in the Shuttle's payload bay. The ASI is developing the satellite and NASA is developing the deployer mechanism. Both are developing the scientific complement. During the mission, the satellite will be reeled out on the tether to 12 miles above the Shuttle's orbit to verify the system design, demonstrate the capability to safely deploy, control and retrieve the satellite and to conduct science investigations. Twelve scientific investigations have been selected for TSS-1, including studies of the electrodynamic processes taking place in the Earth's upper atmosphere and of the dynamic forces in a tethered satellite system. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 16:15:50.20 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: HQ 91-156/VENUS LIGHTNING Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 16:14:39.40 Date: Fri, 27 Sep 1991 14:11:16 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927141116.210006b4@MIPL5.JPL.NASA.GOV> Subject: HQ 91-156/VENUS LIGHTNING To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 nasa.nasamail.p:271 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-156/VENUS LIGHTNING Date: Thu, 26 Sep 1991 20:06:00 GMT Message-ID: FOR IMMEDIATE RELEASE Paula Cleggett Headquarters, Washington, D.C. September 26, 1991 (Phone: 202/453-1549) James H. Wilson Jet Propulsion Laboratory, Pasadena, Calif. (Phone: 818/354-5011) RELEASE: 91-156 LIGHTNING STORMS DETECTED IN VENUS ATMOSPHERE Scientists who studied the planet Venus from data received from the interplanetary spacecraft Galileo have greatly increased confidence that there are lightning storms in that planet's atmosphere. The science team used the spacecraft's plasma wave instrument to detect electromagnetic equivalents of thunderclaps most probably generated by lightning bolts deep in the atmosphere. Galileo flew by Venus at a distance of about 10,000 miles in February 1990. Pictures and other observations of the planet were recorded and then transmitted to Earth in November 1990, according to plan. Scientists have been analyzing the data since then. Galileo's primary scientific objective is to conduct close and extended observations of Jupiter, its atmosphere and its moons, beginning in December 1995. Launched in 1989, it was programmed to fly by Venus and Earth for gravity assists to help it reach Jupiter. It flew by Earth in December 1990 and is currently in the Asteroid Belt where it will obtain a close look at the asteroid Gaspra this October before returning for a second and final Earth flyby in December 1992. Science magazine published this week a collection of eight scientific articles on Galileo's Venus observations. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 16:17:12.74 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: HQ N91-67/NEW MAGELLAN PHOTOS Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 16:16:19.26 Date: Fri, 27 Sep 1991 14:11:50 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927141150.210006b6@MIPL5.JPL.NASA.GOV> Subject: HQ N91-67/NEW MAGELLAN PHOTOS To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 nasa.nasamail.p:273 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ N91-67/NEW MAGELLAN PHOTOS Date: Fri, 27 Sep 1991 13:41:00 GMT Message-ID: Paula Cleggett-Haleim Headquarters, Washington, D.C. September 27, 1991 (Phone: 202/453-1547) Jim Doyle Jet Propulsion Laboratory, Pasadena, Calif. (Phone: 818/354-5011) N91-67 NOTE TO EDITORS: NEW MAGELLAN IMAGES RELEASED Two new images released by NASA today show that Venus is even more torn by tectonic forces than had been thought before the Magellan mapping began. According to Dr. Steve Saunders, Magellan Project Scientist at NASA's Jet Propulsion Laboratory, Pasadena, Calif., the planet's dynamic nature is becoming increasingly evident with more than 90 percent of Venus now mapped by the Magellan spacecraft over the past 377 days. He describes Earth's nearest planetary neighbor as a planet of searing winds, violent crustal deformations and giant volcanic eruptions, One full-resolution radar image shows the Akna Montes (mountains) on the west side of the elevated smooth plateau Lakshmi Planum (plains), which were formed by extensive volcanic eruptions and is surrounded by mountains. The image also shows an impact crater named Wanda which appears to have been made after the Akna mountains formed. The western ridge of the crater has collapsed onto its floor. Another image shows the Danu mountains to the south of the Lakshmi Planum and a circular volcanic dome 12 miles in diameter. The southern part of the dome has been deformed by the tectonic processes which created the mountains. "These mountains appear to have been formed by uplift resulting from compression," Saunders said. "All around the high plains, the volcanic plains surface is folded and faulted at the base of the mountains." The two black & white images to illustrate this release, numbers 91-H-746 and 91-H-747, are available to news media representatives by calling the NASA Broadcast and Audio-Visual Branch at 202/453-8375. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 16:20:22.84 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-157/MINORITY AWARDS Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 16:19:16.89 Date: Fri, 27 Sep 1991 14:15:53 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927141553.210006ba@MIPL5.JPL.NASA.GOV> Subject: HQ 91-157/MINORITY AWARDS To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:275 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-157/MINORITY AWARDS Date: Fri, 27 Sep 1991 17:07:00 GMT Message-ID: FOR RELEASE AT 2 P.M. ET Ken Atchison Headquarters, Washington, D.C. September 27, 1991 (Phone: 202/453-8400) 2 P.M. EDT RELEASE: 91-157 MINORITY CONTRACTOR AND SUBCONTRACTOR OF THE YEAR AWARDED Administrator Richard H. Truly today presented the Minority Contractor and Subcontractor of The Year Awards in recognition of minority businesses that made outstanding contributions to NASA. Consolidated Industries, Inc., of Huntsville, Ala., received the minority contractor award, and Network Solutions Inc., of Herndon, Va., received the minority subcontractor award. These excellence awards were presented as a part of Minority Enterprise Development (MED) Week established by Presidential Proclamation in 1982 to give recognition to the nation's minority business owners and their outstanding contributions to the U.S. economy. This year, MED Week was celebrated from Sept. 24 through 27. NASA has traditionally recognized a minority contractor, but this year expanded the program to recognize a minority subcontractor. Consolidated Industries, Inc., nominated by NASA's George C. Marshall Space Flight Center, Huntsville, was chosen from a group of seven prominent minority businesses. The company was recognized for its valuable contributions to the operations and maintenance of the facilities of the Marshall Propulsion Laboratory where Consolidated Industries, Inc., provided quality and responsive technical support, ensuring the integrity of test results and demonstrating success in dealing with the potential hazards in the propulsion test environment. Network Solutions Inc., was nominated by IBM Federal Sector Division, Houston, and selected from 11 outstanding minority firms. The company was recognized for providing systems software maintenance and integration support to the entire institutional computing facilities at NASA's Johnson Space Center in Houston. Throughout the history of this subcontract between Network Solutions Inc. and IBM, there has been a high degree of cooperation between the two companies at all levels. - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 19:22:16.46 To: deen@utd750.utdallas.edu CC: Subj: Position Announcement - Chair, Physics Department Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 19:21:51.86 Date: Fri, 27 Sep 1991 17:18:31 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927171831.2100082b@MIPL5.JPL.NASA.GOV> Subject: Position Announcement - Chair, Physics Department To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 sci.astro:11790 From: toddo@envoy.physics.unr.edu (Tod Colegrove) Subject:Position Announcement - Chair, Physics Department Date: 27 Sep 91 17:57:01 GMT Message-ID:<1462@equinox.unr.edu> ....................................................................... Posting this as a favor. Followup e-mail to: altick@physics.unr.edu ...................................................................... The Physics Department at the University of Nevada, Reno is beginning a major expansion which will entail adding perhaps five new faculty in the next several years. The first hire in this program will be the Physics Chair. The purpose of this letter is to ask you to help us find the most qualified candidate.I have enclosed an advertisement which will soon appear in Physics Today. We have programs in experimental heavy ion and electron scattering, and atomic and molecular theory that are firmly established and productive. However, we wish to form a new research group in a distinct area. We are open as to what this area should be, but we want a program of the highest quality. The University administration is very supportive and will supply the necessary resources. The University of Nevada in Reno is the original land grant institution in the state. It has been in its present location for more than one hundred years. The University has eleven Colleges and Schools, some twenty five Doctoral programs, and a growing enrollment approaching twelve thousand students. The State of Nevada is currently the fastest growing state in the Union. Reno,the second largest city with a metropolitan population of 240,000, is situated on the high desert with the beautiful Sierra Nevada mountain range just to the west within view. Opportunity for outdoor recreation abounds. The San Francisco area with major academic centers, The University of California at Berkeley and Stanford University is within a four to five hour drive over interstate highway. I would be grateful if you would bring this opening to the attention of any appropriate candidates. Thank you for your help. Sincerely yours, P. L. Altick Chair, Search Committee (Note: the following is in LaTeX format) --------------------------------cut here--------------------------------- \begin{center} {\Large\bf University of Nevada, Reno // Chair, Department of Physics //} \end{center} \vspace{0.5in} The physics department is seeking an accomplished scientist for the position of Chair, beginning in August,1992. This position will be the first hire in a major expansion planned for the next several years. The Department currently has an active program in Chemical Physics involving, with the Chemistry Department, eleven faculty. Established areas of research include electron and heavy particle collision physics and theory. Preference will be given to a candidate who will initiate and develop an internationally recognized experimental program in a different area. Additional positions and start-up funds will be available for this purpose. The Department Chair is the chief administrative officer in the Department and oversees all educational and research activities. Candidates should submit a curriculum vitae, a proposed research program, and arrange for at least three letters of reference to be sent to: \vspace{0.2in} \begin{center} Professor P. L. Altick, Chair, Faculty Search Committee // Department of Physics/220 // University of Nevada, Reno,NV 89557-0058 // (702) 784-6792 // \end{center} \vspace{0.2in} Applications received by November l, 1991 will receive full consideration. However, applications will be accepted until the position is filled. UNR is an EO/AA employer. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 27-SEP-1991 19:22:43.80 To: deen@utd750.utdallas.edu CC: Subj: Re: New Mars Mini-Rover Successfully Tested Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 27-SEP-1991 19:22:22.72 Date: Fri, 27 Sep 1991 17:19:01 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910927171901.2100082d@MIPL5.JPL.NASA.GOV> Subject: Re: New Mars Mini-Rover Successfully Tested To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 sci.astro:11795 From: gat@forsight.jpl.nasa.gov (Erann Gat) Subject:Re: New Mars Mini-Rover Successfully Tested Date: Fri, 27 Sep 91 21:50:16 GMT Message-ID:<1991Sep27.215016.4193@elroy.jpl.nasa.gov> In article smithw@hamblin.math.byu.edu (Dr. William V. Smith) writes: >gat@forsight.jpl.nasa.gov (Erann Gat) writes: > >What kind of motors?? Who makes 'em? How much do they cost? Operating specs? The steering motors are Futaba servo motors, the sort one uses in model airplanes and radio-controlled cars. I'm not sure about the drive motors, but I believe they are pretty vanilla electric motors geared down to run about 10 RPM, so they're pretty torquey. E. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 30-SEP-1991 18:44:50.87 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: More Magellan GIF Images Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:44:26.09 Date: Mon, 30 Sep 1991 16:41:02 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910930164102.210006af@MIPL5.JPL.NASA.GOV> Subject: More Magellan GIF Images To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 sci.astro:11844 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:More Magellan GIF Images Date: 30 SEP 91 21:53:29 Message-ID:<1991Sep30.215108.22254@elroy.jpl.nasa.gov> ======================= MAGELLAN GIF IMAGES September 30, 1991 ======================= I've placed 10 more Magellan images in GIF format at the Ames SPACE archives. The images can be retrieved via anonymous ftp from ames.arc.nasa.gov [128.102.18.3] and are in the pub/SPACE/GIF directory. These images were obtained from the newly released Magellan CDROMs and converted to GIF format, and are in the public domain and can be freely distributed. Each of the image is a mosaic, meaning they consist of several orbits of data that has been pieced together into a single image. The file naming convention used on the image is such that the filename indicates the latititude and longitude of the center of the image. For example: f15n340.gif is centered at 15 north latitude, 340 longitude. From Magellan CDROM #5: f00n357.GIF 178810 bytes f05n357.GIF 187561 bytes f05s357.GIF 182150 bytes f20n351.GIF 191409 bytes f20s357.GIF 187361 bytes f25s357.GIF 207659 bytes f30s357.GIF 182826 bytes f35s357.GIF 173046 bytes f60s005.GIF 182450 bytes f65s001.GIF 175499 bytes ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 30-SEP-1991 18:47:27.54 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 09/30/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:47:06.41 Date: Mon, 30 Sep 1991 16:43:43 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910930164343.21000cb8@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 09/30/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:199 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 09/30/91 Date: 30 SEP 91 19:04:47 Message-ID:<1991Sep30.190155.17909@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT September 30, 199 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. The second of the four planned optical navigation images is currently being playedback from the spacecraft's tape recorder; about 10% of the image has been returned. Today and tomorrow, spacecraft activities will include continued playback of the optical navigation image. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 30-SEP-1991 18:48:59.94 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-158/TRULY BUDGET STATEMENT Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:48:36.23 Date: Mon, 30 Sep 1991 16:45:06 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910930164506.21000cbb@MIPL5.JPL.NASA.GOV> Subject: HQ 91-158/TRULY BUDGET STATEMENT To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:276 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-158/TRULY BUDGET STATEMENT Date: Fri, 27 Sep 1991 17:55:00 GMT Message-ID: FOR IMMEDIATE RELEASE Don Savage Headquarters, Washington, D.C. September 27, 1991 (Phone: 202/453-8400) RELEASE: 91-158 NASA ADMINISTRATOR COMMENTS ON FY92 BUDGET Richard H. Truly, Administrator of NASA, issued this statement today following conference committee action on the 1992 appropriation. "Yesterday's action of the House/Senate Conference on the FY 1992 NASA appropriation leaves the people of NASA with mixed feelings. On the one hand, we are tremendously grateful to those many members on both sides of the aisle who have worked so hard on our behalf in this extremely difficult environment and are particularly pleased with the funding for Space Station Freedom and the very significant percentage increase for space science. Nevertheless, we are disappointed that, for the first time in many years, the total NASA appropriation does not keep up with inflation. In any event, we will be working very hard to continue to use the dollars available to provide the American people with a world-class civilian space and aeronautics research program." - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 30-SEP-1991 18:52:03.98 To: deen@utd750.utdallas.edu CC: Subj: HQ N91-68/Image of Sun Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 18:51:24.14 Date: Mon, 30 Sep 1991 16:47:54 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910930164754.21000cc0@MIPL5.JPL.NASA.GOV> Subject: HQ N91-68/Image of Sun To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:278 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ N91-68/Image of Sun Date: Mon, 30 Sep 1991 13:28:00 GMT Message-ID: for immediate release Michael Braukus Headquarters, Washington, D.C. September 30, 1991 (Phone: 202/453-1549) EDITORS NOTE: N91-68 SOFT X-RAY TELESCOPE TAKES FIRST IMAGE OF SUN The Soft X-ray Telescope, one of four instruments on the Japanese Solar-A spacecraft launched Aug. 30, 1991 from Japan's Kagoshima Space Center, has taken its first soft X-ray image of the Sun. A prime purpose of the Solar-A mission is to study high energy phenomena in solar flares during the current period of maximum solar activity. The spacecraft was named Yohkoh after successfully achieving orbit. Yohkoh means sun-ray or sun-beam in Japanese. The Soft X-ray Telescope is the product of international collaboration between the U.S. and Japan. The photograph shows the intricate structures of the X-ray corona, which extend far above the sun's surface. The sun's magnetic field constrains the hot coronal gases along loop-like structures in so-called "magnetic bottles". Brightness of the loops reflects temperature and density of gasses they contain. The photograph of the X-ray image is available to the media by calling 202/453-8375 Color: 91-HC-646 B&W: 91-H-750 From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 30-SEP-1991 19:01:48.13 To: deen@utd750.utdallas.edu CC: Subj: Daily News in Brief 9/30/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 30-SEP-1991 19:01:21.41 Date: Mon, 30 Sep 1991 16:57:57 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <910930165757.21000cca@MIPL5.JPL.NASA.GOV> Subject: Daily News in Brief 9/30/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:282 From: credmond@nasamail.nasa.gov (CHARLES E. REDMOND) Subject:Daily News in Brief 9/30/91 Date: Mon, 30 Sep 1991 20:46:00 GMT Message-ID: This is DAILY NEWS IN BRIEF for 9/30/91 It is intended for internal agency use only. --------------------------------------------------- Daily News in Brief is an abstract of media stories about the Space Program and other related items. --------------------------------------------------- . . . What the Fourth Estate is saying about air & space . . . Washington Post -- 9/30/91 "Astronomy: Shedding Light on Two Mysteries" "Two cosmic mysteries got a little more down-to-Earth last week." The Post reports that it has been 20 years since a background crackle of X-rays was discovered surrounding us and that ever since then astronomers have been trying to locate the source. The paper reports that a team of British and U.S. researchers, using data from the Rosat Satellite, report that much, and perhaps even all, of the cosmic background X-ray radiation comes from quasars. The article says that the researchers found 39 X-ray emitting quasars in only one-third of one square degree of sky, and that if that distribution is typical, it would be enough to account for almost all of the X-ray background found at key frequencies. The story also reports that researchers using data from the Galileo spacecraft's flyby of Venus last year have discovered that lightning probably exists on the planet. The paper says the probe's plasma wave detector picked up nine impulses from the Venusian atmosphere and says scientists concluded that lightning is the only known source for signals of the type received. -------------------------------------------------------- This concludes Daily News in Brief. Comments and suggestions are appreciated as is news from your area which you think should be included here, please fax a copy of the story to 202/755-3605 (FTS 755-3605) or contact Beth Schmid, Les Reinertson or Charles Redmond at 202/453-8425 (FTS 453-8425) or NASAmail: ESCHMID, LREINERTSON, EDITOR or CREDMOND. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 18:53:39.46 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Yet More Magellan Images Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 18:53:06.71 Date: Thu, 3 Oct 1991 16:49:33 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003164933.22200223@MIPL5.JPL.NASA.GOV> Subject: Yet More Magellan Images To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.general:46 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Yet More Magellan Images Date: 2 OCT 91 05:21:05 Message-ID:<1991Oct2.051835.1462@elroy.jpl.nasa.gov> =================== MAGELLAN IMAGES October 1, 1991 =================== The Magellan project released two new images last week (refer to press release N91-67), and I've placed the two images at the Ames SPACE archives. These new images are in VICAR format and are obtainable via anonymous ftp from ames.arc.nasa.gov (128.102.18.3) in the pub/SPACE/VICAR directory as files akna.img and danu.img. akna.img 1,194,270 bytes danu.img 1,002,000 bytes All of the VICAR images have a corresponding caption files (with a .txt extension) which contains detailed descriptions of the image. I've appended the caption files to the end of this posting. Make sure you are in binary mode when transferring the image files, and in ASCII mode when transferring the txt files. I've also converted the image into GIF format, and they can be found in the pub/SPACE/GIF directory. The akna1.gif file is a closeup of the crater called Wanda. akna.gif 160,149 bytes akna1.gif 360,726 bytes danu.gif 220,139 bytes The VICAR images can be viewed on an IBM PC computer with the IMDISP program stored in a zip file called imdisp74.zip, located in the pub/SPACE/SOFTWARE directory, at the same Ames site. IMDISP is the same program distributed with the Voyager and Magellan CDROMs. Since I am one of the programmers for IMDISP, I would welcome any feedback on IMDISP, including any problems encountered with its use or suggestions on improving the program. I anticipate version 7.7 of IMDISP being released soon, so the filename may be updated to imdisp77.zip at any time. ----------------------------------------------------------------------------- akna.txt akna.img shows a portion of the Akna Mountains, which form the western edge of Lakshmi Planum. The crater Wanda has a diameter of 22 km. While the crater does not seem deformed by tectonic activity, material from adjacent mountain areas appear to have collapsed into it. The ridge of mountains to the west of Wanda is about 8 km in width. The image is about 200 km long and 125 km wide. It is centered at 71.5N lat., 324 east long. ----------------------------------------------------------------------------- danu.txt danu.img is a section of the Danu Mountains, which bound Lakshmi Planum to the south. Because of the steep slopes, local relief in this area (2-3 km) and radar geometry, the fault-bounded troughs appear to zig-zag through the area while they are likely straight when viewed from above. The large volcanic dome is 20 km in diameter and shows deformation and faulting where it has been affected by the forces that created the Danu Mountains. This image is 75 km on a side and is centered at 60N lat., 324.5 east long. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 18:55:47.70 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 10/01/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 18:55:22.89 Date: Thu, 3 Oct 1991 16:51:51 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165151.22200224@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 10/01/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:200 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 10/01/91 Date: 1 OCT 91 20:47:51 Message-ID:<1991Oct1.204442.22311@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT October 1, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, playback of the second of the planned four optical navigation images will be continued. Tomorrow, the image playback activity will continue and a USO (Ultra Stable Oscillator) test will be performed. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 18:56:15.43 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 10/01/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 18:55:40.29 Date: Thu, 3 Oct 1991 16:52:09 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165209.22200225@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 10/01/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:201 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 10/01/91 Date: 1 OCT 91 22:58:31 Message-ID:<1991Oct1.225526.25453@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT October 1, 1991 The Magellan spacecraft is performing nominally. All starcals (star calibrations) yesterday were successful, with only one missed star. The spacecraft continues to operate under the M1263 command sequence which includes two 22-minute cooling periods in each orbit, and offpointing of the solar panels for thermal control. Last night there was another spurious shutoff (SSO) of the high power transmitter, TWTA-A. This is the 15th SSO. The on-board fault protection restored normal operation very quickly and no radar data was lost. Later today controllers will begin reconfiguring some of the spacecraft parameters in preparation for the uplink of command sequence M1277 on Friday. This sequence will include a radio science experiment to be performed on Saturday, Oct. 5. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 18:56:38.72 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 09/30/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 18:56:05.95 Date: Thu, 3 Oct 1991 16:52:33 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165233.22200226@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 09/30/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:202 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 09/30/91 Date: 1 OCT 91 22:57:01 Message-ID:<1991Oct1.225355.25282@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT September 30, 1991 Magellan spacecraft performance continues to be excellent. One starcal (star calibration) was unsuccessful over the weekend. The star scanner background filter activity has also increased. All spacecraft temperatures remain in the acceptable range, rising less than a degree on the Bay 7. No commands were sent to the spacecraft over the weekend. Magellan has now completed 2686 mapping orbits of Venus. In the present mapping mode, each orbit returns an image swath which extends from just below the equator to the South Pole. Each swath is about 14 miles wide and 6000 miles long. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 18:58:18.28 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 10/02/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 18:57:55.59 Date: Thu, 3 Oct 1991 16:54:24 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165424.22200227@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 10/02/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:203 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 10/02/91 Date: 2 OCT 91 19:42:23 Message-ID:<1991Oct2.193915.21501@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 GALILEO MISSION STATUS October 2, 1991 The Galileo spacecraft is more than 223 million miles from Earth, making the round-trip communication time about 40 minutes. It is more than 199 million miles from the Sun, and 11.75 million miles (straight line) from Gaspra. Speed in orbit is 36,662 miles per hour. The spacecraft is operating normally in the dual-spin mode, with the spinning section rotating at 3.15 rpm and the spin axis pointed toward the Earth, approximately 25 degrees away from the Sun. It is transmitting coded telemetry at 40 bits per second over the low-gain antenna. Galileo's second optical navigation image, shuttered Friday night, is being played back through an onboard computer memory in installments. By the end of today's playback, about 20% of this image should have been received through the Deep Space Network by the navigation team. The flight team members are preparing for and testing various special activities needed in the Gaspra encounter, and are also preparing Galileo's next trajectory correction maneuver, planned for October 9, a week from today. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 18:59:13.30 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 10/02/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 18:58:50.35 Date: Thu, 3 Oct 1991 16:55:19 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165519.22200228@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 10/02/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:204 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 10/02/91 Date: 2 OCT 91 19:43:38 Message-ID:<1991Oct2.194042.21622@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 MAGELLAN STATUS REPORT October 2, 1991 The Magellan spacecraft is performing normally. All star calibrations Tuesday were successful. Temperatures have risen slightly, as expected, in this period. The spacecraft continues to operate under a command sequence which includes two 22-minute cooling periods in each orbit, and offpointing of the solar panels for thermal control. Controllers are preparing for the uplink of a new command sequence on Friday. The sequence will include a radar science experiment to be performed on Saturday, October 5. Earlier this week, there was a spurious shutoff of the high power transmitter. It was the 15th such shutoff. The on-board fault protection restored normal operation very quickly and no radar data was lost. In the present mapping mode, with two hide periods for thermal control, each orbit returns an image which extends from just south of the equator to the south pole. Each swath is about 14 miles wide and 6,000 miles long. _____ ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:02:05.62 To: deen@utd750.utdallas.edu CC: Subj: Hubble Space Telescope Monthly Status Report Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:01:42.10 Date: Thu, 3 Oct 1991 16:58:06 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165806.2220022b@MIPL5.JPL.NASA.GOV> Subject: Hubble Space Telescope Monthly Status Report To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:205 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Hubble Space Telescope Monthly Status Report Date: 2 OCT 91 22:30:00 Message-ID:<1991Oct2.222659.25999@elroy.jpl.nasa.gov> Forwarded from the Spacelink BBS HST MONTHLY STATUS REPORT September, 1991 The Hubble Space Telescope (HST) continued to operate normally under four-gyro control. All scientific instruments except the Goddard High Resolution Spectrograph (GHRS) continue to produce science data. The GHRS Science Data Formatter (SDF) interface continued to exhibit periodic anomalous behavior that has resulted in data losses and program interruptions. A test scenario has been developed to exercise the SDF over varying orbital thermal conditions to characterize the problem. The testing will be able to run in parallel with other instrument programs and thereby not impinge on observational efficiency. The current efficiency is running approximately 30 per cent (ideal level is 35%) and improving as each instrument completes verification procedures and is able to define requirements better for observing parameters and timing. The scientific community is enthusiastic over the data that HST is producing, according to project officials. The latest request for proposals for Cycle Two observing (July, 1992-July, 1993) produced more approximately 500 submissions from 26 different countries. Of those submissions, eight were proposals to do research on non-proprietary data from HST's first year of operations. Planning for the 1993 servicing mission is well underway. Schedules and contracts are in place for the delivery of the Wide Field/Planetary Camera II (WF/PCII), Corrective Optics Space Telescope Axial Replacement (COSTAR), rate gyro assemblies and solar arrays. Several joint reviews were held during the month with the European Space Agency (ESA), and modifications being made to the (ESA) Solar Array II should reduce many of the causes of jitter that HST currently experiences, officials said. -END- ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:03:40.35 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 10/03/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:03:17.21 Date: Thu, 3 Oct 1991 16:59:45 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003165945.2220022e@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 10/03/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:206 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 10/03/91 Date: 3 OCT 91 19:11:33 Message-ID:<1991Oct3.190824.22790@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT October 3, 1991 The Magellan spacecraft is performing nominally. All starcals (star calibrations) and desats (desaturations of the reaction wheels) yesterday were successful. Spacecraft temperatures remain in the acceptable range. The DMS-B (Data Management Subsystem-B) tape recorder head now reaches 33.5 degrees C, and the CDS (Command Data Subsystem) peaks at 54 degrees C. Spacecraft controllers updated the Kalman gains yesterday and will perform a memory readout today to determine the exact time of the two most recent TWTA (high power transmitter) SSO's (Spurious Shutoffs). Late tomorrow they will uplink the M1277 command sequence. The new 2-week command sequence is similar to what we have been performing since early September, but uses two 25 minute cooling periods in each orbit. This shortens the radar mapping swaths to about 54% of their normal length. Mapping begins at about 6 degrees north latitude and extends to the South Pole. Magellan has now completed 2706 mapping orbits, 1030 since the start of Cycle 2. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:04:08.20 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 10/03/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:03:45.16 Date: Thu, 3 Oct 1991 17:00:07 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003170007.22200230@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 10/03/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:207 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 10/03/91 Date: 3 OCT 91 19:09:19 Message-ID:<1991Oct3.190619.22644@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT October 3, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, continued playback of the second optical navigation image will be performed. Tomorrow, continued playback of the image is planned. Also, an imaging instrument (SSI) memory readout is scheduled to verify the health status of the SSI. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:06:45.38 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update #2 - 10/03/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:06:20.76 Date: Thu, 3 Oct 1991 17:02:49 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003170249.22200233@MIPL5.JPL.NASA.GOV> Subject: Galileo Update #2 - 10/03/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:208 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update #2 - 10/03/91 Date: 3 OCT 91 22:11:26 Message-ID:<1991Oct3.220823.27025@elroy.jpl.nasa.gov> GALILEO MISSION DIRECTOR STATUS REPORT POST-LAUNCH September 27 - October 3, 1991 SPACECRAFT 1. The second of the planned four optical navigation images in support of the Gaspra encounter was taken on September 28. The image was stored on the spacecraft's tape recorder (DMS) for playback over the next two plus weeks. 2. Playback of the second optical navigation image was performed on September 28, 30 and October 1, 2 and 3 via the DMS MRO (Memory Readout) activity. Playback is proceeding well with more than 40 percent of the image retrieved; full image retrieval is expected by October 12. 3. Two imaging subsystem (SSI) memory readouts were performed on September 28 and 30. The memory readouts are done routinely to verify the health status of the SSI. 4. A NO-OP command was sent of September 30 to reset the command loss timer to 288 hours, its planned value for this mission phase. 5. A command was sent on October 1 to readout the CDS (Command Data Subsystem) attitude control alert-code buffer to determine when autonomous HGA (High Gain Antenna) pointing corrections occur. 6. The AC/DC bus imbalance measurements exhibited some change. The AC measurement increased 3 DN and now reads near 45.03 volts; the DC measurement dropped 8 DN and now reads near 14.6 volts. All other power telemetry and subsystem telemetry are normal. 7. The Spacecraft status as of end of day October 3 was as follows: a) System Power Margin - 66 watts b) Spin Configuration - Dual-Spin c) Spin Rate/Sensor - 3.15 rpm/star scanner d) Spacecraft Attitude is Earth pointed; Sun Point Angle - approximately 25 degrees (sun lagging) plus or minus 0.3 degree e) Downlink telemetry rate/antenna-40 bps (coded)/LGA-1 f) General Thermal Control - all temperatures within acceptable range g) RPM Tank Pressures - all within acceptable range h) Orbiter Science- all powered on except PLS, PPR and NIMS i) Probe/RRH - powered off, temperatures within acceptable range j) CMD Loss Timer Setting - 288 hours Time To Initiation - 210 hours GDS (Ground Data Systems): 1. The DSN (Deep Space Network) reports that all Mission Readiness Tests (MRTs) for the Gaspra encounter have been successfully completed. Project Ground Data (GDS) tests were conducted in conjunction with the MRTs to demonstrate end-to-end data system capabilities. 2. The DSN reports that the ability to recover telemetry from open loop recordings of the Galileo downlink by the DSCC Spectrum Processor (DSP) was verified by analysis of recordings by the Radio Science Team. This will be used as a backup during Gaspra closest approach to ensure collection of engineering telemetry. TRAJECTORY As of noon Thursday, October 3, 1991, the Galileo Spacecraft status was as follows: Distance from Earth 224,406,590 miles Distance from Sun 199,536,900 miles (2.14 AU) Heliocentric Speed 36,595 miles per hour Distance from Gaspra 11,315,660 miles Round Trip Light Time 40 minutes, 0 seconds SPECIAL TOPICS 1. As of October 3, 1991, a total of 5832 real-time commands have been transmitted to Galileo. Of these, 1917 have been pre-planned in the sequence design and 3915 were not. In the past week, 4 real time commands were transmitted; of these one was pre-planned. In addition 1903 mini-sequence commands have been transmitted since March 1991. Major commanding activities this week included resetting the command loss timer, and reading out the CDS attitude control alert code buffer. 2. The TCM-11 (Trajectory Correction Maneuver 11) design was approved by the Project on October 2. This maneuver consists of two burn segments, i.e., a single positive Z and a single lateral burn. The P1A thruster and L thrusters will be used. The total FV expected is about 0.35 m/sec. The maneuver is scheduled for October 9. 3. The second training exercise of the uplink process which will be required to generate "tweaks" to the scan platform pointing for Gaspra was completed this week. The test successfully demonstrated the ability to generate DAC (Delayed Action Commands) and sequence tweak updates per the required worst case timelines for Gaspra. A test report memo will be distributed documenting detailed findings and resulting actions. 4. The German Space Operations Center (GSOC) reports the Galileo GSOC Operations Plan has been signed. The Operations Plan which is part of the Galileo Space Flight Operations Plan (SFOP) details the GSOC Operations Team organization and approach to support of the Galileo Cruise Science mission phase. GSOC cruise science support will begin as early as late May 1992 pending deploy of the High Gain Antenna (HGA). ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:14:30.40 To: deen@utd750.utdallas.edu CC: Subj: Daily News in Brief 10/1/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:14:05.74 Date: Thu, 3 Oct 1991 17:10:29 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003171029.22200236@MIPL5.JPL.NASA.GOV> Subject: Daily News in Brief 10/1/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:284 From: credmond@nasamail.nasa.gov (CHARLES E. REDMOND) Subject:Daily News in Brief 10/1/91 Date: Tue, 1 Oct 1991 20:39:00 GMT Message-ID: This is DAILY NEWS IN BRIEF for 10/1/91 It is intended for internal agency use only. --------------------------------------------------- Daily News in Brief is an abstract of media stories about the Space Program and other related items. --------------------------------------------------- . . . What the Fourth Estate is saying about air & space . . . Christian Science Monitor -- 10/1/91 "Fiscal Realism at NASA" (an editorial, portions of which are abstracted herewith...) "For years, the handwriting on the wall at National Aeronautics and Space Administration headquarters has conveyed a simple message -- less is more. Fiscal reality excludes budget-hogging projects. Space scientists would prefer a variety of smaller missions to a few grandiose programs. "Senior NASA officials have finally seen the message... "NASA is bowing to the inevitable. Failures in the past half decade...highlight the risks of putting too many space effort eggs in a few baskets... "Space station Freedom should be scrapped unless a new compelling reason can be found to carry it forward." ------------------------ New York Times -- 10/1/91 "Can Mars Be Made Hospitable to Humans" By William Broad "Freezing cold and forbidding, bereft of such amenities as a breathable atmosphere, more than a million miles from Earth, Mars might nonetheless become a hot vacation spot with just a little bit of, well, terraforming." The Times says that this is the dream of a growing number of seemingly down-to-Earth scientists who ponder the possibility of using advanced technologies to make Mars' environment palatable to Earthlings. The Times quotes NASA planetary atmosphere expert, Dr. Chris McKay, as saying "a green Mars is better than a red Mars." The paper says that skeptics dismiss the goal as absurdly expensive and ethically misguided but that some scientists argue that a spare planet might be handy. The story recounts one scenario proposed whereby the thin Martian atmosphere would be seeded with man-made chemicals, trapping some of the Sun's rays in an artificially- induced greenhouse effect and causing some of the trapped heat to melt the polar ice caps, further thickening the atmosphere. The paper says these processes might take as long as several dozen to a few hundred thousand years but might be worth the wait. The paper quotes NASA biospheric research manager Mel Averner as saying "many of the great cathedrals took three or four hundred years to build. Mars terraforming might be something like that. It's not an impossible time scale." The story says that based on some preliminary work done by NASA and others, the prospects are at least worth continuing for the reason that it might lead to another planet capable of supporting human life. ------------------------ Philadelphia Inquirer -- 9/29/91 "Six Moons of Neptune Given Names" "Six moons of Neptune discovered by the Voyager 2 spacecraft in 1989 have been named after water nymphs and children and lovers of the mythological Greek sea god Poseidon, an official said Friday." The story says the planet is named after the Roman god of the sea -- known to ancient Greeks as Poseidon. The story says the names are: Naiad and Galatea, both water nymphs; Thalassa and Larissa, both lovers of Poseidon; Proteus, a sea god; and Despina, a daughter. -------------------------------------------------------- This concludes Daily News in Brief. Comments and suggestions are appreciated as is news from your area which you think should be included here, please fax a copy of the story to 202/755-3605 (FTS 755-3605) or contact Beth Schmid, Les Reinertson or Charles Redmond at 202/453-8425 (FTS 453-8425) or NASAmail: ESCHMID, LREINERTSON, EDITOR or CREDMOND. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:25:57.11 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-161/Key Appointments (resent) Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:25:33.71 Date: Thu, 3 Oct 1991 17:22:02 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003172202.2220023a@MIPL5.JPL.NASA.GOV> Subject: HQ 91-161/Key Appointments (resent) To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:291 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-161/Key Appointments (resent) Date: Thu, 3 Oct 1991 14:58:00 GMT Message-ID: for immediate release Ken Atchison Headquarters, Washington, D.C. October 3, 1991 (Phone: 202/453-8400) RELEASE: 91-161 NASA ADMINISTRATOR ANNOUNCES KEY APPOINTMENTS NASA Administrator Richard H. Truly announced today several key appointments: Arnold D. Aldrich, currently the Associate Administrator for the Office of Aeronautics, Exploration and Technology, has been selected as Associate Administrator for the recently announced Office of Space Systems Development. Aldrich brings a wealth of knowledge in managing the development of large projects as a result of his many years of experience in various assignments, including the Space Shuttle program. He was instrumental in providing the program leadership in the safe and successful return to flight of the Space Shuttle. Richard H. Petersen, Director of the Langley Research Center, Hampton, Va., will come to Headquarters to become the Associate Administrator for the Office of Aeronautics and Space Technology, formerly the Office of Aeronautics, Exploration and Technology. Petersen has been the Director of the Langley Research Center since January 1985. He also served as Deputy Center Director from 1980-85. Prior to coming to Langley, Petersen was Chief of the Aerodynamics Division at the Ames Research Center, Moffett Field, Calif. Petersen joined the National Advisory Committee for Aeronautics, NASA's predecessor agency, at Ames in 1957. William B. Lenoir, currently the Associate Administrator for the Office of Space Flight, will continue to head that Office, with its new focus on space flight operations. - more - - 2 - Charles T. Force will remain in his current assignment as the Associate Administrator for the Office of Space Communications, formerly named the Office of Space Operations. NASA field center reporting assignments will remain unchanged, and transition plans will be arranged as soon as possible. In announcing these appointments, Truly said, "NASA is extremely fortunate to have such outstanding senior executives ready to take on these challenging new responsibilities. With the creation of the Office of Space Systems Development and these key appointments, NASA will be better aligned to execute the development and operation of Space Station Freedom as well as other new capability development projects, and to focus more directly on efficient space operations. These management changes will also ensure a strong future in NASA's aeronautics research and space technology efforts." - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:29:12.31 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: HQ 91-159/X-29 RESEARCH Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:28:47.39 Date: Thu, 3 Oct 1991 17:25:16 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003172516.2220023b@MIPL5.JPL.NASA.GOV> Subject: HQ 91-159/X-29 RESEARCH To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 nasa.nasamail.p:293 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-159/X-29 RESEARCH Date: Thu, 3 Oct 1991 15:24:00 GMT Message-ID: FOR IMMEDIATE RELEASE Drucella Andersen Headquarters, Washington, D.C. October 3, 1991 (Phone: 202/453-8613) Don Haley Ames-Dryden Flight Research Facility, Edwards, Calif. (Phone: 805/258-3449) RELEASE: 91-159 NASA/USAF X-29 COMPLETES FLIGHT RESEARCH PROGRAM The X-29, an unusual research aircraft built to investigate the feasibility of a forward swept wing design, made the last flight in its high angle of attack research program on Sept. 30 at NASA's Ames-Dryden Flight Research Facility, Edwards, Calif. The X-29 is being hailed as one of the most successful "X-planes" in history. The flight test program, which began in December l984, not only recorded the most flights by an X-series aircraft (374), but also proved that multiple advanced technologies could be integrated into a single piloted research aircraft. The unusual configuration of forward swept wings coupled with movable canards reduces aerodynamic drag by up to 20 percent at transonic speeds, according to Ames-Dryden X-29 Project Manager Gary Trippensee. He also noted that the design gives pilots excellent control response up to 45 degrees angle of attack. Angle of attack is an engineering term that describes the angle of an aircraft's body and wings relative to its flight path. At angles of attack up to 45 degrees, the X-29's forward swept wing has better-than-expected control and maneuverability. Designing these same high angle of attack qualities into new high-performance aircraft could give military pilots an advantage in situations where they need greater maneuverability. NASA research pilot Steve Ishmael, who flew the X-29 on its first NASA flight, believes data from the program can be important to designers of future aircraft. - more - - 2 - "The X-29 has shown that a forward swept wing on a transonic fighter will have at least the equivalent performance of a rearward swept wing -- maybe better in certain areas -- and it can be an excellent design alternative in high performance airplanes," said Ishmael. "When an aircraft is being designed, the location of the wings influences the design of the rest of the aircraft. The forward swept wing presents a greater design latitude and there's no penalty to pay in performance." The first X-29 completed 254 research missions between Dec. 14, l984 and Dec. 8, l988 to measure the plane's performance and handling qualities. The second aircraft began flying in May 1989. It flew up to 67 degrees angle of attack to investigate handling and control characteristics. This second phase of research also evaluated the military utility of the forward swept wing-canard design. The program also studied other advanced technologies such as variable camber flaperons (combined flaps and ailerons), rear-mounted strake flaps for pitch control and an advanced flight control system to integrate control surface functions for stable flight. Proposals to build the two X-29 research aircraft were issued in l977 by the Defense Advanced Research Projects Agency and the Air Force Flight Dynamics Laboratory (now the Wright Laboratory), Wright-Patterson AFB, Ohio. Grumman Aircraft Corp., Bethpage, N.Y., won the $87 million contract in December l981. Twenty-one pilots flew the X-29s during the joint NASA-Air Force program: seven from NASA, 10 from the Air Force, one from the U.S. Navy and three from Grumman. The Air Force's Wright Laboratory managed the program. Flight research was conducted at Ames-Dryden with the participation of the Air Force Flight Test Center, Edwards AFB, and Grumman. The aircraft are in storage at Dryden for the present time. -end- NOTE TO EDITORS: Video of the X-29 flight test program is available to media representatives by calling 202/453-8594. Still photos also are available to media representatives by calling 202/453-8375. Color: 91-HC-652 B&W: 91-H-756 91-HC-653 91-H-757 From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 3-OCT-1991 19:39:22.46 To: deen@utd750.utdallas.edu CC: Subj: Compton GRO Monthly Status Report Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 3-OCT-1991 19:38:58.15 Date: Thu, 3 Oct 1991 17:35:27 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911003173527.2220023f@MIPL5.JPL.NASA.GOV> Subject: Compton GRO Monthly Status Report To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 sci.astro:11855 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Compton GRO Monthly Status Report Date: 1 OCT 91 22:23:27 Message-ID:<1991Oct1.222053.24513@elroy.jpl.nasa.gov> Forwarded from the Spacelink BBS ARTHUR HOLLY COMPTON GAMMA RAY OBSERVATORY MONTHLY STATUS REPORT September 30, 1991 NASA's Compton Gamma Ray Observatory (Compton Observatory) spacecraft and its instruments are performing well. On September 23, 1991, NASA Headquarters announced that the Gamma Ray Observatory has been renamed the Arthur Holly Compton Gamma Ray Observatory in honor of the Nobel Prize-winning American physicist, Dr. Arthur Holly Compton. Recent science results from all four instruments aboard the Compton also were detailed during the September 23 NASA Headquarters press conference. Among the most significant findings according to Dr. Neil Gehrels, project scientist, Goddard Space Flight Center, Greenbelt, MD, were the results announced by NASA Marshall Space Flight Center's Dr. Gerald Fishman. Dr. Fishman is the principal investigator for the Burst and Transient Source Experiment (BATSE). BATSE is designed to study the mysterious phenomenon of gamma-ray bursts. Before the mission, the prevailing belief was that the bursts come from neutron stars which are concentrated in the disc of the galaxy. However, BATSE has determined that they come uniformly from all directions throughout the sky, and therefore, cannot come from neutron stars. The BATSE results indicate that either the bursts come from some exotic small objects very near to our solar system or that they come from some extremely powerful distant objects located well beyond our galaxy. Goddard's Energetic Gamma Ray Experiment Telescope (EGRET) outlined the discovery of a strong gamma-ray signal from the distant quasar 3C279. Goddard's Dr. Carl Fichtel, principal investigator, said that this quasar is about six billion light years away and is the most distant gamma-ray source ever detected. "The scientific excitement here is that the energy released in these gamma rays is more than a thousand times the energy emitted from our galaxy at all wavelengths combined," Gehrels said. The Oriented Scintillation Spectrometer Experiment (OSSE) captured the best ever observation of the glow of gamma radiation from the disk of our galaxy caused by matter and antimatter annihilating each other. This scientific result does not fit any of the theoretical models, according to OSSE Principal Investigator Dr. James Kurfess, Naval Research Laboratory, Washington, DC. The Imaging Compton Telescope (COMPTEL) images were significant not only for what they showed, but also for what they didn't show. The images presented by COMPTEL Principal Investigator Volker Schoenfelder, Max Planck Institute, Germany, taken at the same time, of the same source, as those of the high-energy sensitive EGRET, did not show the mysterious source, Geminga, evident in the EGRET image. COMPTEL views the gamma-ray sky at intermediate energies. Upcoming targets for scientific observation include the galaxy Fairall 9 and the Quasar 3C273. The Goddard flight operations team reports that the observatory is functioning well, and data from tape recorder A continue to be analyzed for patterns in recurring bit errors. The current rate of errors does not seriously affect science data. Science is being performed without interruption using both the A tape recorder and the redundant B tape recorder. The Compton Observatory is managed and operated by Goddard, for NASA's Office of Space Science and Applications. -END- ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 4-OCT-1991 18:46:43.59 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 10/04/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 4-OCT-1991 18:46:16.34 Date: Fri, 4 Oct 1991 16:42:35 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911004164235.232004e0@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 10/04/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:209 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 10/04/91 Date: 4 OCT 91 16:26:12 Message-ID:<1991Oct4.162309.21795@elroy.jpl.nasa.gov> Forwarded from: PUBLIC INFORMATION OFFICE JET PROPULSION LABORATORY CALIFORNIA INSTITUTE OF TECHNOLOGY NATIONAL AERONAUTICS AND SPACE ADMINISTRATION PASADENA, CALIF. 91109. TELEPHONE (818) 354-5011 ULYSSES MISSION STATUS October 4, 1991 All ground operations, tracking and science experiment commanding of the Ulysses spacecraft are proceeding normally. Routine Earth-pointing maneuvers continue to be performed about every other day. The next set of maneuvers are scheduled for Saturday, Oct. 5 and Monday, Oct. 7. The spacecraft is about 772 million kilometers (480 million miles) from Earth, traveling at a heliocentric velocity of approximately 61,000 kilometers per hour (39,000 miles per hour). Ulysses is on a direct course to Jupiter, with about 96 million miles to travel before reaching the gaseous giant in early February 1992. ##### ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 4-OCT-1991 18:50:53.68 To: deen@utd750.utdallas.edu CC: Subj: Ulysses Update - 09/30/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 4-OCT-1991 18:47:21.05 Date: Fri, 4 Oct 1991 16:43:44 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911004164344.232004e1@MIPL5.JPL.NASA.GOV> Subject: Ulysses Update - 09/30/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:210 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Ulysses Update - 09/30/91 Date: 4 OCT 91 16:23:19 Message-ID:<1991Oct4.162021.21678@elroy.jpl.nasa.gov> Forwarded from Peter Beech, Ulysses Operations Manager SUBJECT: ULYSSES MISSION OPERATIONS REPORT No. 58 PERIOD: 24th September to 30th September 1991 1. MISSION OPERATIONS Tape recorder operations based on recovering data acquired during the out of view periods are continuing on a routine scheduled basis. Experiment reconfigurations have been carried out as required. An average of 98.02 % data recovery was achieved during this reporting period. The percentage of data acquired as a function of bit rate is as follows: 1024 bps 55.32 % 512 bps 42.61 % Routine Earth pointing manoeuvres were performed on 25th, 27th and 29th September. 2. SPACECRAFT STATUS POWER Nominal. Estimated S/C power consumption 267 watts. AOCS Nominal. TTC The spacecraft is currently configured with receiver 2 as the prime unit fed via the high gain antenna and with receiver 1 as backup fed through the low gain antenna (LGA-F). The downlink is currently via EPC1/TWTA1. The 34 meter ground stations are in use to support TTC operations. Received downlink level -146 dBm.(34 meter) X-band. (Variations of up to 10 db. can be expected as a result of station antenna in use, local weather conditions, and spacecraft antenna off-pointing). Received uplink level -131.0 dBm. DATA HANDLING Nominal. THERMAL Nominal. 3. FLIGHT DYNAMICS Solar Aspect The angle increased from 6.00 on Angle (deg.) 24th September to 6.73 on 30th September. Sun-Probe-Earth The angle increased from 5.64 on Angle (deg.) 24th September to 6.51 on 30th September. Spin Rate 4.984 rpm. 4. ORBITAL DATA Data taken at 09:00 PDT. on 30th September. Distance from Earth 771,832,967 km. Distance from Jupiter 165,769,222 km. Velocity relative to the Sun 63,673 km/hr. Velocity relative to the Earth 119,722 km/hr. 5. PLANNED OPERATIONS Routine data gathering operations will continue together with experiment reconfigurations as required. Routine Earth pointing manoeuvres will be carried out on 1st, 3rd and 5th October. 6. GROUND SEGMENT The ground segment performed nominally during the reporting period. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 4-OCT-1991 18:51:30.04 To: deen@utd750.utdallas.edu CC: Subj: Galileo Update - 10/04/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 4-OCT-1991 18:47:50.99 Date: Fri, 4 Oct 1991 16:44:10 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911004164410.232004e3@MIPL5.JPL.NASA.GOV> Subject: Galileo Update - 10/04/91 To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 jpl.spacecraft:211 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Galileo Update - 10/04/91 Date: 4 OCT 91 20:20:00 Message-ID:<1991Oct4.201657.26742@elroy.jpl.nasa.gov> Forwarded from William O'Neil, Galileo Project Manager GALILEO STATUS REPORT October 4, 1991 The Galileo spacecraft is operating normally in the dual-spin mode and transmitting coded telemetry at 40 bps. Today, playback of the second optical navigtion image will continue. Also, an imaging instrument (SSI) memory readout will be performed to verify the health status of the SSI. Saturday, the image playback activity will continue . Sunday, no spacecraft activities are scheduled. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule. From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 4-OCT-1991 19:00:10.29 To: deen@utd750.utdallas.edu CC: Subj: HQ 91-163/LIFE SCIENCES Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 4-OCT-1991 18:59:33.39 Date: Fri, 4 Oct 1991 16:55:59 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911004165600.232004ea@MIPL5.JPL.NASA.GOV> Subject: HQ 91-163/LIFE SCIENCES To: deen@utd750.utdallas.edu X-Vmsmail-To: DADI X-VMS-News: mipl5 nasa.nasamail.p:298 From: hqnewsroom@nasamail.nasa.gov (HQ NEWSROOM) Subject:HQ 91-163/LIFE SCIENCES Date: Fri, 4 Oct 1991 16:59:00 GMT Message-ID: FOR 2 P.M. ET RELEASE TODAY Paula Cleggett-Haleim Headquarters, Washington, D.C. October 4, 1991 (Phone: 202/453-1549) RELEASE: 91-163 NASA SELECTS CENTERS FOR LIFE SCIENCES RESEARCH Today, NASA selected two new institutions to serve as NASA Specialized Centers of Research and Training (NSCORT), continuing a program dedicated to the space life sciences begun in 1990. The centers will be located at the University of California, San Diego, and Lawrence Berkeley Laboratories, Berkeley, Calif. NASA plans to award each of the centers approximately $1 million a year for 5 years. In addition, a foreign center, the University of Giessen, Federal Republic of Germany, was tentatively selected as an NSCORT, pending full endorsement and financial support of the proposed effort by the appropriate elements of the German government. NASA selects foreign institutions for participation in its space science programs but does not directly fund them. Dr. Arnauld Nicogossian, Director of NASA's Life Sciences Division, made the selections based on peer reviews conducted under the auspices of the American Institute of Biological Sciences, site visits and comprehensive documentation reviews. The program will be an integral part of the division's research and analysis activities to advance basic knowledge and create effective ways for solving specific problems in space life sciences. Chosen from 13 applicants, each institution will address one of two research areas, exobiology or radiation health. The program is established exclusively for ground research and analysis. The directors, the institutions, the type of selection and the area of research are: o Exobiology Dr. Stanley L. Miller, University of California, San Diego. o Radiation Health Dr. Aloke Chatterjee, Lawrence Berkeley Laboratory, Berkeley, Calif.; Dr. Jrgen Kiefer, University of Giessen, Germany (tentatively selected). - end - From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) 4-OCT-1991 19:20:47.92 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com CC: Subj: Magellan Update - 10/04/91 Return-Path: Received: from MIPL5.JPL.NASA.GOV by UTD750.UTDALLAS.EDU ; 4-OCT-1991 19:20:25.58 Date: Fri, 4 Oct 1991 16:45:30 PDT From: RGD059@MIPL5.JPL.NASA.GOV (Bob Deen) Message-Id: <911004164530.232004e4@MIPL5.JPL.NASA.GOV> Subject: Magellan Update - 10/04/91 To: deen@utd750.utdallas.edu, c.meisl@applelink.apple.com X-Vmsmail-To: DADI,CCM X-VMS-News: mipl5 jpl.spacecraft:212 From: baalke@kelvin.jpl.nasa.gov (Ron Baalke) Subject:Magellan Update - 10/04/91 Date: 4 OCT 91 21:54:08 Message-ID:<1991Oct4.215104.28559@elroy.jpl.nasa.gov> Forwarded from Anthony Spear, Magellan Project Manager MAGELLAN STATUS REPORT October 4, 1991 The Magellan spacecraft is performing nominally. All starcals (star calibrations) and desats (desaturations) yesterday were successful. Spacecraft temperatures continue creep upward, as expected in this phase of Cycle 2. The DMS-B (Data Management Subsystem) tape recorder head now reaches 34.6 degrees C, about one degree above yesterday's peaks. Spacecraft controllers uploaded the M1277 command sequence late yesterday. It will begin execution this afternoon. They also performed a memory readout to determine the exact time of the two most recent TWTA (high power transmitter) SSO's (Spurious Shutoff's). The new command sequence is a one-week sequence which uses two 25 minute cooling periods in each orbit. This shortens the radar mapping swaths to about 54% of their normal length. Mapping begins at about 6 degrees north latitude and extends to the South Pole. The results of the Magellan mission continue to reach the science community and the general public. Jeff Plautt gave a lecture Sept. 26th to the San Fernando Chapter of the American Society of Materials, and Jeff Miller spoke on Magellan at the IEEE International SOI Conference in Vail, Colorado on October 1st. The distribution of mosaicked photo-products is progressing. 227 MIDRs (Mosaicked Image Data Record) have been shipped by DMAT (Data Management and Archive Team) to the National Space Science Data Center and the Regional Planetary Image Facilities. Digital compact disks, containing mosaicked images from the first four months of Cycle 1 have been delivered to the Radar Investigations Group. Most of the 22 CD-ROMs will be approved for distribution to scientists in October. The next 26 CD-ROMS, containing the second four months of images, will be delivered in late 1991 and early 1992. Ten CD-ROMs containing the altimetry and radiometer data will start production in October. ___ _____ ___ /_ /| /____/ \ /_ /| Ron Baalke | baalke@kelvin.jpl.nasa.gov | | | | __ \ /| | | | Jet Propulsion Lab | ___| | | | |__) |/ | | |__ M/S 301-355 Telos | For every rule, there is /___| | | | ___/ | |/__ /| Pasadena, CA 91109 | an exception. There is no |_____|/ |_|/ |_____|/ | exception to this rule.