Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from beak.andrew.cmu.edu via trymail for +dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl@andrew.cmu.edu (->+dist+/afs/andrew.cmu.edu/usr11/tm2b/space/space.dl) (->ota+space.digests) ID ; Tue, 17 Jul 1990 01:57:54 -0400 (EDT) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Tue, 17 Jul 1990 01:57:26 -0400 (EDT) Subject: SPACE Digest V12 #76 SPACE Digest Volume 12 : Issue 76 Today's Topics: Re: NASA Headline News for 07/16/90 (Forwarded) Payload Summary for 07/11/90 (Forwarded) NASA Headline News for 07/13/90 (Forwarded) Payload Status for 07/09/90 (Forwarded) Re: Personnel Launch System On-orbit satellite servicing Re: HST Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription notices, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: 17 Jul 90 01:15:38 GMT From: unmvax!uokmax!tom@ucbvax.Berkeley.EDU (Thomas Lynn Egelston Ii) Subject: Re: NASA Headline News for 07/16/90 (Forwarded) yee@trident.arc.nasa.gov (Peter E. Yee) writes: >----------------------------------------------------------------- >Monday, July 16, 1990 Audio Service: 202/755-1788 >----------------------------------------------------------------- >This is NASA Headline News for Monday, July 16........ >The liquid hydrogen tanking test on the Space Shuttle Atlantis at >the Kennedy Space Center went smoothly last Friday. Just what exactly does "smoothly" mean? I'd like to think the leak just disappeared, but that, of course, makes no sense. Was it a worse leak than the time before? Did they isolate it? -- Tom Egelston Internet: tom@uokmax.ecn.uoknor.edu Disclaimer: Don't get so stressed!! It's nothing but a bunch of 1's and 0's... "Though my eyes could see, I still was a blind man, Though my mind could think, I still was a mad man..." -- Kansas ------------------------------ Date: 16 Jul 90 01:51:18 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: Payload Summary for 07/11/90 (Forwarded) Payload Status Report Kennedy Space Center July 11, 1990 George Diller 407/867-2468 FTS 823-2692 AC-69/CRRES At Pad 36-B, a countdown simulation is underway today for the CRRES spacecraft. This will recreate spacecraft closeout activities in the gantry and electrical functions for the satellite as they occur on launch day and during the final countdown. This is necessary because the payload is not usually atop the launch vehicle during the Countdown Dress Rehearsal of the Atlas Centaur. The liquid hydrogen for the Centaur stage was delivered to Launch Complex 36 this morning. The RP-1 fuel, a highly refined kerosene, is scheduled to be loaded aboard the Atlas stage on Thursday. There are two launch windows available next Tuesday, July 17. Only one can be chosen on launch day. The liftoff is targeted for the initial window of 3:41 p.m. to 3:54 p.m. EDT. However, prior to loading cryogenics, if there is a technical problem or if weather should be a concern during the first window, the second opportunity will be selected. This extends from 4:56 p.m. to 5:09 p.m. The prelaunch news conference is scheduled for 11:00 a.m. on Monday, July 16, at the KSC News Center and will be carried on NASA Select. ULYSSES Checkout of the high gain antenna was completed last Friday as scheduled. Thermal blanket closeouts were completed today. Tonight, at 6:00 p.m., the spacecraft is to be moved from the Hangar AO Spacecraft Checkout Facility to the Explosive Safe Area (ESA-60) where preparations will begin for fueling next week. The PAM-S fueling of the nutation control system was completed today and the stage is now being weighed. The PAM-S is scheduled to be transported to the Veritical Processing Facility for mating to the Inertial Upper Stage on Friday, July 13. Communications testing between the VPF and the IUS checkout station (COS) in the Solid Motor Assembly Building (SMAB) on Cape Canaveral Air Force Station which began last week was completed on Monday, July 9. This testing was is in preparation for upcoming upper stage checkout activity. GAMMA RAY OBSERVATORY The spacecraft flight batteries were installed on Monday and are now being charged. An End-to-End Test (ETE #5) between GRO and the payload operations control center at the Goddard Space Flight Center in Greenbelt, Maryland is scheduled to begin next Tuesday, July 17. This is a five day exercise to verify procedures used during the early phase of deployment activities and to provide training for the flight operations team which will be on duty at that time. Included in the exercise is predeployment checkout, spacecraft release, and on-orbit activation of systems. ------------------------------ Date: 16 Jul 90 01:54:23 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: NASA Headline News for 07/13/90 (Forwarded) ----------------------------------------------------------------- Friday, July 13, 1990 Audio Service: 202/755-1788 ----------------------------------------------------------------- This is NASA Headline News for Friday, July 13........ Work at Kennedy Space Center this morning centered around support for the loading of liquid hydrogen into Atlantis' external tank. The chill down of the plumbing system in preparation for the tanking test occurred early this morning. New and additional sensor detectors were placed around the previous leak area. ******** Meanwhile at KSC, operators continue to install the 17-inch disconnect into the Space Shuttle Columbia. The 2-inch helium purge line in the 17-inch umbilical is also scheduled to be installed. In addition, the Broad Band X-ray Telescope is scheduled to be serviced with liquid argon. ******** Test procedures of the orbiter Discovery's systems continue today, as well, at KSC. Preparations are underway for servicing the Freon cooling system to prepare the orbiter's hydraulic system for tests of the flight control aerosurfaces and hydraulically operated valves on the main engines this weekend. Technicians are scheduled to begin installing heat shields around the three main engines. Discovery is being prepared for the STS- 41/Ulysses flight, scheduled for launch in October. ******** The Combined Release and Radiation Effects Satellite launch will be delayed one to two weeks due to an apparent problem with the Command and Data Processing Unit. Although the spacecraft's backup unit functioned properly, launch criteria require that the primary unit be fully operational as well. The problem appeared during the countdown practice at Cape Canaveral on Wednesday. Following additional testing and repair of the unit, a new launch date will be announced. ******** In deep space, the Galileo spacecraft performance continues to be excellent as it travels almost 88 million miles from Earth. The Jet Propulsion Laboratory Flight Team has developed the design of next week's trajectory correction maneuver. A series of lateral and axial thruster pulses will create a total velocity change of about 2 miles per hour. The command sequence will be sent to the spacecraft next Monday and the maneuver operation will begin on Tuesday, July 17. --------------------------------------------------------------- Here's the broadcast schedule for Public Affairs events on NASA Select TV. All times are Eastern Daylight. Friday, July 13....... 1:00 P.M. Replay of the Congressional Committee Science, Space and Technology hearing with Administrator Truly. -------------------------------------------------------------- All events and times may change without notice. This report is filed daily, Monday through Friday at 12:00 P.M., EDT. This is a service of the Internal Communications Branch, NASA HQ. Contact: JSTANHOPE or CREDMOND on NASAmail or at 202/453-8425. -------------------------------------------------------------- NASA Select TV: Satcom F2R, Transponder 13, C-Band, 72 Degrees West Longitude, Audio 6.8, Frequency 3960 MHz. JSNEWS7-13 --------------------------------------------------------------- ------------------------------ Date: 16 Jul 90 02:42:57 GMT From: trident.arc.nasa.gov!yee@ames.arc.nasa.gov (Peter E. Yee) Subject: Payload Status for 07/09/90 (Forwarded) Daily Status/KSC Payload Management and Operations 07-09-90. - STS-35 ASTRO-1/BBXRT (at OPF) - Experiment monitoring continues. - STS-37 GRO (at PHSF) - SURS and GRO cable fit checks will be performed today. - STS-40 SLS-1 (at O&C) - Closeout inspections and final CITE hardware installations continue today. - STS-41 Ulysses (at Hanger AO) - At the VPF, pre-checks of electrical test equipment continues today to support CITE testing. - STS-42 IML-1 (at O&C) - Rack, floor, and module staging is continuing. - Atlas-1 (at O&C) - IPR troubleshooting and cable installations are continuing. - STS-46 TSS-1 (at O&C) - Pallet structure modifications will be performed today. - STS-47 Spacelab-J (at O&C) - Rack staging continues. ------------------------------ Date: 16 Jul 90 14:38:44 GMT From: serre@boulder.colorado.edu (SERRE GLENN) Subject: Re: Personnel Launch System In article <78145@aerospace.AERO.ORG> smith@aero.UUCP (Thomas F. Smith) writes: >... MMC has a contract >for 48 Titan IVs that will keep them busy for the next decade. And >the payloads are NOT the kind that NASA can preempt. Any systems >out there? Actually, there are already a couple NASA payloads that are going to fly on a Titan IV. CRAF and CASSINi (sp?) come to mind. As for NASA not being able to preempt any of the next 48 payloads, I note that DOD budgets are being squeezed. One likely Air Force response might be to stretch out some programs, including non-critical satellite launches, which would open up some space for NASA payloads. --Glenn Serre serre@tramp.colorado.edu ------------------------------ Date: 16 Jul 90 17:49:43 GMT From: zaphod.mps.ohio-state.edu!usc!trwind!venice!sleepy!cliburn@tut.cis.ohio-state.edu Subject: On-orbit satellite servicing This was a company (TRW) announcement, so ignore any "way-to-go team" stuff. I just thought the concept might be of interest to the net... --- June 26, 1990 -- TRW was selected to negotiate a $1.3 million contract to perform definition studies and preliminary design leading to a Satellite Servicer System flight demonstration. Martin Marietta was also selected for a contract. Four teams submitted proposals for this Phase B study. Phase B is an important step in being considered for the production contract. The Satellite Servicer System (SSS) flight demonstration is a NASA Johnson Space Center program that will show the ability to maintain satellites in locations not readily accessible to humans (such as polar and high inclination orbits), to permit hazardous servicing, to reduce Space System Transportation System extravehicular activity dependency, and to improve cost efficiencies. It is expected that this SSS demonstration program will prove the feasibility of satellite servicing and give satellite users and owners the confidence to build satellites that can be maintained and refueled on-orbit. The ultimate success of satellite servicing will depend on the existence of service-friendly satellites as well as a means to provide the service. The study defines capabilities for autonomous rendezvous and docking, orbital replacement unit exchange, and fluid transfer capabilities. The concepts to be studied will use existing program technologies, including elements of NASA's Flight Telerobotic Servicer. SSS was intended to use only the Orbital Manuevering (sic) Vehicle (OMV) as its propulsion system. Because of the recent significant alteration of the OMV program, NASA Johnson Space Center with its two contractors will also examine SSS propulsion alternatives. The program is jointly funded by NASA and the Department of Defense. TRW is teamed with SPAR Aerospace Limited of Toronto, Canada, and Ocean Systems Engineering of Houston, Texas. (TRW organization things deleted here) This is one of four NASA Phase B studies we bid this year leading to major procurements. In March we were selected as part of a team to study the Assured Crew Return Vehicle. We also recently won Advanced TDRSS. The award for the Orbiting Solar Laboratory study is pending. (personal congratulations to the proposal team and others deleted here) --- Please, no flames about using the net to brag, advertise for, defend, or otherwise say nice things about my employer. The above is for information only, OK? (feeling I need to make this statement is utterly ridiculous) Jay Cliburn cliburn@doc.bmd.trw.com ------------------------------ Date: 16 Jul 90 15:05:28 GMT From: idacrd!mac@princeton.edu (Robert McGwier) Subject: Re: HST From article <90193.173725WTU@psuvm.psu.edu>, by WTU@psuvm.psu.edu: > Can somebody tell me why the HST is not shoot to the geostationary > orbit? Other than political reasons that NASA want to use shuttle Yes, we wanted to be able to service the HST from time to time. At present this requires a man to do the job. The only man rated vehicle we have is the shuttle. The energy required to lift the HST to geostationary might also be prohibitive. We shelved the Saturn's a while back ;-). Bob -- ____________________________________________________________________________ My opinions are my own no matter | Robert W. McGwier, N4HY who I work for! ;-) | CCR, AMSAT, etc. ---------------------------------------------------------------------------- ------------------------------ End of SPACE Digest V12 #76 *******************