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 ; Wed, 14 Nov 1990 02:12:11 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Wed, 14 Nov 1990 02:11:41 -0500 (EST) Subject: SPACE Digest V12 #547 SPACE Digest Volume 12 : Issue 547 Today's Topics: RADIO-M1: CW-Telemetry Equations Re: Call for new news group : sci.space.seds Re: Space Station mission [l/m 7/11] Frequently asked SPACE questions Re: Voyager Update - 11/09/90 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 ---------------------------------------------------------------------- Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 02:41:07 GMT From: swrinde!zaphod.mps.ohio-state.edu!think.com!masscomp!ocpt!tsdiag!ka2qhd!kd2bd@ucsd.edu (John Magliacane) Organization: KA2QHD - OCEAN NJ Subject: RADIO-M1: CW-Telemetry Equations Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu Copied From Amateur Packet Radio: Msg# TSP Size To @ BBS From Date Time Bid 14664 BN$ 3080 ALL AMSAT DB2OS 901109 1252 02B018DK0MAV Subject: RADIO-M1: CW-Telemetry Equations de DB2OS @ DK0MAV Info from AMSAT-U: TELEMETRY OF "RADIO-M1" ----------------------- Radio-M1 transmits Morse code (CW) and digital telemetry. CW telemetry will start as soon as the bird separates from the launch vehicle and Radio-M1 equipment will be powered by main satellite power system. CW Morse-Code telemetry frame consists of the registration call RS14 and 8 four-digit lines in the following format: RS14 1A 1B 1C 1D 2A 2B 2C 2D 3A 3B 3C 3D 4A 4B 4C 4D 5A 5B 5C 5D 6A 6B 6C 6D 7A 7B 7C 7D 8A 8B 8C 8D The 1A to 7A lines are analog telemetry data. Line 8A is calibration engineering parameter. The first digits from 1A to 8A are system status data: figure 6 means general operating status figure 2 means command operating status. The second digits from 1B to 8B (0 to 7) are numbers of line (channel). The third and fourth digits from 1C to 8D are analog telemetry datas. Table of meaning and decoding parameters --------------------------------------------------------- No of Parameter Formula Unit line 0 Transponder power output 0.05N Watt 1 Transponder PA Temperature N Grad. C 2 +24 V Regulated N Volt 3 +16 V Regulated N Volt 4 +9 V Regulated N Volt 5 +24 V Regulated N Volt 6 Inside Temperature N Grad. C 7 Service N * --------------------------------------------------------- Example: RS14 6080 - 4 Watts - general 6137 - 37 Grad. C - general 6224 - 24 Volts - general 6316 - 16 Volts - general 6409 - 9 Volts - general 2524 - 24 Volts - command 2632 - 32 Grad. C - command 2700 - 0 - command -EOF- -- John A. Magliacane FAX : (908) 747-7107 Electronics Technology Department AMPR : KD2BD @ NN2Z.NJ.USA.NA Brookdale Community College UUCP : ...!rutgers!ka2qhd!kd2bd Lincroft, NJ 07738 USA VOICE: (908) 842-1900 ext 607 ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 15:56:23 GMT From: data.nas.nasa.gov!mustang!nntp-server.caltech.edu!iago.caltech.edu!irwin@eos.arc.nasa.gov (Horowitz, Irwin Kenneth) Organization: California Institute of Technology Subject: Re: Call for new news group : sci.space.seds References: <1990Nov6.193929.6072@cc.ic.ac.uk>, <1990Nov8.145217.14520@cc.ic.ac.uk> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <1990Nov8.145217.14520@cc.ic.ac.uk>, zmapj36@cc.ic.ac.uk (M.S.Bennett Supvs= Prof Pendry) writes... > >I hope to have some persons posting a complete history of SEDS to this >newsgroup. > > >-- >/------ ------- -----\ /------ | ====================== | >| | | \ | | M. Sean Bennett | >\-----\ |---- | | \-----\ | UKSEDS TECH.OFF. | > | | | / | | Janet:SEDS@CC.IC.AC.UK | > I doubt that the readership of this news group would necessarily care to receive a complete history of SEDS. There may be several individual readers out there that are interested. In any event, the current leadership of SEDS is in the process of putting together a booklet describing the organization's first 10 years, with special sections written by long time members like myself. This booklet will not be completed until sometime next year, but when it is completed, I will post a message to sci.space to that effect. At that point, any interested readers out there can e-mail me requesting a copy of the booklet and I will see that one is sent to you. ------------------------------------------------------------------------------- Irwin Horowitz |"Suppose they went nowhere?"-McCoy Astronomy Department |"Then this will be your big chance California Institute of Technology | to get away from it all!"-Kirk irwin@romeo.caltech.edu | from STII:TWOK ih@deimos.caltech.edu | ------------------------------------------------------------------------------- ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 18:55:23 GMT From: sumax!polari!crad@beaver.cs.washington.edu (Charles Radley) Organization: Seattle Online Public Unix (206) 328-4944 Subject: Re: Space Station mission References: <9011072124.AA13810@iti.org>, <2688@polari.UUCP>, <11042@pt.cs.cmu.edu> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu +I think you have just destroyed your argument that LLNL will wind +up as expensive as Freedom. LLNL won't loft the science equipment. +This is smart: the alternative is no space station, and then there +_really_ won't be any science done. - What is smart about not lanching any science equipment ? How can you get science out of a station with no equipment ? ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 12:00:32 GMT From: data.nas.nasa.gov!amelia!eugene@eos.arc.nasa.gov (Eugene N. Miya) Organization: NAS Program, NASA Ames Research Center, Moffett Field, CA Subject: [l/m 7/11] Frequently asked SPACE questions Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu This list does change. Slowly. It only changes when the members of s.s. have something to add, correct, etc. I no longer have time to read s.s., and the SNR is too low. So if this does not change it is more a reflection of the other people you are reading, and not me. Think about that for a moment. You make the difference. "It's not a message. I think it's a warning." -- Ripley This is a list of frequently asked questions on SPACE (which goes back before 1980). It is developing. Good summaries will be accepted in place of the answers given here. The point of this is to circulate existing information, and avoid rehashing old answers. Better to build on top than start again. Nothing more depressing than rehashing old topics for the 100th time. References are provided because they give more complete information than any short generalization. Questions fall into three basic types: 1) Where do I find some information about space? Try you local public library first. You do know how to use a library, don't you? Can't tell these days. The net is not a good place to ask for general information. Ask INDIVIDUALS if you must. There are other sources, use them, too. The net is a place for open ended discussion. 2) I have an idea which would improve space flight? Hope you aren't surprised but 9,999 out of 10,000 have usually been thought of before. Again, contact a direct individual source for evaluation. NASA fields thousands of these each day. 3) Miscellanous queries. Sorry, have to take them case by case. Initially, this message will be automatically posted once per month and hopefully, we can cut it back to quarterly. In time questions and good answers will be added (and maybe removed, nah). 1) What happen to Saturn V plans? What about reviving the Saturn V as a heavy-lift launcher? Possible but very expensive -- tools, subcontractors, plans, facilities are gone or converted for the shuttle, and would need rebuilding, re-testing, or even total redesign. 2) Where can I learn about space computers: shuttle, programming, core memories? %J Communications of the ACM %V 27 %N 9 %D September 1984 %K Special issue on space [shuttle] computers %A Myron Kayton %T Avionics for Manned Spacecraft %J IEEE Transactions on Aerospace and Electronic Systems %V 25 %N 6 %D November 1989 %P 786-827 Other various AIAA and IEEE publications. Computers in Spaceflight: The NASA Experience James E. Tomayko 1988? 3) SETI computation articles? %A D. K. Cullers %A Ivan R. Linscott %A Bernard M. Oliver %T Signal Processing in SETI %J Communications of the ACM %V 28 %N 11 %D November 1984 %P 1151-1163 %K CR Categories and Subject Descriptors: D.4.1 [Operating Systems]: Process Management - concurrency; I.5.4 [Pattern Recognition]: Applications - signal processing; J.2 [Phsyical Sciences and Engineering]: astronomy General Terms: Design Additional Key Words and Phrases: digital Fourier transforms, finite impulse-response filters, interstellar communications, Search for Extra-terrestrial Intelligence, signal detection, spectrum analysis You can make it change. Just discuss the changes on the net, then mail the resolution to me. ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 10 Nov 90 20:15:05 GMT From: usc!cs.utexas.edu!news-server.csri.toronto.edu!csri.toronto.edu!wayne@ucsd.edu (Wayne Hayes) Organization: CSRI, University of Toronto Subject: Re: Voyager Update - 11/09/90 References: <1990Nov10.001052.28690@jato.jpl.nasa.gov> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <1990Nov10.001052.28690@jato.jpl.nasa.gov> baalke@mars.jpl.nasa.gov (Ron Baalke) writes: > Voyager 1 > On November 1, there was a slew to a position pointing >toward Voyager 2 to observe interstellar hydrogen levels between the two >spacecraft. > Voyager 2 > The Voyager 2 spacecraft collected UVS background in the anti-Voyager 1 >direction. On November 1, the scan platform was slewed to point towards >Voyager 1 to observe interstellar hydrogen levels between the two spacecraft. >Background levels will be removed by subtracting out the data from when the >spacecraft were pointed away from each other. Does this mean that they beamed some radio waves at each other to measure the absorbance at 21.1 cm? Do the spacecraft actually have powerful enough transmitters and sensitive enough receivers to actually detect each other? Or is it something to do with the absorbancy/emmission seen in all directions, and we're trying to measure a teensy-weensy delta between the background measured by spacecraft X minus the same background from the same direction measured by spacecraft Y? -- "Dad, what should I be when I grow up?" "Honest." -- Robert M. Pirsig, _Zen and the Art of Motorcycle Maintenence_. Wayne Hayes INTERNET: wayne@csri.utoronto.ca CompuServe: 72401,3525 ------------------------------ End of SPACE Digest V12 #547 *******************