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, 13 Nov 1990 02:26:28 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Tue, 13 Nov 1990 02:25:56 -0500 (EST) Subject: SPACE Digest V12 #540 SPACE Digest Volume 12 : Issue 540 Today's Topics: News From OSCAR-11 06-Nov-90 Profit from space? Re: LNLL Inflatable Stations Waveriders and Gravity Assists Re: LLNL Astronaut Delivery (was Re: You Can't Expect a Space Station) Re: Galileo Update - 11/06/90 Re: You Can't Expect a Space Station to be Cheap 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: 7 Nov 90 03:48:16 GMT From: usc!zaphod.mps.ohio-state.edu!uakari.primate.wisc.edu!dali.cs.montana.edu!masscomp!ocpt!tsdiag!ka2qhd!kd2bd@ucsd.edu (John Magliacane) Organization: KA2QHD - OCEAN NJ Subject: News From OSCAR-11 06-Nov-90 Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu SB NEWS @ ALLBBS < KD2BD $UOSAT.105 News From OSCAR-11 06Nov90 * UOSAT-2 OBC STATUS INFORMATION * DIARY OPERATING SYSTEM V3.1 SMH MLJM MSH Today's date is 6 /11 /90 (Tuesday) Time is 14 :18 :25 UTC Auto Mode is selected Spin Period is - 282 Z Mag firings = 0 + SPIN firings = 11 - SPIN firings = 7 SEU count = 132 RAM WASH pointer at 982 WOD commenced 6 /11 /90 at 0 :0 :10 with channels 50 ,51 ,52 ,57 , Last cmnd was 109 to 0 , 0 Attitude control initiated, mode 1 **** UoSAT-OSCAR-11 BULLETIN 06 November 1990 **** UoSAT MISSION CONTROL CENTRE University of Surrey, Guildford, Surrey, GU2 5XH, England ** AO-16 / UO-14 BBSs COMMISSIONED ** The Packet Bulletin Board software which has been running in 'beta test' versions on UoSAT-OSCAR-14 since July has now been loaded to AO-16. This follows a period of intense development by Jeff Ward, G0/K8KA, and Harold Price, NK6K, getting software ready for hundreds of users expected to access AO-16 and UO-14. The programs loaded to the satellites, when combined with several groundstation client programs, implement the PACSAT communications protocols proposed by Jeff and Harold in papers presented at the recent ARRL Amateur Radio Computer Networking Conference. The protocols provide a connected-mode file transfer facility called FTL0 and a standard broadcast mode for bulletins and other items of general interest. When someone is up or downloading in connected mode you will see packets from the FTL0 server callsign: PACSAT-0 (on AO-16) or UOSAT3-12 (on UO-14). Bulletins being broadcast will have source callsigns UOSAT3-11 or PACSAT-11. These packets may contain some ASCII text, although each will begin with a short binary header. The PACSAT protocol suite requires special groundstation software to interpret binary headers and implement protocol handshakes. Papers in the 9th ARRL Networking Conference proceedings describe the protocols in detail. Software for groundstations with IBM-PC type computers will be made available free by UoS through dial-up bulletin boards and on-line information systems. The release of the groundstation software, expected around 8 or 9 November, will mark the official opening of UO-14 and AO-16 for communications by any suitably-equipped, licensed radio amateur. With LO-19 following stortly and FO-20 already providing service, the Amateur Satellite Service will soon have a useful and interesting network of store-and-forward satellites. ** RS-14/RUDAK-2 Reliable sources within the Soviet Union indicate that the launch of RS- 14/RUDAK-2 is now expected to happen on or about November 24, 1990. UA3CR requests the help of radio amateurs all over the world to collect telemetry and send it via packet radio or via a SSB net to him. The first day's worth of telemetry will transmitted via a CW beacon at 20 WPM on 145.822 or on 145.948 MHz SSB and will be vitally important to ground controllers. Later, after ALL systems are working properly on the RUDAK-2 transponder, PSK/BBS/MODE B operations will begin. ** AO-13 The transponder schedule is as follows: Mode B : MA 000-095 Mode-JL: MA 095-125 Mode-LS: MA 125-130 Mode-S : MA 130-135 Mode-BS: MA 135-140 Mode-B : MA 140-256 Omnis : MA 220-040 This schedule is expected to continue through 26 Dec 90. BLON = 180 and BLAT = 0 ** $BID ** Please use BID $UOSAT.105 for PR BBS use. /EX -- 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: Wed, 07 Nov 90 10:07:10 CET To: SPACE%ANDREW.CMU.EDU@vma.cc.cmu.edu From: LMASSONN%ESOC.BITNET@vma.cc.cmu.edu Comment: CROSSNET mail via MAILER@CMUCCVMA Subject: Profit from space? Date: 07 November 1990, 09:53:36 CET From: Lutz Massonne +49 6151 90 2027 LMASSONN at ESOC To: SPACE@ANDREW.CMU.EDU Subject: Profit from Space? Some recent posters stated that the main goal of a Space Agency should be earning profilts from space development. This may be only indirectly correct. I don't know about NASA, but ESA is not able to gain any profit by its constitution. The purpose of ESA is to develop space technologies and to perform scientific research (and to benefit European industry :-) ). As soon as any field of ESA's activity get profitable, it has to be taken out of ESA and handed over to industry or other organisations. This happened with Ariane (which is now marketed by Arianespace, a legally private company), and ESA pays to Arianespace for the launches like any other customer. The meteorological business is handled by EUMETSAT (though the satellite operations are still with ESOC) and the communication satellites are operated by EUTELSAT (but development of new communication satellite technology is still done by ESA). If the situation is the same with NASA, it mey be a cheap shot to say "they can't make profit out of space" if the people are not PERMITTED to do so. Regards, Lutz Massonne Disclaimer: Neither my company nor ESA is responsible for my opinions +===================================+===============================+ | Lutz Massonne |This mail expresses my personal| | Robert-Bosch Str. 5 |opinions only and is in no way | | D-6100 Darmstadt, FRG |official or reliable. | +===================================+===============================+ ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 8 Nov 90 04:04:48 GMT From: munnari.oz.au!brolga!bunyip.cc.uq.oz.au!iceman!eempa@uunet.uu.net (M Parigi) Organization: JCUNQ, Townsville, Qld, Australia Subject: Re: LNLL Inflatable Stations References: <2667@polari.UUCP>, <9011061347.AA16848@iti.org> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu What are the repairment proposals for damage due to space debris for the LLNL inflatable space station. Would the material tend to tear due to the pressure differential once a small rip was instigated (fail catastrophically, much like an ALOHA airliner did some time ago, ripping its top off) like most plastics, composites would; or would it tend to retain strength around the hole like (unfatigued) metal, for the proposed material of the inflatable station. What is the material being proposed? Marco Parigi. Electrical and Computer Engineering James Cook University N.Q. (They had nothing to do with it) ------------------------------ Date: 7 Nov 90 16:54:34 GMT From: sdd.hp.com!elroy.jpl.nasa.gov!aristotle!ems@ucsd.edu (Eric Slimko) Subject: Waveriders and Gravity Assists I just read an interesting concept the other day in the latest issue of Final Frontier in the "Notes from Earth" column, I believe. It involved using a waverider design on a spacecraft in order to dive through the atmosphere of a planet to get really close for the maximum gravity assist. The article claimed it could cut a 12 year trip to Pluto down to 4 years (!). I don't know much about the equations governing waveriders, but I am really surprised that the additional boost from getting closer is that much greater than the drag induced from going through the atmosphere. The article didn't treat the subject heavily, and the numbers 12 and 4 were about the only ones in there. Has anyone done/heard some work on this subject and would like to give some more detail? -- Eric Slimko | Jet Propulsion Laboratories ems@aristotle.jpl.nasa.gov | NASA/CalTech 0, unseen,, *** EOOH *** Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Received: from po2.andrew.cmu.edu via trymail for space-usenet+@andrew.cmu.edu (->ota+space.incoming) ID ; Thu, 8 Nov 90 19:23:10 -0500 (EST) Received: from po2.andrew.cmu.edu via qmail ID ; Thu, 8 Nov 90 19:20:16 -0500 (EST) Received: from ucbvax.Berkeley.EDU by po2.andrew.cmu.edu (5.54/3.15) id ; Thu, 8 Nov 90 16:16:54 EST Received: by ucbvax.Berkeley.EDU (5.63/1.42) id AA01293; Thu, 8 Nov 90 12:37:07 -0800 Received: from USENET by ucbvax.Berkeley.EDU with netnews for space-usenet@andrew.cmu.edu (space@andrew.cmu.edu) (contact usenet@ucbvax.Berkeley.EDU if you have questions) Date: 8 Nov 90 19:45:47 GMT From: swrinde!cs.utexas.edu!usc!elroy.jpl.nasa.gov!jato!mars.jpl.nasa.gov!baalke@ucsd.edu (Ron Baalke) Organization: Jet Propulsion Laboratory, Pasadena, CA. Subject: Magellan Update - 11/08/90 Message-Id: <1990Nov8.194547.11010@jato.jpl.nasa.gov> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu MAGELLAN STATUS REPORT November 8, 1990 The Magellan spacecraft is in good health, in its Superior Conjunction mode. The daily STARCALS (star calibrations) and twice daily DESATS (desaturations) have been successful. Yesterday's commands to re-configure the spacecraft were successfully uploaded, including setting the command loss timer to 9 days and disabling the S-band RF loss monitor. Today the spacecraft controllers plan to play back track 4 of the tape recorder and uplink other configuration commands in preparation for Friday's upload of the mapping sequence. Execution of the sequence will begin with orbit #787 at 4:07 AM PST on Saturday, November 10. If mapping resumes as now scheduled, the "Superior Conjunction Gap" will include 110 orbits or about 22 degrees of longitude. This area will be mapped between June 26 and 11 July 11, 1991, when Magellan again passes over. ___ _____ ___ /_ /| /____/ \ /_ /| | | | | __ \ /| | | | Ron Baalke | baalke@mars.jpl.nasa.gov ___| | | | |__) |/ | | |___ Jet Propulsion Lab | baalke@jems.jpl.nasa.gov /___| | | | ___/ | |/__ /| M/S 301-355 | |_____|/ |_|/ |_____|/ Pasadena, CA 91109 | ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 8 Nov 90 04:07:04 GMT From: sumax!thebes!polari!crad@beaver.cs.washington.edu (Charles Radley) Organization: Seattle Online Public Unix (206) 328-4944 Subject: Re: LLNL Astronaut Delivery (was Re: You Can't Expect a Space Station) References: <9011061342.AA16405@iti.org>, <2669@polari.UUCP>, <1990Nov7.175448.17819@zoo.toronto.edu> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu Payload Systems did indeed slip through the net. What I mean by that is that they did obtain an export license, but the license was issued by the Department of Commerce, and not by the Department of State. The latter was extremely annoyed, and had strong words to say to the Dept of Commerce. It is now highly unlikely that Commerce will want to incurr the wrath of State again, and are not likely to issue any more licenses without State's approval. Ref USBI and CYSA - there were lots of reports in the media in the summer that an export license had been issued to USBI. However, I never saw a formal announcement. I attended the Vandeburg Space Week conference at the end of July, where Norman Bowles, Associate Director of Licensing Programs at the Department of Transportation stated strongly that the reports in the media were incorrect, and that no formal approval had been given. I still have not seen a formal announcement. Have you ? If on the other hand, USBI did get a license, then it sets a significant precedent. I will investigate the possibility of buying stock in CYSA and/or USBI, since with low cost soviets launch vehicles, they cost to orbit will be unassailable. ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 8 Nov 90 21:01:58 GMT From: usc!elroy.jpl.nasa.gov!euclid.jpl.nasa.gov!pjs@apple.com (Peter Scott) Organization: Jet Propulsion Laboratory, NASA/Caltech Subject: Re: Galileo Update - 11/06/90 References: <1990Nov6.203112.23639@jato.jpl.nasa.gov> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <1990Nov6.203112.23639@jato.jpl.nasa.gov>, baalke@mars.jpl.nasa.gov (Ron Baalke) writes: > > Galileo Status Report > November 6, 1990 > > A NO-OP command was sent yesterday to the Galileo spacecraft to reset > the Command Loss Timer [...] For those of you wondering what the other commands in the Galileo spacecraft instruction set are, here are a few of them: BIC Branch on Inferior Conjunction THA Twirl High-gain Antenna IRL Ignore Receiver Lock JMP Jump on Major Planet RUI Reject Ugly Image I'm sure that some more spacecraft experts on the net would be happy to post the rest of the set... :-) :-) :-) -- This is news. This is your | Peter Scott, NASA/JPL/Caltech brain on news. Any questions? | (pjs@euclid.jpl.nasa.gov) ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 8 Nov 90 17:54:46 GMT From: usc!samsung!rex!rouge!dlbres10@ucsd.edu (Fraering Philip) Organization: Univ. of Southwestern LA, Lafayette Subject: Re: You Can't Expect a Space Station to be Cheap References: <6762@hub.ucsb.edu>, <9010250032.AA13018@iti.org> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <8580@fmeed1.UUCP> cage@fmeed1.UUCP (Russ Cage) writes: RC>Show me anything like SSX which has flown even 2 flights, and RC>come within a factor of 2 of its cost target. Well, for starters, Max Hunter, SSX's main proponent, says that it is less complex than a major airliner. _And_ I have read that the same energy involved in launching something into low orbit is about the same as sending it to Australia via airplane, due to the fact that the airplane spends all of its time down in the soup. Phil ------------------------------ End of SPACE Digest V12 #540 *******************