Return-path: X-Andrew-Authenticated-as: 7997;andrew.cmu.edu;Ted Anderson Received: from hogtown.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) ID ; Fri, 7 Jun 91 02:41:39 -0400 (EDT) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Fri, 7 Jun 91 02:41:34 -0400 (EDT) Subject: SPACE Digest V13 #612 SPACE Digest Volume 13 : Issue 612 Today's Topics: Re: Gravity vs. Mass Re: Who gets free plane tickets? Answer to Magellan queries Mars face coordinates Re: Moonbase movie *Plymouth* to air Sunday? Re: Asteroid Hazard Avoidance Re: Asteroid Hazard Avoidance NASA Prediction Bulletins, Part 2 Administrivia: Submissions to the SPACE Digest/sci.space should be mailed to space+@andrew.cmu.edu. Other mail, esp. [un]subscription requests, should be sent to space-request+@andrew.cmu.edu, or, if urgent, to tm2b+@andrew.cmu.edu ---------------------------------------------------------------------- Date: 21 May 91 19:31:24 GMT From: agate!spool.mu.edu!think.com!zaphod.mps.ohio-state.edu!rpi!news-server.csri.toronto.edu!utzoo!henry@ucbvax.Berkeley.EDU (Henry Spencer) Subject: Re: Gravity vs. Mass In article antunes@astro.psu.edu (Sandy Antunes) writes: >As a side comment, if the general point-mass assumption used in the >simple form of the grav const. formula were true, there would be no >tides... tides are due to the fact that things really aren't point masses. Nope. The Moon would still cause tides even if it were a point mass. The significant fact is that the *Earth* is big enough that different parts of it feel the Moon's gravitational field at different strengths. That just requires the inverse-square law, and an affected body (which need not have a significant gravitational field of its own) of non-zero size. The gravitating body need not be of significant size. -- And the bean-counter replied, | Henry Spencer @ U of Toronto Zoology "beans are more important". | henry@zoo.toronto.edu utzoo!henry ------------------------------ Date: 21 May 91 20:38:19 GMT From: agate!spool.mu.edu!mips!news.cs.indiana.edu!ux1.cso.uiuc.edu!edotto@ucbvax.Berkeley.EDU (Ed Otto) Subject: Re: Who gets free plane tickets? jim@pnet01.cts.com (Jim Bowery) writes: >Those of us who aren't being paid by the government should have at >least as much say in our government as those who are, such as NASA >civil servants and their contractors at places like McDonnell Douglas. True... >This is especially true since we are the ones who are paying the bills. Wanna bet? You're not paying the bills unless you make less than $25K/yr. >That being the case, whenever a civil servant or contractor flies into >Washington D.C. to lobby for something like Space Station Fred, it is >only fair that the government also pay for at least one taxpaying >citizen to fly into Washington D.C. to lobby against something like >Space Station Fred. Fine. Send ME - but ONLY IF YOU PAY ME WHAT THEY GET PAID! >This is actually unfair to the taxpayer because it presumes that the >guys flying in to lobby for Fred shouldn't simply be thrown in jail >for doing so -- which is in fact what should be done. Why should they be thrown in jail? For exercising their rights to speak on an issue? YOU SHOULD BE THROWN IN JAIL FOR ADVOCATING CIVIL RIGHTS VIOLATIONS! :-) >I urge you to contact your Congressional representative and ask that >they take one of two actions: >1) Either send you an airfare to Washington D.C. so that the anti-Fred >constituency can have equal time with the government paid pro-Fred >lobbyists. OBVIOUSLY, you are anti-Fred. You got your equal time. Go for it! >OR >2) Track down all of the government paid pro-Fred lobbyists who have >flown in and throw the lot of the criminals in jail. Ya - if you threw all of the lobbiers in jail, and the people that abused the system in Washington, D.C. in jail you'd have: 1) Everyone in government in Washington in jail; 2) A country that ran better because the Federal government would no longer exist. You REALLY wanna do something for your country? Call/write your congressman advocating a very simple Federal Tax Law: 7.5% head tax on your gross income, with the first $10K EXEMPT. Then eliminate the IRS, because they'd no longer be neccessary... ******************************************************************************* * * Netmail addresses: * * Edward C. Otto III * edotto@uipsuxb.ps.uiuc.edu * * University of Illinois * edotto@uiucux1.cso.uiuc.edu * * Printing Services Office * UIPSA::OTTO (Decnet node 46.99) * * 54A E. Gregory Dr. * otto@uipsa.dnet.nasa.gov * * Champaign, IL 61820 * Office phone: 217/333-9422 * * * * ******************************************************************************* A 7.5% head tax to replace the Federal Income Tax - First $10K exempt, no ceiling! Now THAT's how I define justice! -- ******************************************************************************* * * Netmail addresses: * * Edward C. Otto III * edotto@uipsuxb.ps.uiuc.edu * * University of Illinois * edotto@uiucux1.cso.uiuc.edu * ------------------------------ Date: 21 May 91 14:02:48 GMT From: agate!spool.mu.edu!think.com!zaphod.mps.ohio-state.edu!swrinde!elroy.jpl.nasa.gov!mipl3!cel342@ucbvax.Berkeley.EDU (Craig Leff) Subject: Answer to Magellan queries In reference to two recent Magellan queries: 1) Magellan has three reaction wheels, one for each of the X, Y and Z axes. They are spun up as necessary to turn the spacecraft for mapping and playback and to maintain spacecraft attitude. They are permitted to reach a certain number of RPMs before they are desaturated using brief thruster bursts. The main forces affecting the spacecraft that require these desats are the solar wind and the gravitational field of Venus itself, which is, of course, not homogeneous and tugs at the spacecraft in different ways at different times. 2) Heartbeat loss is the loss of the "handshaking" that goes on between the attitude control CPU and the central CPU which monitors and controls all spacecraft functions. There is a sporadic attitude control problem on Magellan, well documented on this BBS and elsewhere, in which the two computers stop talking for a (very brief) moment (heartbeat loss). The heartbeat loss response includes the failsafe actions designed to take place when such an interrupt occurs. ------------------------------ Date: 17 May 91 13:58:22 GMT From: news-server.csri.toronto.edu!helios.physics.utoronto.ca!ria!uwovax.uwo.ca!17001_1511@uunet.uu.net Subject: Mars face coordinates Since someone asked and there is so much interest in this stupid face I will post its coordinates. Looking at it on the USGS photomosaic is very useful because it really shows how many other similar hills there are. If you look at a thousand bits of driftwood eventually you find one that looks like a horse's head... similarly with martian hills, one is bound to look like elvis. The 'head' is at 41 degrees north, 9.5 degrees west, and is clearly seen in USGS photomosaic I-1351 (Mare Acidalium southeast). Clearly seen, but only as a dot at this scale. Compare any picture of the hill and a few of its neigh- bours with the mosaic (try any good university map library) and you should be able to spot it. It is also seen in Fig. 2 of "Geological Observations in the Cydonia Region of Mars", by John Guest et al., JGR Vol. 82, no. 28, 1977, pp. 4111-4120. ------------------------------ Date: 23 May 91 22:15:59 GMT From: csus.edu!wuarchive!usc!hela!aws@ucdavis.ucdavis.edu (Allen W. Sherzer) Subject: Re: Moonbase movie *Plymouth* to air Sunday? Yes it is indeed goint go be on ABC at 8:00 or 9:00. If you like the show, it's not too late to get a series out of it. Call ABC TV programming department and tell them you liked it and would like a series. Also call the sponsors and tell them. Allen d d dd -- +---------------------------------------------------------------------------+ |Allen W. Sherzer | Allen's tactics are too tricky to deal with | | aws@iti.org | -- Harel Barzilai | +---------------------------------------------------------------------------+ ------------------------------ Date: 24 May 91 00:21:15 GMT From: sequent!muncher.sequent.com!szabo@uunet.uu.net Subject: Re: Asteroid Hazard Avoidance In article <13172@uhccux.uhcc.Hawaii.Edu> tholen@uhccux.uhcc.Hawaii.Edu (David Tholen) writes: [Excellent article on earth-crossers]... >10 meters is close to the size that you would expect most or all of it to >burn up in the atmosphere, so the impact threat is perhaps removed. For >practical considerations, we need to start worrying about objects larger >than about 500 meters, depending on composition, of course (solid nickel-iron >would carry more energy than other less dense compositions). 10 meters of solid nickel-iron would make it quite intact through the atmosphere, as surely as Skylab or your nearest iron meteor. Fortuneately, most (96%?) of asteroids are not solid nickel-iron. Small asteroids are important for future space material resources. Moving one whole, assuming it has at least 15-30% water, is far easier than trying to mine the rock and bring back peices. However, it is quite impractical to move an asteroid of 500m or larger size. You are quite correct to note, however, that small asteroids are _extremely_ hard to find, unless they coming buzzing inside of the Moon's orbit, as did 1991BA. An earth-crossing search will find the larger ones sooner. A visual search will also find the brighter ones (eg nickel-iron) sooner than dark carbonaceous asteroids, though the converse is true for infrared searches. -- Nick Szabo szabo@sequent.com "If you understand something the first time you see it, you probably knew it already. The more bewildered you are, the more successful the mission was." -- Ed Stone, Voyager space explorer ------------------------------ Date: 23 May 91 22:35:37 GMT From: spool.mu.edu!munnari.oz.au!uhccux!tholen@decwrl.dec.com (David Tholen) Subject: Re: Asteroid Hazard Avoidance Robert F. Stengel writes: >According to Aviation Week (6/4/90): "Asteroids hurtling toward Earth are suff >iciently large and numerous that the (AIAA) persuaded Vice President Dan Quayle >to mention the threat in a recent speech. The impact of an asteroid that whiz >zed by in 1989 would have equalled 1,000-2,500 one-megaton hydrogen bombs. The >AIAA says the asteroid passed through Earth's orbit just 6 min. after the plan >et was there, and no one saw it coming." > How about some discussion ... There already has been a lot of discussion here. The following points are relevant. We didn't see 1989 FC coming because it approached the Earth from the daytime side. We are essentially blind half the time. Congress has directed NASA to study the problem. The first of two workshops devoted to the detection, orbit determination, and charterization of these objects will occur in early July. The record close approach set by 1989 FC was shattered in January when 1991 BA passed only half the distance to the Moon. However, this object was a mere 10 meters or so in diameter, so it did not pose a global threat (though I'd be upset if such an object landed in my backyard). I don't mean to dismiss the small objects as unimportant, but the smaller you go, the more objects there are, and the harder it is to see them coming. 10 meters is close to the size that you would expect most or all of it to burn up in the atmosphere, so the impact threat is perhaps removed. For practical considerations, we need to start worrying about objects larger than about 500 meters, depending on composition, of course (solid nickel-iron would carry more energy than other less dense compositions). ------------------------------ Date: 20 May 91 21:55:12 GMT From: udecc.engr.udayton.edu!blackbird.afit.af.mil!tkelso@tut.cis.ohio-state.edu (TS Kelso) Subject: NASA Prediction Bulletins, Part 2 The most current orbital elements from the NASA Prediction Bulletins are carried on the Celestial BBS, (513) 427-0674, and are updated several times weekly. Documentation and tracking software are also available on this system. As a service to the satellite user community, the most current of these elements are uploaded weekly to sci.space. This week's elements are provided below. The Celestial BBS may be accessed 24 hours/day at 300, 1200, or 2400 baud using 8 data bits, 1 stop bit, no parity. - Current NASA Prediction Bulletins #846b - COBE 1 20322U 89 89 A 91134.05841175 .00000206 00000-0 15521-3 0 3317 2 20322 99.0130 146.2483 0009252 163.7627 196.3815 14.03077884 75884 Kvant-2 1 20335U 89 93 A 91138.86835319 .00035161 00000-0 33845-3 0 6985 2 20335 51.6083 75.9544 0005105 189.0892 171.1385 15.66183209 84234 GPS BII-05 1 20361U 89 97 A 91135.16341753 .00000012 00000-0 99999-4 0 1718 2 20361 55.0542 127.1787 0062480 62.5659 298.0823 2.00558286 1000 SPOT 2 1 20436U 90 5 A 91137.72626007 .00000626 00000-0 31214-3 0 5859 2 20436 98.7378 212.3898 0000745 95.8722 264.2540 14.20016075 68228 UO-14 1 20437U 90 5 B 91133.21636294 .00000707 00000-0 29428-3 0 3851 2 20437 98.6642 212.8747 0010586 271.6760 88.3190 14.29109157 67992 UO-15 1 20438U 90 5 C 91133.73393915 .00000435 00000-0 18896-3 0 2796 2 20438 98.6702 213.2834 0009434 269.2249 90.7846 14.28693498 68055 PACSAT 1 20439U 90 5 D 91134.72375448 .00000648 00000-0 27084-3 0 2849 2 20439 98.6725 214.6919 0011325 279.0502 80.9387 14.29198351 68211 DO-17 1 20440U 90 5 E 91137.15617569 .00000715 00000-0 29680-3 0 2832 2 20440 98.6732 217.1507 0010401 262.7018 97.2990 14.29285003 68567 WO-18 1 20441U 90 5 F 91135.23712563 .00000616 00000-0 25769-3 0 2812 2 20441 98.6714 215.2902 0011051 266.9323 93.0595 14.29328365 68297 LO-19 1 20442U 90 5 G 91135.98331718 .00000625 00000-0 26126-3 0 2823 2 20442 98.6713 216.0881 0011268 263.3478 96.6432 14.29405884 68408 GPS BII-06 1 20452U 90008 A 91104.64828609 -.00000008 00000-0 00000 0 0 01549 2 20452 054.3878 243.7085 0043963 051.6051 308.8222 02.00557816008908 MOS-1B 1 20478U 90 13 A 91138.22820807 .00000292 00000-0 24366-3 0 5831 2 20478 99.1530 211.3658 0000655 120.2072 239.9157 13.94860362 64846 DEBUT 1 20479U 90 13 B 91132.90705426 .00000147 00000-0 38007-3 0 2271 2 20479 99.0249 121.7672 0541629 21.5546 340.7512 12.83197968 59036 FO-20 1 20480U 90 13 C 91129.94007955 .00000032 00000-0 12036-3 0 2216 2 20480 99.0269 119.3631 0541409 28.2030 334.7299 12.83179903 58657 MOS-1B R/B 1 20491U 90 13 D 91137.96935543 .00000427 00000-0 85057-3 0 2875 2 20491 99.0189 138.8364 0470261 326.5660 30.6549 13.02855752 59992 LACE 1 20496U 90 15 A 91136.82062597 .00012122 00000-0 60970-3 0 5466 2 20496 43.0998 282.5733 0020297 294.8061 65.0676 15.17026107 69146 RME 1 20497U 90 15 B 91138.11699891 .00025958 00000-0 47042-3 0 5998 2 20497 43.1088 169.7558 0018933 38.3044 321.9163 15.48932217 70515 Nadezhda 2 1 20508U 90 17 A 91139.11739269 .00000174 00000-0 17488-3 0 3338 2 20508 82.9540 172.2072 0045628 129.8102 230.7099 13.73313903 61116 OKEAN 2 1 20510U 90 18 A 91137.48489936 .00002074 00000-0 30497-3 0 5500 2 20510 82.5377 149.5356 0016864 270.4150 89.5133 14.74952344 65316 INTELSAT-6 1 20523U 90 21 A 91135.35585721 .00003632 00000-0 24390-3 0 5248 2 20523 28.3377 245.3042 0015094 148.0818 212.0687 15.03923803 64474 GPS BII-07 1 20533U 91105.05693773 -.00000034 10000-3 0 2207 2 20533 55.1887 3.7570 0034776 95.6026 264.8348 2.00567925 7677 PegSat 1 20546U 90 28 A 91138.20533979 .00013302 00000-0 67072-3 0 5299 2 20546 94.1385 34.4692 0129600 199.6244 160.0042 15.10015384 60445 HST 1 20580U 91138.44191431 .00005616 00000-0 58746-3 0 4732 2 20580 28.4706 272.5062 0005565 13.1677 346.9055 14.87682359 57887 Glonass 44 1 20619U 90 45 A 91139.15491027 -.00000018 00000-0 99999-4 0 5072 2 20619 65.0750 27.4109 0021797 215.7695 144.1340 2.13103165 7788 Glonass 45 1 20620U 90 45 B 91138.33427752 -.00000018 00000-0 99999-4 0 5549 2 20620 65.0698 27.4429 0008539 32.5609 327.5444 2.13102905 7777 Glonass 46 1 20621U 90 45 C 91138.39322928 -.00000018 00000-0 99999-4 0 4601 2 20621 65.0898 27.4565 0011502 203.2789 156.6970 2.13102551 7773 Kristall 1 20635U 90 48 A 91138.93211169 .00062604 00000-0 59570-3 0 4982 2 20635 51.6084 75.6351 0004637 170.8296 189.1210 15.66214946 55121 ROSAT 1 20638U 90 49 A 91138.02549756 .00005506 00000-0 44746-3 0 2976 2 20638 52.9964 1.9969 0011709 256.4265 103.5409 15.00946305 52505 Meteor 2-19 1 20670U 90 57 A 91137.68861796 .00000328 00000-0 28517-3 0 2327 2 20670 82.5488 23.1340 0017592 68.9603 291.3435 13.83971347 44787 CRRES 1 20712U 90 65 A 91137.62062687 .00000638 00000-0 94728-3 0 2937 2 20712 17.8628 284.3843 7106969 67.7573 349.9046 2.44345770 7234 GPS BII-08 1 20724U 90 68 A 91132.32558122 .00000016 00000-0 99999-4 0 1226 2 20724 54.6877 183.1119 0096125 126.1117 234.8738 2.00563240 5642 Feng Yun1-2 1 20788U 90 81 A 91131.58759229 .00000355 00000-0 25966-3 0 1913 2 20788 98.9465 165.8726 0014521 280.9083 79.0448 14.01146817 35087 Meteor 2-20 1 20826U 90 86 A 91137.91033408 .00000163 00000-0 13949-3 0 1834 2 20826 82.5278 321.9797 0012985 331.3946 28.6495 13.83344374 32025 GPS BII-09 1 20830U 90 88 A 91133.35733999 .00000012 00000-0 99999-4 0 1223 2 20830 54.9455 125.4631 0072578 115.1164 245.5422 2.00568613 4747 GPS BII-10 1 20959U 90103 A 91130.27549330 .00000016 00000-0 99999-4 0 745 2 20959 54.9053 184.8354 0047998 215.3773 144.3854 2.00567541 3272 DMSP B5D2-5 1 20978U 91138.42141408 .00001164 00000-0 44392-3 0 1968 2 20978 98.8413 174.7176 0079794 226.5137 132.9395 14.30964553 23991 Soyuz TM-11 1 20981U 90107 A 91138.86833618 .00036319 00000-0 34929-3 0 1985 2 20981 51.6067 75.9606 0005203 190.7626 169.3655 15.66183802 26228 Glonass 47 1 21006U 90110 A 91137.96279488 .00000020 00000-0 99999-4 0 1986 2 21006 64.8408 147.0617 0061727 187.6712 172.2578 2.13102286 3440 Glonass 48 1 21007U 90110 B 91139.07837490 .00000020 00000-0 99999-4 0 2064 2 21007 64.8580 147.0513 0038894 182.5517 177.4498 2.13100506 3466 Glonass 49 1 21008U 90110 C 91138.96121917 .00000020 00000-0 99999-4 0 1971 2 21008 64.8512 147.0552 0011745 288.9600 70.9341 2.13100520 3465 INFORMTR-1 1 21087U 91138.32550678 .00000158 00000-0 15508-3 0 814 2 21087 82.9398 255.8120 0035447 344.6908 15.3169 13.74382111 14921 Cosmos 2123 1 21089U 91 7 A 91137.90824027 .00000163 00000-0 16217-3 0 812 2 21089 82.9228 126.5540 0030267 6.7432 353.4126 13.73897721 13989 MOP-2 1 21140U 91 15 B 91131.19839655 .00000016 00000-0 99999-4 0 712 2 21140 1.0684 298.3688 0000795 185.9459 174.7345 1.00274034 490 Nadezhda 3 1 21152U 91 19 A 91137.87914005 .00000006 00000-0 00000 0 0 891 2 21152 82.9369 81.3495 0043456 108.0817 252.5093 13.73341661 9074 Progress M7 1 21188U 91 20 A 91127.38574978 .00019917 00000-0 19219-3 0 1380 2 21188 51.6080 134.3165 0007999 189.0700 171.0147 15.66446141298776 Almaz-1 1 21213U 91 24 A 91139.33369165 .00092961 47953-5 18116-3 0 1233 2 21213 72.7004 337.2962 0010823 251.3962 108.6847 16.00058653 7808 Cosmos 2139 1 21216U 91 25 A 91138.92056843 -.00000019 00000-0 99999-4 0 1024 2 21216 64.8184 27.5443 0007020 228.4850 131.5008 2.13103060 967 Cosmos 2140 1 21217U 91 25 B 91138.04071221 -.00000019 00000-0 99999-4 0 1014 2 21217 64.8090 27.5966 0010233 249.5625 110.4036 2.13102738 944 Cosmos 2141 1 21218U 91 25 C 91138.15832189 -.00000019 00000-0 99999-4 0 1060 2 21218 64.7985 27.5816 0008245 317.4820 42.4995 2.13101623 943 GRO 1 21225U 91 27 B 91138.45272466 .00018412 00000-0 44439-3 0 904 2 21225 28.4631 302.2636 0008738 39.4249 320.7082 15.39645098 6612 1991 028B 1 21228U 91 28 B 91137.50587232 .00000280 00000-0 99999-4 0 943 2 21228 24.0285 230.8996 1174425 341.2303 14.8144 12.46407679 4311 1991 028C 1 21229U 91 28 C 91137.77078938 -.00000056 00000-0 99999-4 0 886 2 21229 22.5949 11.1856 6907659 195.7593 120.8872 2.19693986 777 Cosmos 2142 1 21230U 91 29 A 91137.86344586 .00000125 00000-0 12442-3 0 854 2 21230 82.9562 319.3171 0036820 196.8852 163.1082 13.72307489 4341 1991 029B 1 21231U 91 29 B 91138.46701425 .00000445 00000-0 45674-3 0 882 2 21231 82.9499 318.7606 0035484 175.5095 184.6391 13.74560258 4411 Meteor 3-4 1 21232U 91 30 A 91137.77428073 .00000005 00000-0 00000 0 0 223 2 21232 82.5456 245.9829 0017183 126.9351 233.3350 13.15983814 3126 1991 030B 1 21233U 91 30 B 91132.29782852 .00000021 00000-0 42940-4 0 136 2 21233 82.5450 249.8464 0016840 140.7761 219.4583 13.16154658 2384 1991 030C 1 21234U 91 30 C 91134.35034069 .00000022 00000-0 44202-4 0 130 2 21234 82.5469 248.3977 0017475 136.1393 224.1132 13.16155200 2672 1991 031B 1 21244U 91 31 B 91122.58556712 -.00000602 00000-0 00000 0 0 46 2 21244 56.9944 270.0017 0011064 266.3904 107.3542 16.08953839 656 1991 031D 1 21245U 91 31 D 91133.75240635 .09395895 56565-4 16450-3 0 378 2 21245 56.9836 216.1599 0011302 304.2925 56.2183 16.46905487 2465 1991 031E 1 21246U 91 31 E 91131.73373634 .04960130 55085-4 55449-3 0 249 2 21246 56.9831 226.0924 0013248 303.3034 60.4477 16.36122716 2137 1991 031F 1 21247U 91 31 F 91133.65109578 .17409926 56947-4 79094-4 0 186 2 21247 57.0077 217.0305 0048393 342.1207 18.5972 16.51647483 2456 NOAA 12 1 21263U 91 32 A 91138.78935736 .00000653 00000-0 31648-3 0 113 2 21263 98.7351 168.4350 0011980 250.8868 109.0958 14.21381296 584 1991 032B 1 21267U 91 32 B 91138.08509885 .00006061 00000-0 27817-2 0 67 2 21267 98.7351 167.7379 0005665 221.9270 138.1487 14.21548732 489 1991 033A 1 21299U 91 33 A 91138.39359139 .00000022 00000-0 99999-4 0 98 2 21299 82.5743 225.2424 0010398 11.0722 349.0523 12.63600311 198 1991 033B 1 21300U 91 33 B 91137.76117736 .00000004 00000-0 00000 0 0 41 2 21300 82.5774 225.6495 0002013 17.0725 343.0457 12.62067059 107 Soyuz TM-12 1 21311U 91 34 A 91139.27443029 .00318287 46725-4 72077-3 0 49 2 21311 51.6059 74.1745 0043482 83.2609 277.3029 15.95205904 126 1991 034B 1 21312U 91 34 B 91139.07935100 .04244886 58735-4 81366-3 0 46 2 21312 51.6294 75.2061 0004772 149.7556 210.4400 16.31082326 98 -- Dr TS Kelso Assistant Professor of Space Operations tkelso@blackbird.afit.af.mil Air Force Institute of Technology ------------------------------ End of SPACE Digest V13 #612 *******************