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) (->ota+space.digests) ID ; Mon, 15 Apr 91 01:47:50 -0400 (EDT) Message-ID: <0c2Hu0200WBwQK=043@andrew.cmu.edu> Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Mon, 15 Apr 91 01:47:44 -0400 (EDT) Subject: SPACE Digest V13 #409 SPACE Digest Volume 13 : Issue 409 Today's Topics: NASA Prediction Bulletins, Part 1 Re: anniversary CD-ROMs at ames Re: spacesuits (Was: Re: HST in-orbit Maintenance) "Bussard Ramjets" AKA duct space drives Looking for way to compute planetary positions SPACE Digest V13 #398 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: 14 Apr 91 07:35:21 GMT From: udecc.engr.udayton.edu!blackbird.afit.af.mil!tkelso@tut.cis.ohio-state.edu (TS Kelso) Subject: NASA Prediction Bulletins, Part 1 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 #834a - Alouette 1 1 00424U 62B-A 1 91 97.77243115 .00000455 00000-0 53244-3 0 3962 2 00424 80.4697 355.6293 0021753 235.1571 124.7515 13.67506380422957 ATS 3 1 03029U 67111 A 91 93.81179965 -.00000075 00000-0 99999-4 0 5187 2 03029 13.5606 18.7315 0015904 227.2492 132.4924 1.00272810 85705 Cosmos 398 1 04966U 71016 A 91102.39824290 .00111233 00000-0 53165-3 0 04922 2 04966 051.5128 179.5596 2059968 012.9474 351.7486 11.52119119625386 Starlette 1 07646U 75010 A 91 93.44257480 .00000039 00000-0 78106-4 0 2016 2 07646 49.8197 93.1645 0205678 69.9955 292.2957 13.82153533815927 LAGEOS 1 08820U 76039 A 91 96.40423579 .00000005 00000-0 99999-4 0 2180 2 08820 109.8368 95.5766 0044295 176.1760 183.8927 6.38664264 92661 GOES 2 1 10061U 77048 A 91101.78169883 -.00000257 00000-0 99999-4 0 5806 2 10061 8.7702 60.1271 0003940 21.8864 338.1519 1.00254745 52001 IUE 1 10637U 78012 A 91 96.91271659 -.00000180 00000-0 79862-4 0 2225 2 10637 32.7647 114.1073 1408277 1.1227 359.2449 1.00288027 9415 GPS-0001 1 10684U 78020 A 91 94.12726045 .00000004 00000-0 99999-4 0 6132 2 10684 63.9100 80.5188 0127729 200.5087 158.9536 2.00553735 81680 GPS-0002 1 10893U 78 47 A 91 95.62452119 -.00000022 00000-0 99999-4 0 3337 2 10893 64.2286 321.3429 0171523 23.6878 337.2440 2.00533155 94536 GOES 3 1 10953U 78062 A 91 96.12650824 .00000099 00000-0 99999-4 0 576 2 10953 7.6370 62.9750 0004047 105.1944 254.6952 1.00282591 13 SeaSat 1 1 10967U 78064 A 91 95.27361546 .00001856 00000-0 67477-3 0 4894 2 10967 108.0139 203.3023 0002536 236.1009 123.9911 14.36431515668387 GPS-0003 1 11054U 78093 A 91 93.87208620 -.00000021 00000-0 99999-4 0 3619 2 11054 63.7572 317.5496 0064217 116.9980 243.7057 2.00572381 91514 Nimbus 7 1 11080U 78098 A 91 86.73693432 .00000357 00000-0 35308-3 0 7370 2 11080 99.1750 349.9490 0009613 47.9953 312.2033 13.83526670627243 GPS-0004 1 11141U 78112 A 91 90.50727371 .00000004 00000-0 99999-4 0 1443 2 11141 63.8495 80.5318 0061558 311.4115 48.0539 2.00546501 90147 GPS-0005 1 11690U 80 11 A 91 96.12984738 .00000005 00000-0 99999-4 0 1057 2 11690 64.3367 82.6423 0122786 203.0830 156.3156 2.00551884 96112 GPS-0006 1 11783U 80 32 A 91 95.92533111 -.00000021 00000-0 99999-4 0 4068 2 11783 63.5636 316.9772 0162889 59.3932 302.2320 2.00576960 80196 GOES 5 1 12472U 81049 A 91 98.04615071 .00000136 00000-0 99999-4 0 663 2 12472 4.2014 72.1400 0003117 282.6346 77.4892 1.00252445 35183 Cosmos 1383 1 13301U 82 66 A 91 94.01230107 .00000267 00000-0 30280-3 0 6939 2 13301 82.9292 87.6399 0029159 78.0258 282.4149 13.67901179437435 LandSat 4 1 13367U 82 72 A 91 97.64637557 -.00000662 00000-0 -14187-3 0 7312 2 13367 98.1190 158.7152 0002426 313.2369 46.8725 14.57151214464186 IRAS 1 13777U 83 4 A 91 86.02437821 .00000362 00000-0 27469-3 0 9128 2 13777 99.0138 283.2803 0012313 329.1255 30.9195 13.98911137 86486 Cosmos 1447 1 13916U 83 21 A 91 92.20645934 .00000325 00000-0 33234-3 0 7871 2 13916 82.9430 158.3862 0039821 54.2150 306.2676 13.74129195402368 TDRS 1 1 13969U 83 26 B 91100.10074349 .00000127 00000-0 99999-4 0 3012 2 13969 5.1939 63.0926 0003641 326.8841 33.2484 1.00276471 2328 GOES 6 1 14050U 83 41 A 91101.03196172 .00000113 00000-0 99999-4 0 3984 2 14050 2.9783 74.7008 0001160 303.1214 57.1540 1.00282225 1127 OSCAR 10 1 14129U 83 58 B 91 97.32732770 .00000024 00000-0 99999-4 0 6462 2 14129 25.8493 151.9623 6008503 231.4593 58.2833 2.05882614 30790 GPS-0008 1 14189U 83 72 A 91 98.84920780 .00000003 00000-0 99999-4 0 9079 2 14189 63.5206 78.5948 0143419 225.3179 133.5023 2.00568376 56699 LandSat 5 1 14780U 84 21 A 91 97.81845130 .00000428 00000-0 99999-4 0 5798 2 14780 98.2413 159.0434 0008834 179.5307 180.5206 14.57093089377623 UoSat 2 1 14781U 84 21 B 91100.55782054 .00003994 00000-0 72541-3 0 9585 2 14781 97.9062 147.8519 0013177 26.3107 333.8550 14.66666030379531 GPS-0009 1 15039U 84 59 A 91 96.03099321 .00000002 00000-0 99999-4 0 1797 2 15039 63.2702 77.7993 0028346 227.0133 132.7493 2.00565525 49915 Cosmos 1574 1 15055U 84 62 A 91 97.75203706 .00000236 00000-0 24194-3 0 403 2 15055 82.9589 205.1434 0026109 221.8419 138.0748 13.73439146340507 GPS-0010 1 15271U 84 97 A 91 98.46913919 -.00000021 00000-0 99999-4 0 234 2 15271 63.0517 316.2993 0112602 332.3581 27.0967 2.00564412 47073 Cosmos 1602 1 15331U 84105 A 91 97.93987221 .00006103 00000-0 79876-3 0 5208 2 15331 82.5239 87.4148 0024819 90.2089 270.1960 14.80059440351658 NOAA 9 1 15427U 84123 A 91102.28360107 .00000955 00000-0 53396-3 0 7252 2 15427 99.1729 114.2159 0014121 248.7678 111.1989 14.12944064326211 GPS-0011 1 16129U 85 93 A 91 94.19940955 .00000003 00000-0 99999-4 0 7360 2 16129 64.0328 79.0760 0122680 147.7995 212.9546 2.00564583 40190 Mir 1 16609U 86017 A 91102.48688569 .00068943 00000-0 66604-3 0 03675 2 16609 051.6003 260.5991 0008063 166.2503 193.9391 15.65721029294874 SPOT 1 1 16613U 86 19 A 91 97.66870296 -.00006259 00000-0 -29409-2 0 2815 2 16613 98.6957 172.8047 0002216 30.3117 329.5568 14.19995629105726 Cosmos 1766 1 16881U 86 55 A 91 94.11649281 .00004333 00000-0 57529-3 0 3766 2 16881 82.5266 149.6880 0023061 117.5675 242.7920 14.79424493252131 EGP 1 16908U 86 61 A 91 97.19363411 -.00000043 00000-0 -30202-4 0 3443 2 16908 50.0083 72.1433 0011329 223.6359 136.3561 12.44393894211464 NOAA 10 1 16969U 86 73 A 91 97.93691543 .00001129 00000-0 50757-3 0 5672 2 16969 98.5720 123.9135 0014050 129.2742 230.9686 14.24039231236559 MOS-1 1 17527U 87 18 A 91102.18476769 -.00002470 00000-0 -18287-2 0 7763 2 17527 99.0744 175.4087 0001321 166.9941 193.4924 13.94850476210947 GOES 7 1 17561U 87 22 A 91 98.75349979 -.00000045 00000-0 99999-4 0 7547 2 17561 0.0537 120.5656 0007317 286.6767 312.8294 1.00272554 8533 Kvant-1 1 17845U 87 30 A 91101.72124468 .00075301 00000-0 70274-3 0 5297 2 17845 51.6073 264.5082 0012518 166.5567 193.5625 15.66536367229483 DMSP B5D2-3 1 18123U 87 53 A 91 97.93888475 .00001482 00000-0 79144-3 0 8932 2 18123 98.8151 289.5988 0013575 265.5561 94.4060 14.14491798196062 RS-10/11 1 18129U 87 54 A 91101.77718635 .00000548 00000-0 59013-3 0 5805 2 18129 82.9217 107.9361 0012309 18.7583 341.3991 13.72171787190482 Meteor 2-16 1 18312U 87 68 A 91101.89804429 .00000297 00000-0 25901-3 0 6210 2 18312 82.5529 53.5274 0012595 126.6124 233.6204 13.83761980184298 Meteor 2-17 1 18820U 88 5 A 91101.97922738 .00000181 00000-0 15094-3 0 4705 2 18820 82.5410 112.9383 0015594 200.6880 159.3653 13.84468190161527 DMSP B5D2-4 1 18822U 88 6 A 91 97.95845552 .00001148 00000-0 53743-3 0 8305 2 18822 98.6046 335.3019 0007369 131.9716 228.2091 14.21918253164701 Glonass 34 1 19163U 88 43 A 91 97.37178856 .00000020 00000-0 99999-4 0 2190 2 19163 64.9171 149.3326 0007129 198.2463 161.7991 2.13102539 22419 Glonass 36 1 19165U 88 43 C 91 96.49014360 .00000020 00000-0 99999-4 0 2104 2 19165 64.9045 149.3610 0004541 324.7890 35.2568 2.13102825 22392 AO-13 1 19216U 88 51 B 91 78.38609337 .00000215 00000-0 44351-3 0 2424 2 19216 56.8112 104.6916 7140389 249.8316 25.0884 2.09695125 21173 OKEAN 1 1 19274U 88 56 A 91 97.83090205 .00004275 00000-0 57987-3 0 834 2 19274 82.5134 244.9691 0020112 239.5124 120.4126 14.78566103148432 Meteor 3-2 1 19336U 88 64 A 91 98.88766015 .00000048 00000-0 10600-3 0 7187 2 19336 82.5420 68.2237 0016200 297.4131 62.5317 13.16916870129872 Glonass 39 1 19503U 88 85 C 91 96.97915507 -.00000018 00000-0 99999-4 0 1378 2 19503 65.4533 28.6814 0004478 198.6893 161.3003 2.13103690 19898 NOAA 11 1 19531U 88 89 A 91 99.26633402 .00001228 00000-0 69016-3 0 4775 2 19531 99.0242 53.5690 0012222 164.8291 195.3252 14.12059942130744 TDRS 2 1 19548U 88 91 B 91 89.96222724 .00000115 00000-0 99999-4 0 2353 2 19548 0.8252 79.5164 0002691 292.1952 348.3100 1.00279109 7797 Glonass 40 1 19749U 89 1 A 91 97.02056608 .00000020 00000-0 99999-4 0 9228 2 19749 64.8632 149.0086 0007196 272.1418 87.8421 2.13101908 17426 Glonass 41 1 19750U 89 1 B 91 97.07866039 .00000020 00000-0 99999-4 0 9749 2 19750 64.8813 149.0281 0007294 256.2915 103.7035 2.13102378 17421 GPS BII-01 1 19802U 89 13 A 91 58.17527061 .00000017 00000-0 99999-4 0 2319 2 19802 55.0455 187.3559 0050904 163.2354 196.8890 2.00558153 14865 Akebono 1 19822U 89 16 A 91 97.42320641 .00035886 00000-0 20258-2 0 9836 2 19822 75.0700 92.8347 4101369 31.4906 347.6673 7.26210626 20957 Meteor 2-18 1 19851U 89 18 A 91101.08966956 .00000466 00000-0 40853-3 0 4232 2 19851 82.5245 351.0991 0012668 250.6466 109.3304 13.84114412106772 MOP-1 1 19876U 89 20 B 91 83.49540771 .00000025 00000-0 99999-4 0 1840 2 19876 0.2910 50.4188 0001552 314.1531 355.4087 1.00273956 3471 TDRS 3 1 19883U 89 21 B 91 94.58139546 -.00000238 00000-0 99999-4 0 2360 2 19883 0.8522 80.1889 0004255 326.7120 313.3584 1.00263628 77817 GPS BII-02 1 20061U 89 44 A 91 58.00437706 -.00000034 00000-0 99999-4 0 2332 2 20061 54.8640 5.4895 0089842 183.4176 176.5173 2.00566400 12602 Nadezhda 1 1 20103U 89 50 A 91 97.88692303 .00000294 00000-0 30148-3 0 3159 2 20103 82.9569 67.7629 0036797 300.2981 59.4533 13.73673004 88176 -- Dr TS Kelso Assistant Professor of Space Operations tkelso@blackbird.afit.af.mil Air Force Institute of Technology ------------------------------ Date: 14 Apr 91 03:25:48 GMT From: dog.ee.lbl.gov!hellgate.utah.edu!caen!zaphod.mps.ohio-state.edu!rpi!news-server.csri.toronto.edu!utgpu!utzoo!sq!msb@ucbvax.Berkeley.EDU (Mark Brader) Subject: Re: anniversary Henry Spencer (April 12, in sci.space): > Lest we forget, today is the 20th anniversary of the first man in space. Mark Earnshaw: > Oops, that should be the 30th anniversary... Henry Spencer: > Oops indeed. 30th it is. > -- > And the bean-counter replied, | Henry Spencer @ U of Toronto Zoology > "beans are more important". | henry@zoo.toronto.edu utzoo!henry And the programmer replied, "Counting is more important." Followups directed to rec.humor (which I don't read). -- Mark Brader, SoftQuad Inc., Toronto, utzoo!sq!msb, msb@sq.com MARTIANS BUILD TWO IMMENSE CANALS IN TWO YEARS. Vast Engineering Works Accomplished in an Incredibly Short Time by Our Planetary Neighbors. -- N.Y.Times headline, August 27, 1911 ------------------------------ Date: 13 Apr 91 04:14:03 GMT From: mintaka!olivea!samsung!zaphod.mps.ohio-state.edu!lavaca.uh.edu!jetson.uh.edu!acsls@bloom-beacon.mit.edu (Eddie A. McCreary) Subject: CD-ROMs at ames Thanks to the guys at JPL and ames for providing the Voyager images for ftp. (And I was just starting to get some work done this semester :-)) I would like to hear from anyone who has come across any particulary good images. I don't have time to go through them all. Thanks in advance, -- Eddie McCreary |`The time has come,' the Walrus said, EMcCreary@uh.edu, Internet| `To talk of many things: EMcCreary@UHOU, BITNET |Of shoes-and ships-and sealing wax- University of Houston | Of cabbages-and-kings-' ------------------------------ Date: 13 Apr 91 18:39:25 GMT From: wuarchive!sdd.hp.com!news.cs.indiana.edu!maytag!xenitec!walter!fred@psuvax1.cs.psu.edu (Fred Walter) Subject: Re: spacesuits (Was: Re: HST in-orbit Maintenance) gwh@headcrash.Berkeley.EDU (George William Herbert) writes: >time now. That's what the Ames hardsuit uses. Disadvantages are that the >joints themselves weight a whole lot, leading to 100kg suits (not including >the life support!). But 100kg suits aren't a problem in a weightless environment (once you've actually got them up there). So this isn't that big of a disadvantage. fred -- School address : grwalter@watmath.waterloo.edu Home address : watmath.uwaterloo.ca!xenitec!walter!fred Can you say "Thesis Avoidance" boys and girls ? ------------------------------ Date: 14 Apr 91 23:14:28 GMT From: mips!pacbell.com!iggy.GW.Vitalink.COM!widener!netnews.upenn.edu!eniac.seas.upenn.edu!sadinoff@apple.com (Daniel Sadinoff) Subject: "Bussard Ramjets" AKA duct space drives I've been discussing with my astronomy prof the possibility and/or feasability of using Bussard Ramjets for interstellar travel. For those of you who are not up on your sci.space FAQs or your Larry Niven, Bussard Ramjets accellerate a spaceship to high speeds by gathering in interstellar hydrogen (somehow) and compressing it until fusion occurrs, and using the thrust of the fusion reaction to propel the ship faster. Naturally, the ship can't accellerate from a standing start, so some auxilliary drive is necessary to accellerate it to ramjet speeds. Questions: 1) How big would the scoop have to be? Eyeballing the problem tells me that given a constant hydrogen density, the necessary size of the scoop aperture would decrease with speed relative to the hydrogen medium, but how fast? I can't figure it yout. 2) Assuming the thing travels at significant fractions of lightspeed, the impacts of the individual hydrogen (atoms? molecules?) become a design obstacle. Is it possible to make a scoop out of an E-M field to gather the fuel so as to avoid this obstacle? 3) Has anyone actually looked into this in depth? If so, where can I get information? Thanks in advance Danny Sadinoff |If you can read this, you're not using the sadinoff@eniac.seas.upenn.edu |Hubble Space Telescope ------------------------------ Date: 15 Apr 91 01:32:50 GMT From: munnari.oz.au!mel.dit.csiro.au!latcs1!parhar@THEORY.TN.CORNELL.EDU (Ajeet Parhar) Subject: Looking for way to compute planetary positions Does anyone know where I can find algorithms which will allow the computation of the location of planetary bodies given, location on earth's surface, and some point in time ? - Ajeet Parhar Department of Computer Science and Computer Engineering, La Trobe University, ACSnet: parhar@latcs1.oz Bundoora, CSnet: parhar@latcs1.oz Victoria, 3083, ARPA: parhar%latcs1.oz.au@uunet.uu.net Australia UUCP: ...!uunet!munnari!latcs1.oz.au!parhar ------------------------------ ReSent-Message-ID: Resent-Date: Sun, 14 Apr 91 23:01:45 EDT Resent-From: Tommy Mac <18084TM@msu.edu> Resent-To: space+@andrew.cmu.edu Date: Fri, 12 Apr 91 02:16:30 EDT Reply-To: space+%ANDREW.CMU.EDU@msu.edu From: space-request+%ANDREW.CMU.EDU%CARNEGIE.BITNET@msu.edu Subject: SPACE Digest V13 #398 Comments: To: space+@ANDREW.CMU.EDU To: david polito <15432DJP@MSU.BITNET>, Tom McWilliams <18084TM@MSU.BITNET> Re: Teensy little point, hardly belongs in sci.space; >Boy are you confused. Certainly we're not a Cabinet level agency, but >we're still a federal agency, part of the Executive Branch. You may >recall that there are three branches of the federal government: >Congressional, Executive, and Judicial. NASA belongs exclusively in >the Executive Branch. You seem to have forgotten the other two branches: 4) Regulatory Branch (not checked by judicial) 5) Internal Revenue (not checked by anything) To beleive otherwise is to ignore fundamental facts of nature Tommy Mac 18084tm@msu Acknowledge-To: <18084TM@MSU> ------------------------------ End of SPACE Digest V13 #409 *******************