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 ; Fri, 8 Feb 91 01:50:37 -0500 (EST) Message-ID: Precedence: junk Reply-To: space+@Andrew.CMU.EDU From: space-request+@Andrew.CMU.EDU To: space+@Andrew.CMU.EDU Date: Fri, 8 Feb 91 01:50:33 -0500 (EST) Subject: SPACE Digest V13 #131 SPACE Digest Volume 13 : Issue 131 Today's Topics: Re: US buys Soviet reactor Re: The edge of the solar system "Magnum" Electronic Intelligence Satellite 70cm Retransmission of NASA Select NASA Prediction Bulletin Format NASA Prediction Bulletins, Part 1 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 ---------------------------------------------------------------------- Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 2 Feb 91 02:20:05 GMT From: zaphod.mps.ohio-state.edu!caen!umich!dgsi!gregc@tut.cis.ohio-state.edu (Greg Cronau) Organization: Cimage Corp, Ann Arbor, MI Subject: Re: US buys Soviet reactor References: <1913@odin.cs.hw.ac.uk>, <15859@reed.UUCP> Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu In article <15859@reed.UUCP> trost@reed.bitnet (Bill Trost,Box 607,ext 640,) writes: > >I'm not certain about satellite uses, but nuclear power sources are >used for long-distance probes (such as _Ulysses_), mostly because >there ain't that much sun way out, and possibly for reliability >reasons --- solar cells have to be exposed in order to function and >are therefore subject to damage from debris, whereas an RTG can (and >must be, for safety reasons) be encased. > >Bill Trost >trost@reed.bitnet, but probably trost%reed@cse.ogi.edu Also, an RTG continues to put out power even if some controller tells the probe to "point-away-from-the-sun". Re: Phobos. gregc@cimage.com ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: Sun, 3 Feb 91 20:10:35 EST From: John Roberts Organization: National Institute of Standards and Technology formerly National Bureau of Standards Disclaimer: Opinions expressed are those of the sender and do not reflect NIST policy or agreement. To: space@andrew.cmu.edu Subject: Re: The edge of the solar system >From: Paul.Blase@nss.FIDONET.ORG (Paul Blase) >Subject: The edge of the solar system >Date: 30 Jan 91 19:11:46 GMT >Organization: The NSS BBS, Pittsburgh PA (412) 366-5208 > JC> I suppose our spacecraft would yet have a way to go as > JC> Pluto is only of the order of 40 AU! An AU is about 150 Gm > JC> (150 million km). >I have seen several articles about a planned NASA mission: the TAU probe >(TAU stands for Thousand Astronomical Units). A very high tech device, >the probe would use ion thrusters to move a telescope similiar to the >Hubble out to 1k AU from the sun. Communications would be via laser >link. The main missions would be to get accurate parallax measurements on >distant stars and to check out the intersteller environment. Does anyone >else know anything more about this? >Paul Blase - via FidoNet node 1:129/104 >UUCP: ...!pitt!nss!Paul.Blase >INTERNET: Paul.Blase@nss.FIDONET.ORG Sounds interesting. It would be powered by a nuclear reactor, of course. I have a second-hand reference to a proposed probe designed to go out at least 100 AU (though it could be 1000). It uses two clever applications of celestial mechanics: the well-known slingshot effect, and the less-known fact that plunging deep into a gravitational well before expelling rocket reaction mass can greatly increase final velocity. The probe would first head for Jupiter, and use the slingshot effect to kill its solar orbital velocity. It would then fall toward the sun, passing within only a few million miles. (Obviously, it must be very heat tolerant! :-) At closest approach, it would fire its remaining thrusters, then shoot out of the solar system going far faster than any previous probe. Chemical propellants would probably be adequate. I suppose if they timed it right (once in twelve years), the probe could pass near Pluto. John Roberts roberts@cmr.ncsl.nist.gov ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 4 Feb 91 06:36:53 GMT From: celit!dave@ucsd.edu (Dave Smith) Organization: FPS Computing Inc., San Diego CA Subject: "Magnum" Electronic Intelligence Satellite Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu I saw a mention in Time of a satellite named "Magnum" which is supposed to be used for electronic eavesdropping. The blurb said that it had an antenna "the size of a baseball field." This sounds like a really large structure to be deploying automatically. Does anyone have any info on this beasty? -- David L. Smith FPS Computing, San Diego ucsd!celit!dave or dave@fps.com "You can"t build a national and international network using TCP/IP" --Laurie Bride, Boeing Computer Services ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 4 Feb 91 03:51:00 GMT From: agate!bionet!uwm.edu!spool.mu.edu!sdd.hp.com!elroy.jpl.nasa.gov!zardoz.cpd.com!dhw68k!ofa123!f1099.n261.z1.fidonet.org!Floyd.Fowler@ucbvax.Berkeley.EDU (Floyd Fowler) Organization: FidoNet node 1:261/1099 - B. A. Express, Odenton ME Subject: 70cm Retransmission of NASA Select Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu I may have posted this here before. If I have, Please forgive. I have heard that HAMs have a capability to receive NASA select and re- transmit it on 70cm. Does anyone know if this is being done. Would be especially interested if this were done in the Goddard Space Flight Center area. Thanks. --- * Origin: The B. A. Express, Severn, Md 21144, (301)551-4345 (1:261/1099) -- Floyd Fowler Internet: Floyd.Fowler@f1099.n261.z1.fidonet.org Compuserve: >internet:Floyd.Fowler@f1099.n261.z1.fidonet.org -------------------------------------------------------------------------- ------------------------------ Return-path: X-Andrew-Authenticated-as: 0;andrew.cmu.edu;Network-Mail Date: 2 Feb 91 03:14:34 GMT From: udecc.engr.udayton.edu!blackbird!tkelso@tut.cis.ohio-state.edu (TS Kelso) Organization: Air Force Institute of Technology; WPAFB, OH Subject: NASA Prediction Bulletin Format Sender: space-request@andrew.cmu.edu To: space@andrew.cmu.edu As a service to the satellite user community, the following description of the NASA Prediction Bulletin's two-line orbital element set format is uploaded to sci.space on a monthly basis. 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. The Celestial BBS may be accessed 24 hours/day at 300, 1200, or 2400 baud using 8 data bits, 1 stop bit, no parity. ============================================================================== Data for each satellite consists of three lines in the following format: AAAAAAAAAAA 1 NNNNNU NNNNNAAA NNNNN.NNNNNNNN +.NNNNNNNN +NNNNN-N +NNNNN-N N NNNNN 2 NNNNN NNN.NNNN NNN.NNNN NNNNNNN NNN.NNNN NNN.NNNN NN.NNNNNNNNNNNNNN Line 1 is a eleven-character name. Lines 2 and 3 are the standard Two-Line Orbital Element Set Format identical to that used by NASA and NORAD. The format description is: Line 2 Column Description 01-01 Line Number of Element Data 03-07 Satellite Number 10-11 International Designator (Last two digits of launch year) 12-14 International Designator (Launch number of the year) 15-17 International Designator (Piece of launch) 19-20 Epoch Year (Last two digits of year) 21-32 Epoch (Julian Day and fractional portion of the day) 34-43 First Time Derivative of the Mean Motion or Ballistic Coefficient (Depending on ephemeris type) 45-52 Second Time Derivative of Mean Motion (decimal point assumed; blank if N/A) 54-61 BSTAR drag term if GP4 general perturbation theory was used. Otherwise, radiation pressure coefficient. (Decimal point assumed) 63-63 Ephemeris type 65-68 Element number 69-69 Check Sum (Modulo 10) (Letters, blanks, periods = 0; minus sign = 1; plus sign = 2) Line 3 Column Description 01-01 Line Number of Element Data 03-07 Satellite Number 09-16 Inclination [Degrees] 18-25 Right Ascension of the Ascending Node [Degrees] 27-33 Eccentricity (decimal point assumed) 35-42 Argument of Perigee [Degrees] 44-51 Mean Anomaly [Degrees] 53-63 Mean Motion [Revs per day] 64-68 Revolution number at epoch [Revs] 69-69 Check Sum (Modulo 10) All other columns are blank or fixed. Example: NOAA 6 1 11416U 86 50.28438588 0.00000140 67960-4 0 5293 2 11416 98.5105 69.3305 0012788 63.2828 296.9658 14.24899292346978 Note that the International Designator fields are usually blank, as issued in the NASA Prediction Bulletins. -- Dr TS Kelso Assistant Professor of Space Operations tkelso@blackbird.afit.af.mil Air Force Institute of Technology ------------------------------ Date: 2 Feb 91 03:13:41 GMT From: udecc.engr.udayton.edu!blackbird!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 #804a - Alouette 1 1 00424U 62B-A 1 91 22.63115690 .00000183 00000-0 21101-3 0 3810 2 00424 80.4643 69.7266 0024539 69.0609 291.3157 13.67443814412686 ATS 3 1 03029U 67111 A 91 30.98589074 -.00000075 00000-0 99999-4 0 4990 2 03029 13.4809 19.2882 0015951 218.6535 141.2597 1.00272405 85072 Cosmos 398 1 04966U 71 16 A 91 31.37231313 .00068692 19327-4 36120-3 0 3702 2 04966 51.5324 10.0921 2112372 229.6895 109.9617 11.40447536617315 Starlette 1 07646U 75010 A 91 28.29680348 -.00000003 00000-0 45111-4 0 1897 2 07646 49.8272 350.2381 0206346 214.5737 144.1591 13.82149457806912 LAGEOS 1 08820U 76039 A 91 29.38311432 .00000006 00000-0 99999-4 0 1851 2 08820 109.8491 72.6190 0044532 190.3721 169.6186 6.38664322 88382 GOES 2 1 10061U 77048 A 91 31.97252510 -.00000259 00000-0 99999-4 0 5553 2 10061 8.6035 60.8958 0003097 311.6378 48.4282 1.00282096 51301 IUE 1 10637U 78012 A 91 23.13978275 -.00000183 00000-0 79862-4 0 1960 2 10637 32.6256 114.7252 1725545 2.3618 358.3998 1.00260873 8677 GPS-0001 1 10684U 78020 A 91 28.30998560 .00000005 00000-0 99999-4 0 5930 2 10684 63.8425 82.5988 0125124 198.5355 161.0857 2.00554365 80365 GPS-0002 1 10893U 78 47 A 91 27.80553930 -.00000023 00000-0 99999-4 0 3033 2 10893 64.3012 323.4289 0169555 23.5330 337.2347 2.00536730 93172 GOES 3 1 10953U 78062 A 91 31.30680009 .00000095 00000-0 99999-4 0 344 2 10953 7.5051 63.7866 0005542 126.3278 233.8229 1.00261305 7205 SeaSat 1 1 10967U 78064 A 91 31.61541323 .00000832 00000-0 32779-3 0 4569 2 10967 108.0275 71.8030 0003932 237.7003 122.3863 14.36158038659246 GPS-0003 1 11054U 78093 A 91 30.05426966 -.00000022 00000-0 99999-4 0 3436 2 11054 63.8067 319.5563 0060178 118.5993 242.0258 2.00571184 90238 Nimbus 7 1 11080U 78098 A 91 22.66237311 .00000081 00000-0 10254-3 0 7289 2 11080 99.1819 287.4257 0008389 216.2637 143.7949 13.83491964618380 GPS-0004 1 11141U 78112 A 91 21.19715647 .00000005 00000-0 99999-4 0 1110 2 11141 63.8289 82.6822 0059758 312.4828 47.0880 2.00549136 88751 GPS-0005 1 11690U 80 11 A 91 30.31183513 .00000006 00000-0 99999-4 0 924 2 11690 64.3090 84.6415 0121850 202.7545 156.7790 2.00553240 94796 GPS-0006 1 11783U 80 32 A 91 29.11627210 -.00000022 00000-0 99999-4 0 3442 2 11783 63.5992 319.0996 0153910 58.8830 302.6325 2.00567867 78854 GOES 5 1 12472U 81049 A 91 30.21158431 .00000107 00000-0 99999-4 0 411 2 12472 4.0314 72.8760 0002053 257.3206 102.7401 1.00226642 34505 SME 1 12887U 81100 A 91 30.98541724 .00262826 00000-0 10480-2 0 991 2 12887 97.5923 101.2471 0001215 245.1307 114.8697 15.85939835516868 Salyut 7 1 13138U 82 33 A 91 32.04068383 .00995918 15016-4 44575-3 0 7656 2 13138 51.5847 197.6957 0003653 285.0483 75.1496 16.21489113501036 Cosmos 1383 1 13301U 82 66 A 91 17.72036255 .00000102 00000-0 10757-3 0 6812 2 13301 82.9324 143.5538 0026702 292.8771 66.9565 13.67872057427006 LandSat 4 1 13367U 82 72 A 91 31.72540501 .00000992 00000-0 22984-3 0 6600 2 13367 98.1368 94.3872 0004178 133.8910 226.2627 14.57167431454587 IRAS 1 13777U 83 4 A 91 27.37439007 -.00000098 00000-0 -55594-4 0 8947 2 13777 99.0131 225.5920 0013283 128.2317 232.0046 13.98865409 78281 Cosmos 1447 1 13916U 83 21 A 91 29.94919749 .00000121 00000-0 11716-3 0 7774 2 13916 82.9412 204.4018 0036497 228.3569 131.4481 13.74092889393818 TDRS 1 1 13969U 83 26 B 91 30.29302420 .00000130 00000-0 99999-4 0 2516 2 13969 5.0207 63.8153 0002857 248.0049 112.2190 1.00281449 1623 GOES 6 1 14050U 83 41 A 91 30.22880250 .00000117 00000-0 99999-4 0 3561 2 14050 2.7945 75.2839 0008930 280.9511 79.1266 1.00280628 412 OSCAR 10 1 14129U 83 58 B 91 17.23522100 .00000054 00000-0 99999-4 0 6348 2 14129 25.9088 165.0333 5975208 209.5353 96.4473 2.05878895 29146 GPS-0008 1 14189U 83 72 A 91 30.04503528 .00000004 00000-0 99999-4 0 8940 2 14189 63.4799 80.7526 0144483 223.8565 135.0649 2.00569024 55316 LandSat 5 1 14780U 84 21 A 91 31.75758584 .00000428 00000-0 99999-4 0 5076 2 14780 98.2546 93.6393 0003544 117.2608 242.8966 14.57102346368007 UoSat 2 1 14781U 84 21 B 91 31.63919543 .00002026 00000-0 37677-3 0 9094 2 14781 97.9238 81.4346 0011258 240.8209 119.1983 14.66127495369431 GPS-0009 1 15039U 84 59 A 91 31.71322904 .00000003 00000-0 99999-4 0 1574 2 15039 63.2102 79.8390 0026086 226.6338 133.2268 2.00566511 48623 Cosmos 1574 1 15055U 84 62 A 91 31.60259596 .00000123 00000-0 12124-3 0 240 2 15055 82.9557 253.9185 0029088 48.5915 311.7755 13.73405876331422 GPS-0010 1 15271U 84 97 A 91 28.16728716 -.00000022 00000-0 99999-4 0 9941 2 15271 63.1064 318.5703 0112083 330.6330 28.7556 2.00562925 45663 Cosmos 1602 1 15331U 84105 A 91 31.32877152 .00005625 00000-0 75087-3 0 4667 2 15331 82.5397 149.3042 0021977 308.7788 51.1526 14.79270128341806 NOAA 9 1 15427U 84123 A 91 29.41265884 .00000686 00000-0 38981-3 0 6951 2 15427 99.1724 39.5924 0016118 93.8670 266.4359 14.12793408315929 Cosmos 1686 1 16095U 85 86 A 91 30.93061519 .00808595 13599-4 42583-3 0 9031 2 16095 51.5888 203.8044 0005022 285.5284 74.6859 16.19406520292255 GPS-0011 1 16129U 85 93 A 91 30.37968449 .00000004 00000-0 99999-4 0 7213 2 16129 64.0001 81.0428 0123248 148.2366 212.5933 2.00564212 38913 Mir 1 16609U 86 17 A 91 31.57402864 .00049062 00000-0 51162-3 0 2334 2 16609 51.6086 259.7748 0025005 184.7079 175.3062 15.63630105218500 SPOT 1 1 16613U 86 19 A 91 31.64789355 .00000881 00000-0 43193-3 0 2344 2 16613 98.7094 107.8643 0000358 221.9332 138.1844 14.20034836 96356 Cosmos 1766 1 16881U 86 55 A 91 32.01103535 .00000747 00000-0 99999-4 0 2946 2 16881 82.5182 207.4338 0021605 327.0779 32.9906 14.78725525242955 EGP 1 16908U 86 61 A 91 28.12289501 -.00000025 00000-0 99999-4 0 3365 2 16908 50.0122 284.4921 0011508 47.0943 313.0856 12.44391798202860 NOAA 10 1 16969U 86 73 A 91 31.04269348 .00000745 00000-0 34232-3 0 5422 2 16969 98.5782 58.6697 0012957 331.7026 28.3477 14.23875399227035 MOS-1 1 17527U 87 18 A 91 31.17235920 .00000176 00000-0 15588-3 0 7441 2 17527 99.0858 105.5368 0000326 12.9218 347.1966 13.94869556201044 GOES 7 1 17561U 87 22 A 91 28.94485066 -.00000045 00000-0 99999-4 0 7202 2 17561 0.0474 108.4352 0004871 256.4036 355.1674 1.00276110 7833 Kvant-1 1 17845U 87 30 A 91 31.89357072 .00072312 00000-0 73911-3 0 4622 2 17845 51.6148 258.1400 0032532 191.0366 169.0602 15.63692158218554 DMSP B5D2-3 1 18123U 87 53 A 91 31.93734992 .00000173 00000-0 99999-4 0 8380 2 18123 98.8106 224.4684 0015822 92.8741 267.4303 14.14302509186737 RS-10/11 1 18129U 87 54 A 91 31.92077519 .00000195 00000-0 20298-3 0 5118 2 18129 82.9286 159.5403 0011363 198.6212 161.4544 13.72140837180895 Meteor 2-16 1 18312U 87 68 A 91 31.61421389 .00000261 00000-0 22625-3 0 6011 2 18312 82.5576 109.2611 0012195 339.4105 20.6567 13.83725498174573 Meteor 2-17 1 18820U 88 5 A 91 31.44195393 .00000156 00000-0 12996-3 0 4483 2 18820 82.5430 169.0019 0018009 44.6683 315.5926 13.84413344151764 DMSP B5D2-4 1 18822U 88 6 A 91 31.94915318 .00001251 00000-0 58581-3 0 7781 2 18822 98.6145 270.8811 0006220 337.8396 22.2513 14.21730760155324 Glonass 34 1 19163U 88 43 A 91 31.67544267 .00000020 00000-0 99999-4 0 1520 2 19163 64.9194 151.5041 0007009 187.1093 172.8589 2.13102340 21017 Glonass 36 1 19165U 88 43 C 91 31.26310237 .00000020 00000-0 99999-4 0 1547 2 19165 64.9123 151.5286 0003709 343.0797 16.8573 2.13102451 21001 AO-13 1 19216U 88 51 B 91 12.58308178 .00000220 00000-0 99999-4 0 2350 2 19216 56.8342 115.9835 7102346 244.7572 28.8440 2.09694183 19799 OKEAN 1 1 19274U 88 56 A 91 31.83593107 .00005026 00000-0 69007-3 0 416 2 19274 82.5193 306.3332 0023467 94.5804 265.8182 14.78030772138682 Meteor 3-2 1 19336U 88 64 A 91 31.26988801 .00000022 00000-0 44251-4 0 7031 2 19336 82.5441 116.0812 0018494 102.6731 257.6496 13.16909618120975 Glonass 39 1 19503U 88 85 C 91 31.28286851 -.00000017 00000-0 99999-4 0 697 2 19503 65.4213 30.9087 0005798 204.6678 155.3116 2.13103134 18492 NOAA 11 1 19531U 88 89 A 91 30.38796273 .00000875 00000-0 49991-3 0 4495 2 19531 99.0128 344.3097 0012323 8.8858 351.2527 14.11881678121024 TDRS 2 1 19548U 88 91 B 91 26.13719519 .00000113 00000-0 99999-4 0 2321 2 19548 0.6690 81.0920 0003301 200.8851 77.9453 1.00274228 7155 Glonass 40 1 19749U 89 1 A 91 31.32401722 .00000020 00000-0 99999-4 0 8522 2 19749 64.8617 151.1783 0005277 272.5531 87.3642 2.13101843 16028 Glonass 41 1 19750U 89 1 B 91 31.38220924 .00000020 00000-0 99999-4 0 9085 2 19750 64.8839 151.2023 0005305 245.9509 113.9739 2.13102321 16020 GPS BII-01 1 19802U 89 13 A 91 13.80044442 .00000017 00000-0 99999-4 0 2294 2 19802 55.0382 189.1099 0051688 161.7372 198.4468 2.00554695 13973 Akebono 1 19822U 89 16 A 91 31.80641507 .00036250 00000-0 24367-2 0 9160 2 19822 75.0801 125.8810 4117940 74.5479 326.4157 7.21678353 16201 Meteor 2-18 1 19851U 89 18 A 91 31.54581467 .00000114 00000-0 97659-4 0 4029 2 19851 82.5165 46.5131 0016157 85.5309 274.7705 13.84052277 97156 MOP-1 1 19876U 89 20 B 91 12.68849133 .00000029 00000-0 99999-4 0 1773 2 19876 0.1927 15.8409 0002124 285.7731 58.3621 1.00282017 2762 TDRS 3 1 19883U 89 21 B 91 26.76472238 -.00000235 00000-0 99999-4 0 2292 2 19883 0.6920 81.5925 0001639 239.0287 39.2753 1.00276913 77134 GPS BII-02 1 20061U 89 44 A 91 14.12991735 -.00000034 00000-0 99999-4 0 2323 2 20061 54.8519 7.2546 0089983 183.1245 176.8410 2.00566408 11727 Nadezhda 1 1 20103U 89 50 A 91 31.23895583 .00000116 00000-0 11205-3 0 2998 2 20103 82.9619 116.9141 0038377 121.2910 239.2017 13.73641415 79027 GPS BII-03 1 20185U 89 64 A 91 22.44647055 .00000016 00000-0 99999-4 0 1743 2 20185 54.8920 189.5946 0021675 162.9072 197.1571 2.00570539 10469 GPS BII-04 1 20302U 89 85 A 91 12.99702874 -.00000025 00000-0 99999-4 0 1759 2 20302 54.4766 308.5061 0033132 328.8268 30.9957 2.00555701 9077 -- Dr TS Kelso Assistant Professor of Space Operations tkelso@blackbird.afit.af.mil Air Force Institute of Technology ------------------------------ End of SPACE Digest V13 #131 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