From g1yyh@amiga.g1yyh Tue Jan 15 23:07:40 1991 Received: from amiga.g1yyh by amiga.G1YYH with SMTP id AA4311 ; Tue, 15 Jan 91 23:07:38 GMT Received: by amiga.G1YYH (900214 (G1YYH v2.5)) id AA4309 ; Tue, 15 Jan 91 23:07:33 GMT Date: Tue, 15 Jan 91 23:07:33 GMT Message-Id: From: g1yyh@amiga.G1YYH To: space@gbr.eu Subject: SpaceNews spc0114 - 1/3 X-BBS-Msg-Type: B X-Forwarded-To: gb7crg X-Forwarded-To: gb7tcp ========= SpaceNews ========= MONDAY JANUARY 14, 1991 SpaceNews originates at KD2BD in Wall Township, New Jersey, United States. It is published every week and is made available for unlimited distribution. * SALYUT-7 NEWS * ================= The abandoned Soviet space station Salyut-7 is losing altitude rapidly and is expected to re-enter the Earth's atmosphere shortly. Salyut-7 was launched on 19-Apr-82 from the USSR, and its orbit has dropped 125 kilometers in altitude in the past year. The following chart illustrates the rapid decay of Salyut-7: Date Epoch Mean Motion Decay Rate Mean Altitude (km) 04Oct90 90 275 15.74591875 0.00048781 345.861317 11Oct90 90 283 15.75692165 0.00075804 342.730818 18Oct90 90 290 15.77179921 0.00118039 338.503706 24Oct90 90 296 15.78544938 0.00100890 334.631165 01Nov90 90 304 15.79911872 0.00087634 330.758778 08Nov90 90 310 15.81020057 0.00087992 327.623495 14Nov90 90 318 15.82804120 0.00111688 322.583704 21Nov90 90 324 15.84350908 0.00134970 318.221848 29Nov90 90 330 15.85642314 0.00095251 314.585590 06Dec90 90 338 15.87308204 0.00120043 309.902161 13Dec90 90 346 15.89855946 0.00176075 302.755350 20Dec90 90 352 15.91896486 0.00174533 297.045069 27Dec90 90 361 15.95063508 0.00196572 288.206543 Salyut-7 carries an object number of 13138 and has been heard transmitting telemetry on a frequency of 19.954 MHz. COSMOS 1686 (object 16095) is also in a similar orbit and is expected to decay with Salyut-7. A good approximation for predicting the re-entrance date for Salyut-7 is given by the formula: Epoch + (16.666666 - Mean Motion) / (Decay Rate * 10) This places the re-entrance date around 01Feb91. From g1yyh@amiga.g1yyh Tue Jan 15 23:07:40 1991 Received: from amiga.g1yyh by amiga.G1YYH with SMTP id AA4311 ; Tue, 15 Jan 91 23:07:38 GMT Received: by amiga.G1YYH (900214 (G1YYH v2.5)) id AA4309 ; Tue, 15 Jan 91 23:07:33 GMT Date: Tue, 15 Jan 91 23:07:33 GMT Message-Id: From: g1yyh@amiga.G1YYH To: space@gbr.eu Subject: SpaceNews spc0114 - 2/3 X-BBS-Msg-Type: B X-Forwarded-To: gb7crg X-Forwarded-To: gb7tcp * CRRES NEWS * ============== NASA will use the Combined Release and Radiation Effects Satellite (CRRES) this month to study the Earth's ionosphere and magnetosphere. CRRES will release chemicals in space that will produce clouds of artifically injected charged particles, which when illuminated by the sun, will produce brightly colored patches in the night sky. The patches should be about the size of the full moon and be nearly as bright. The releases should be visible from the entire continental US, most of Canada, Central America, the Caribbean, and much of South America. The clouds may also be visible low in the western skies from western Africa and Europe several hours before dawn. A total of seven releases are planned, three in which lithium will produce a red glow and four of barium, which will glow green and purple. The release opportunities will occur on the nights of January 10, 12, 14, 15, 17, 19, 21, 23, 24, and 25. Exact times are tentative, but should occur around 8:45 PM EST. Here is a set of Keplerian data for tracking the CRRES spacecraft: CRRES 1 20712U 91 1.18045573 .00000791 00000-0 77598-3 0 836 2 20712 18.2613 341.9621 7125628 321.1119 4.7208 2.43677978 3906 * U2MIR NEWS * ============== Joel Magid, N1HZH, reports that U2MIR QSLs should be addressed to: Leonid Labutin Veshiakovskaya St. 11-1 56 111539 Moscow USSR * TNX QSL! * ============ A special thanks to all those who sent QSLs and letters to SpaceNews: NY7P : Mona Singleton, Vancouver, Washington, U.S.A. WA9BZW : Al Hovey, Jr., Madison, Wisconsin, U.S.A. ....and e-mail messages: LA1KP, KA2QHD, WA2JRV, RW3DZ, N4SDC, KR4V, W4AT From g1yyh@amiga.g1yyh Tue Jan 15 23:07:40 1991 Received: from amiga.g1yyh by amiga.G1YYH with SMTP id AA4311 ; Tue, 15 Jan 91 23:07:38 GMT Received: by amiga.G1YYH (900214 (G1YYH v2.5)) id AA4309 ; Tue, 15 Jan 91 23:07:33 GMT Date: Tue, 15 Jan 91 23:07:33 GMT Message-Id: From: g1yyh@amiga.G1YYH To: space@gbr.eu Subject: SpaceNews spc0114 - 3/3 X-BBS-Msg-Type: B X-Forwarded-To: gb7crg X-Forwarded-To: gb7tcp * FEEDBACK WELCOMED * ===================== Feedback regarding SpaceNews can be directed to the editor (John) via any of the following paths: INTERNET : kd2bd@ka2qhd.de.com PACKET : KD2BD @ NN2Z.NJ.USA.NA UUCP : ...uunet!rutgers!ka2qhd!kd2bd MAIL : John A. Magliacane, KD2BD Department of Electronics Technology Advanced Technology Center Brookdale Community College 765 Newman Springs Road Lincroft, New Jersey 07738 U.S.A. Cheers, John. /// A M M I GGGGG A | John Heaton G1YYH@GB7CRG.GBR.EU /// AA MM|MM I G AA | /// A A M M M I G GGG A A | Bolton, Lancashire. IO83sn /// AAAA M M I G G AAAA | \\\ /// A A M M I GGGGG A A | amiga.G1YYH.ampr.org [44.131.1.71] \\\/// | \/// DOES IT BETTER !! | JANET: J.Heaton@uk.ac.MCC