the last word on the decaying Atlas SGS stage, and the first decay
warning for the rocket from today's Soyuz launch...
_____________________________________________________________________
Object: #10960 = 77- 53 B = NTS 2 Atlas F r (SGS-1 stage)
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Apr 28 16:50 Apr 28 13:35 +-51m 32.8 N 39.0 W
SatEvo Apr 28 18:30 Apr 28 13:28 +-45m 20.8 N 46.4 W
Final elset:
NTS 2 Altas r 486 x 107 km
1 10960U 77053B 01118.39278963 .71796081 12041-4 10606-2 0 6663
2 10960 62.8042 1.7111 0283353 36.5390 86.9022 15.92081776385954
Note: The final elset shows this running 33 sec late against yesterday's
prediction. I suspect it survived the pass from NW France to Sweden
at about 12:12 UTC, with decay most likely on the approach to the
following perigee. This would have put it over the Altantic, to the N
of Brazil. My predicted elset for the last complete rev is:
NTS 2 Altas r 325 x 105 km
1 10960U 77053B 01118.49607658 1.82772267 62085+1 18078-2 0 96641
2 10960 62.7852 1.2771 0166540 36.5691 324.5566 16.21814869385977
_____________________________________________________________________
Object: #26750 = 01- 17 B = Soyuz TM-32 Soyuz-U rocket
Decay predictions:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom Apr 28 17:32 Apr 29 17:41 +-15h 48.5 N 32.3 W
SatEvo Apr 28 18:45 Apr 29 18:01 +-7h 20.5 S 41.7 E
Latest elset:
Soyuz TM-32 Soyuz-U r 211 x 180 km
1 26750U 01017B 01118.67825269 .05132451 12119-4 11069-2 0 51
2 26750 51.6168 338.5939 0023320 87.9372 272.4331 16.28952153 65
SatEvo prediction:
Soyuz TM-32 Soyuz-U r 207 x 177 km
1 26750U 01017B 01118.80087622 .05520103 14581-1 10528-2 0 90054
2 26750 51.6164 337.9107 0022356 88.4476 271.8085 16.30249880 80
Soyuz TM-32 Soyuz-U r 197 x 171 km
1 26750U 01017B 01119.04584083 .06901123 24249-1 98242-3 0 90052
2 26750 51.6156 336.5417 0020157 89.4703 270.7607 16.33263416 128
Soyuz TM-32 Soyuz-U r 185 x 162 km
1 26750U 01017B 01119.29029165 .09285922 43802-1 87468-3 0 90053
2 26750 51.6144 335.1689 0017416 90.4960 269.7036 16.37168513 166
Soyuz TM-32 Soyuz-U r 167 x 149 km
1 26750U 01017B 01119.53404355 .15780678 17363+0 58009-3 0 90053
2 26750 51.6128 333.7908 0013569 91.5257 268.6298 16.42916402 209
Soyuz TM-32 Soyuz-U r 160 x 144 km
1 26750U 01017B 01119.59482630 .20080389 31470+0 48852-3 0 90059
2 26750 51.6123 333.4451 0012167 91.7840 268.3554 16.45068870 210
Soyuz TM-32 Soyuz-U r 151 x 138 km
1 26750U 01017B 01119.65551644 .29092109 73004+0 42597-3 0 90059
2 26750 51.6115 333.0987 0010309 92.0429 268.0752 16.47973599 227
Soyuz TM-32 Soyuz-U r 137 x 127 km
1 26750U 01017B 01119.71606824 .61103651 37456+1 41870-3 0 90053
2 26750 51.6104 332.7513 0007310 92.3025 267.7812 16.52883260 234
Note: This, of course, is in the same orbital plane as the ISS and
STS-100, so if these are visible in your evening or morning twilight
sky, then so might be this rocket. It is lower, of course, so
eclipse entry/exit occurs earlier than it would for ISS/STS-100.
I show this decaying southbound about half way round the final
predicted orbit, above. This puts it southbound off SE Africa,
between Mozambique and Madagascar.
_____________________________________________________________________
Alan
--
Alan Pickup / COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl
Edinburgh / SatEvo & elsets: http://www.wingar.demon.co.uk/satevo/
Scotland / Decay Watch: http://www.wingar.demon.co.uk/satevo/dkwatch/
*
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This archive was generated by hypermail 2b29 : Sat Apr 28 2001 - 12:04:23 PDT