_____________________________________________________________________
Object: #15027 = 84- 55 A = Cosmos 1569
Final decay analyses:
Source Prediction made Predicted decay at Latitude Longitude
UTC UTC deg deg
SpaceCom May 7 04:13 May 7 03:14 +-15m 13.0 S 16.4 E
SatEvo May 7 07:30 May 7 03:07 -2+15m 0.0 10.3 E
Final elsets:
Cosmos 1569 512 x 76 km
1 15027U 84055A 01127.06167440 .12677474 78657-5 42237-4 0 9017
2 15027 62.1803 102.3935 0327186 249.2527 248.5980 15.92961819124899
Cosmos 1569 175 x 51 km
1 15027U 84055A 01127.11301274 .71855109 88759-5 17116-4 0 9029
2 15027 62.1718 102.1608 0095323 241.4976 197.8690 16.60038270124904
Note: This survived for two or three orbits longer than I expected and
showed a considerable decrease in drag over that period. I suspect that
it lost some appendages (solar panels, antennae?) at an earlier perigee
so that its effective cross sectional area fell, making it less
susceptible to drag and giving it a stay of execution. The final elset,
with its remarkably low perigee, corresponds to a passage near apogee
over Canada. Like SpaceCom, I think that decay was most likely as it
tracked southwards across the equator from Gabon to Angola in Africa a
few minutes later.
_____________________________________________________________________
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 : Mon May 07 2001 - 00:45:47 PDT