Re: Fw: siting

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It is difficult to link Jonathan Swiller's observation of December 4 at
21:25 with any known decayers. The three objects I show decaying nearest
that time are:
 24237 = 94- 29 LL  STEP-2 Pegasus deb  at about December  4.6 (UTC)
 21337 = 75- 52 BF  Nimbus 6 Delta deb  at about December  4.7
 25534 = 86- 17 MV  Mir deb             at       December  5.3

The first of these, the Pegasus debris, has an orbital plane which is
too far away. There was an elset for the Mir debris object with an epoch
almost three hours after the event, so this must be ruled out too. The
plane of the middle object is much better, but I am unable to link a
pass at the observed time with an evolution from the earlier elsets. For
the record, here are the final two published elsets for this:
Nimbus 6 Delta deb                               425 x 376 km
1 21337U 75052BF  98337.37692268  .07024166  00000-0  82395-1 0   410
2 21337  99.4469 121.0474 0036640 300.8143  58.9500 15.55614811394095
Nimbus 6 Delta deb                               407 x 359 km
1 21337U 75052BF  98337.82637751  .08901188  00000-0  82287-1 0   426
2 21337  99.4153 121.6057 0036008 298.8362  61.5052 15.61634577394163

Alan
-- 
 Alan Pickup | COSPAR 2707:   55d53m48.7s N   3d11m51.2s W   156m asl
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