Decay watch: Nov 19

Alan Pickup (alan@wingar.demon.co.uk)
Fri, 19 Nov 1999 20:42:56 +0000

Check my decay Watch page at
      http://www.wingar.demon.co.uk/satevo/dkwatch/
for predictions for the three current observable objects approaching
decay:

#22016= 92- 39 C = GPS 2-14 r2
  The first decay warning from SpaceCom predicts decay for Nov 23 05:06
UTC +-2d. I calculate a later time: Nov 24 01:52 +-1.2d. This enters
eclipse near southern apex at 35 deg S at ~20:00 local time and leaves
eclipse while northbound near 21 deg N at ~05:00 local time.

#25551 = 98- 69 C = MightySat
  My updated prediction is for decay at Nov 21 15:30 +-11h

#25934 = 98- 55 B = GPS 2R-3 Delta 2 r1
  SpaceCom has yet to issue a decay warning for this. I compute decay
for Nov 22 23:44 +-19h. This enters eclipse just after southern apex
near 32 deg S at ~20:00 local time. It should be a fast bright object as
it leaves eclipse on the approach to northern apex (and near perigee) at
30 deg N at ~05.00 local time. There are passes over the S USA on Nov 20
at 11:01 UTC over N Florida and 12:31 UTC above SW Texas. A SatEvo-
predicted elset for around then...
GPS2R-3 Dlt2 r1  5.9  2.4  0.0  5.0 d   14       383 x 160 km
1 25934U 99055B   99324.51082232  .04568046  37629-2  12537-2 0 90948
2 25934  33.3255  80.4994 0167694  56.3187 305.2694 16.00921734  6911


Alan
-- 
 Alan Pickup | COSPAR 2707:  55d53m48.7s N  3d11m51.2s W   156m asl
 Edinburgh   | Tel: +44 (0)131 477 9144     Fax: +44 (0)870 0520750
 Scotland    | SatEvo page:   http://www.wingar.demon.co.uk/satevo/

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