Decay watch: Mar 29 (Ir 11A S/D)

Alan Pickup (alan@wingar.demon.co.uk)
Mon, 29 Mar 1999 22:11:37 +0100

As happens rather too often, the OIG database stalled again on Saturday 
and only resumed again today. 
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Object: #25580 = 98- 74 D = Iridium 11A Smart Dispenser

Decay predictions:
Source   Prediction made    Predicted decay at      Latitude Longitude
               UTC                UTC                  deg      deg

SpaceCom   Mar 23 10:26     Apr  2 10:53 +-6d        50.3 S    25.0 W
SpaceCom   Mar 25 22:20     Apr  1 20:34 +-4d         5.8 S     5.8 E
SpaceCom   Mar 29 04:21     Apr  2 02:50 +-2d        78.2 N    70.0 W

SatEvo     Mar 23 20:40     Apr  2 00:00 +-2.5d
SatEvo     Mar 25 23:40     Apr  2 00:00 +-1.5d
SatEvo     Mar 29 22:00     Apr  1 23:26 +-16h       12.1 S    38.7 W

Latest elset:
Irid 11A S/D     4.0  2.0  0.0  5.5 d            271 x 170 km
1 25580U 98074D   99088.54290875  .02133108 -15483-5  61783-3 0  2101
2 25580  86.2977 145.4817 0076776 119.7239 241.3084 16.19755732 15718

SatEvo prediction:
Irid 11A S/D     4.0  2.0  0.0  5.5 d            262 x 167 km
1 25580U 98074D   99089.03682625  .02273607  20050-2  57847-3 0 92100
2 25580  86.2969 145.1992 0072277 117.5825 243.1534 16.21818840 15790
Irid 11A S/D     4.0  2.0  0.0  5.5 d            241 x 160 km
1 25580U 98074D   99090.02259023  .03131554  41247-2  55351-3 0 92107
2 25580  86.2951 144.6324 0061621 113.2871 247.3627 16.27045609 15957
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Alan
-- 
 Alan Pickup | COSPAR 2707:   55d53m48.7s N   3d11m51.2s W   156m asl
 Edinburgh   | Home:   alan@wingar.demon.co.uk    +44 (0)131 477 9144
 Scotland    | SatEvo page:     http://www.wingar.demon.co.uk/satevo/