Decay watch: Irid 45 Delta and C 2351 Molniya rockets

Alan Pickup (alan@wingar.demon.co.uk)
Tue, 23 Jun 1998 23:27:17 +0100

The Iridium Delta 2 was running 22 seconds late on yesterday's
prediction at the epoch of the latest elset from OIG:
Iridm 45 Delta r 5.9  2.4  0.0  5.6 d            155 x 142 km
1 25109U 97082F   98174.77456654  .13039629 -14508-5  26066-3 0  3079
2 25109  83.5732 182.0339 0009794 277.9391  83.0864 16.46560789 28966
I predict decay for June 23.92 (22.00 UTC, just about now) and the
following final elset
Iridm 45 Delta r 5.9  2.4  0.0  5.6 d            125 x 120 km
1 25109U 97082F   98174.89560613  .84193216  12205+2  39667-3 0 93071
2 25109  83.5702 181.9086 0003986 277.4145  82.5402 16.56566836 28983


The Molniya is running 17 seconds late against yesterday's prediction at
this OIG elset:
C 2351 Moln r1   6.0  2.0  0.0  5.0 d            235 x 179 km
1 25328U 98027B   98174.67760315  .02590493  85087-5  73082-3 0  1787
2 25328  62.8326 125.2817 0042488 119.8150 240.7451 16.24549255  7526
I now predict decay for June 25.5 (12:00 UTC +- 9h).
Predicted elsets:
C 2351 Moln r1   6.0  2.0  0.0  5.0 d            225 x 176 km
1 25328U 98027B   98175.04660496  .03564773  67581-2  83249-3 0 91782
2 25328  62.8319 123.7784 0037834 119.8848 240.4916 16.27050491  7588
C 2351 Moln r1   6.0  2.0  0.0  5.0 d            210 x 169 km
1 25328U 98027B   98175.53767595  .05052532  15223-1  84276-3 0 91787
2 25328  62.8304 121.7686 0030560 119.9783 240.3254 16.31185719  7669
C 2351 Moln r1   6.0  2.0  0.0  5.0 d            199 x 165 km
1 25328U 98027B   98175.78267938  .06529854  26842-1  84532-3 0 91781
2 25328  62.8296 120.7607 0026185 120.0253 240.2345 16.33988707  7709
C 2351 Moln r1   6.0  2.0  0.0  5.0 d            185 x 158 km
1 25328U 98027B   98176.02719408  .09518951  60896-1  83975-3 0 91789
2 25328  62.8284 119.7502 0020928 120.0725 240.1352 16.37811374  7741
C 2351 Moln r1   6.0  2.0  0.0  5.0 d            164 x 146 km
1 25328U 98027B   98176.27098249  .18382039  25240+0  51439-3 0 91787
2 25328  62.8263 118.7356 0013819 120.1199 240.0171 16.44135481  7789

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