Decay watch: May 8

Alan Pickup (alan@wingar.demon.co.uk)
Sat, 8 May 1999 17:43:51 +0100

OIG's elset feed suffered yet another interruption during the final
hours of these two decayers...
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Object: #8755 = 76- 24 B = Cosmos 808 r

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

SpaceCom   May  4 18:37     May  8 18:16 +-2d        27.6 N     3.4 W
SpaceCom   May  5 11:39     May  8 12:09 +-2d        29.6 S    79.3 E
SpaceCom   May  6 15:27     May  8 14:31 +-9h         9.2 S   129.9 W
SpaceCom   May  7 20:02     May  8 04:29 +-6h        52.9 S    32.3 E
SpaceCom   May  8 02:46     May  8 09:15 +-4h        25.1 S   124.1 E
SpaceCom   May  8 06:59     May  8 09:16 +-1h        18.5 S   124.9 E
SpaceCom   May  8 09:11     May  8 09:16 +-1h        18.5 S   124.9 E

SatEvo     Apr 28 21:00     May  9 19:00 +-3d
SatEvo     Apr 30 19:10     May  7 23:00 +-2d
SatEvo     May  3 15:15     May  8 05:00 +-1.2d
SatEvo     May  4 19:40     May  8 02:43 +-18h
SatEvo     May  5 19:45     May  8 04:12 +-18h
SatEvo     May  6 21:35     May  8 07:07 +-8h
SatEvo     May  7 21:40     May  8 09:29 +-3h        45.6 N   132.8 E
SatEvo     May  8 14:05     May  8 08:34 +-1h         0.0      42.3 W

Final elset:
Cosmos 808 r     3.8  2.6  0.0  5.1 v            140 x 128 km
1 08755U 76024B   99128.26628920  .20792725 -10210-5  17753-3 0  2913
2 08755  81.2006 131.9855 0009132 269.9502  90.1108 16.51884775277809

Note: The final elset has this 16 seconds early against the prediction
I posted here yesterday. I put decay near, or just beyond, a southbound 
equator crossing near the eastern tip of Brazil. It is possible, as
SpaceCom suggests, that it survived to decay further around that orbit.
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Object: #11553 = 79-  4 D = Molniya 3-11 r2

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

SpaceCom   May  5 01:15     May  8 15:40 +-2d        25.6 S   115.6 E
SpaceCom   May  5 21:21     May  8 18:22 +-2d         7.1 S   123.8 W
SpaceCom   May  6 17:09     May  8 07:57 +-7h        36.5 S    16.3 E
SpaceCom   May  7 14:08     May  8 14:25 +-15h       46.6 S    94.4 W
SpaceCom   May  8 02:06     May  8 14:31 +-8h        34.3 S    82.9 W
SpaceCom   May  8 09:49     May  8 15:55 +-5h        56.8 S   137.4 W
SpaceCom   May  8 12:20     May  8 14:30 +-2h        38.4 S    86.5 W
SpaceCom   May  8 15:14     May  8 14:30 +-36m       38.8 S    86.8 W

SatEvo     May  4 19:45     May  8 21:33 +-1.5d
SatEvo     May  5 20:00     May  8 23:00 +-1d
SatEvo     May  6 21:45     May  8 04:25 +-12h
SatEvo     May  7 21:55     May  8 15:55 +-8h        58.8 S   158.5 E
SatEvo     May  8 16:20     May  8 14:26 +-15m       48.0 S    97.1 W

Final elset:
Molniya 3-11 r2                                  402 x 79 km
1 11553U 79004D   99128.56283068  .99999999  98169-5  12373-2 0  3848
2 11553  61.9390  21.5922 0244075 287.1135 154.6687 16.12422986147139

Note: I believe that the final elset is for the final orbit and that
it survived only a short distance beyond the perigee on that rev.
Re-entry probably occurred SW of S America while northbound towards 
S Peru.
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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
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