Decay watch: Jun 1

Alan Pickup (alan@wingar.demon.co.uk)
Tue, 1 Jun 1999 20:15:10 +0100

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Object: #25745 = 99- 28 B = USA 144 Titan 4 r

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

SpaceCom   May 24 21:58     Jun  2 11:36 +-5d        63.4 S    94.0 W
SpaceCom   May 26 06:28     Jun  1 14:00 +-4d        47.1 N     3.3 W
SpaceCom   May 28 11:26     Jun  1 11:29 +-2d        19.2 N   172.6 E
SpaceCom   May 29 13:30     Jun  1 13:04 +-2d         6.9 S   161.8 E
SpaceCom   May 30 16:04     Jun  1 11:07 +-1d        54.4 N    52.3 E
SpaceCom   May 31 13:15     Jun  1 13:44 +-18h       12.1 S    37.8 W
SpaceCom   Jun  1 01:43     Jun  1 12:55 +-7h        30.9 N   143.4 E
SpaceCom   Jun  1 06:35     Jun  1 12:23 +-4h        12.2 N     4.9 W
SpaceCom   Jun  1 10:02     Jun  1 12:04 +-3h        53.3 S    48.5 W
SpaceCom   Jun  1 13:17     Jun  1 12:04 +-3h        53.3 S    48.5 W

SatEvo     May 25 12:00     Jun  3       +-3d
SatEvo     May 27 19:00     Jun  1 23:00 +-1.4d
SatEvo     May 28 21:25     Jun  1 02:43 +-20h
SatEvo     May 29 16:20     Jun  1 06:25 +-18h
SatEvo     May 30 13:40     Jun  1 07:49 +-12h
SatEvo     May 31 17:30     Jun  1 07:48 +-9h        16.5 S    49.3 E
SatEvo     May 31 22:10     Jun  1 10:05 +-4h         0.0     157.0 W

Final elset by Rainer Kracht:
USA 144 Titan 4 r                                218 x 170 km
1 25745U 99028  B 99150.86231871  .03320366  00000-0  61043-3 0    04
2 25745  63.3428  70.0083 0036379 178.3442 181.6510 16.29627002    03

Note: With no observations or released official elsets over the final 
15 hours, I have agree with SpaceCom (and Harro Zinner) that this 
probably decayed later than I estimated yesterday.
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Object: #20055 = 89- 43 D = Molniya 3-35 r2

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

SpaceCom   May 30 09:12     Jun  5 07:36 +-4d        14.4 S   136.3 E
SpaceCom   May 31 00:19     Jun  3 17:01 +-2d        21.3 S   161.6 E
SpaceCom   Jun  1 00:04     Jun  3 17:21 +-2d         4.4 S   165.5 E

SatEvo     May 30 13:30     Jun  3 15:00 +-2d
SatEvo     May 31 18:55     Jun  4 01:00 +-2d

Latest elset:
Molniya 3-35 r2                                  4020 x 87 km
1 20055U 89043D   99152.48640900  .49144242  38589-5  10414-2 0  8903
2 20055  63.4773 324.7703 2332332 246.6619 125.7185 11.21465975 56609

SatEvo prediction:
Molniya 3-35 r2                                  3518 x 84 km
1 20055U 89043D   99153.00104757  .55359677  54926-1  90761-3 0 98906
2 20055  63.4728 323.7654 2099411 246.6588  89.9441 11.73770999 56660
Molniya 3-35 r2                                  2983 x 84 km
1 20055U 89043D   99153.50054856  .65413881  82548-1  96032-3 0 98902
2 20055  63.4491 322.6981 1832475 246.6563  93.0592 12.33757521 56728

Note: The latest elset has it 4.3 minutes early on the prediction
I posted yesterday.
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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/