Decay watch update: Asiasat 3S Proton r

Alan Pickup (alan@wingar.demon.co.uk)
Mon, 22 Mar 1999 07:50:18 +0000

An update on the AsiaSat Proton decay...

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Object: #25658 = 99- 13 B = AsiaSat 3S Proton r

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

SpaceCom   Mar 21 08:32     Mar 22 15:01 +-19h       35.2 S     9.6 W
SpaceCom   Mar 21 12:35     Mar 22 11:08 +-14h        7.9 S   170.2 W
SpaceCom   Mar 22 01:47     Mar 22 14:17 +-8h        34.1 N   179.9 W

SatEvo     Mar 21 19:45     Mar 21 15:15 +-10h       43.5 S    83.9 E
SatEvo     Mar 22 07:30     Mar 21 13:11 +-3h        23.9 N    36.7 W

Latest elset:
AsiaSat 3S Proton r                              178 x 145 km
1 25658U 99013B   99081.22140003  .08007933  12422-4  26067-3 0    87
2 25658  51.5914 182.9812 0025188 266.5146  93.4466 16.41768492   200

Predicted elsets:
AsiaSat 3S Proton r                              169 x 138 km
1 25658U 99013B   99081.28215061  .13928182  14284+0  27576-3 0 90082
2 25658  51.5910 182.6355 0023361 266.7732  92.9595 16.44646907   216
AsiaSat 3S Proton r                              162 x 135 km
1 25658U 99013B   99081.34288092  .17184909  23560+0  25858-3 0 90086
2 25658  51.5904 182.2892 0021216 267.0324  92.7247 16.46519988   222
AsiaSat 3S Proton r                              154 x 130 km
1 25658U 99013B   99081.40353439  .22965800  45925+0  24683-3 0 90088
2 25658  51.5898 181.9422 0018550 267.2921  92.4956 16.48916284   238
AsiaSat 3S Proton r                              143 x 123 km
1 25658U 99013B   99081.46408490  .36040764  12247+1  24461-3 0 90086
2 25658  51.5889 181.5945 0014916 267.5524  92.2768 16.52361954   241
AsiaSat 3S Proton r                              122 x 110 km
1 25658U 99013B   99081.52446932  .86915979  96597+1  26316-3 0 90081
2 25658  51.5872 181.2454 0008957 267.8137  92.0837 16.58897053   252

Note: This passes just N of Vancouver at 12:54 UTC on what I take to 
be its final rev. The track takes it over Quebec at 13:02 UTC in 
almost a replay of yesterday's decay of the platform from this launch.
It could still survive into the next orbit.
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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/