Decay watch: 2001 Jun 3

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sun Jun 03 2001 - 03:07:01 PDT

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    _____________________________________________________________________
    Object: #26776 = 01- 22 B = Cosmos 2377 Soyuz-U rocket
    
    Final decay analyses:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Jun 02 20:12     Jun 02 20:04 +-1h        53.9 N    81.9 E
    SatEvo     Jun 03 10:00     Jun 02 20:09 +-30m       21.2 N   105.5 E
    
    Final elsets:
    Cosmos 2377 Soyuz r                              204 x 137 km
    1 26776U 01022B   01153.57053687  .06405446  61662-5  17573-3 0   312
    2 26776  67.1063 129.3952 0050928  95.1114 265.2841 16.38264801   624
    Cosmos 2377 Soyuz r                              168 x 121 km
    1 26776U 01022B   01153.75291698  .18601924  62976-5  17049-3 0   328
    2 26776  67.0974 128.7928 0036009  94.6034 265.9936 16.48006897   654
    
    Note: The final elset has this running 24 sec late against the 
    prediction I posted a few hours before. In my opinion, at least one 
    of the final four published elsets is bad - my suspicion falls
    on the penultimate elset (above) which indicates a too-low drag 
    and has the object about 8 seconds later than expected at that time.
    My estimated elset for the beginning of the final rev is:
    Cosmos 2377 Soyuz r                              134 x 105 km
    1 26776U 01022B   01153.81334655  .78820339  46473+1  27666-3 0 90329
    2 26776  67.0951 128.5745 0022171  94.5353 265.7179 16.57466700   663
    I put the decay southbound near northern Vietnam following a pass 
    across China. The orbit might have continued across Malaysia,
    Indonesia and Western Australia.
    _____________________________________________________________________
    
    
    Alan
    -- 
    Alan Pickup / COSPAR 2707:  55d53m48.7s N   3d11m51.2s W      156m asl
    Edinburgh  / SatEvo & elsets:    http://www.wingar.demon.co.uk/satevo/
    Scotland  / Decay Watch: http://www.wingar.demon.co.uk/satevo/dkwatch/
             *
    
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    This archive was generated by hypermail 2b29 : Sun Jun 03 2001 - 03:36:40 PDT