Decay watch: 2001 Feb 4

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sun Feb 04 2001 - 15:06:39 PST

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    SpaceCom has posted the first decay warning for the GPS 47 Delta 2
    rocket which is making visible passes in the evening sky across middle
    latitudes in the USA, southern Europe and southern Australia. The
    following is taken from my Decay watch page...
    _____________________________________________________________________
    Object: #26606 = 00- 71 B = GPS 47 Delta 2 rocket
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Feb  4 18:10     Feb  8 14:33 +-2d        21.3 S   145.0 E
    SatEvo     Feb  4 22:55     Feb  9 00:49 +-1.2d
    
    Latest elset:
    GPS 47 Delta r   7.0  2.0  0.0  5.5 d   15       424 x 164 km
    1 26606U 00071B   01035.72468494  .03189595  39504-5  11145-2 0  1588
    2 26606  37.5324 317.4949 0194714 142.3771 219.0848 15.93027604 12916
    
    SatEvo prediction:
    GPS 47 Delta r   7.0  2.0  0.0  5.5 d   15       414 x 163 km
    1 26606U 00071B   01036.03783727  .03167135  15873-2  10506-2 0 91587
    2 26606  37.5319 315.3764 0188041 145.2414 216.0014 15.94908591 12965
    GPS 47 Delta r   7.0  2.0  0.0  5.5 d   15       397 x 162 km
    1 26606U 00071B   01036.53808628  .03433451  19889-2  10336-2 0 91589
    2 26606  37.5312 311.9795 0176773 149.8342 211.1955 15.98205521 13040
    GPS 47 Delta r   7.0  2.0  0.0  5.5 d   15       379 x 160 km
    1 26606U 00071B   01037.03725944  .03774427  26102-2  10158-2 0 91583
    2 26606  37.5303 308.5730 0164624 154.4399 206.3831 16.01795660 13128
    
    Note: This is well placed near 37 deg N as it enters eclipse in the
    evening sky just after northern apex. Eclipse exit occurs near 35 
    deg S as it approaches southern apex before dawn.
    _____________________________________________________________________
    
    
    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 Feb 04 2001 - 15:08:30 PST