Decay watch: 2002 August 20

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Tue Aug 20 2002 - 14:24:56 EDT

  • Next message: Alan Pickup: "Re: Decay watch: 2002 August 20"

    The Meteor decay is still possible over Europe in a few hours. The 
    following is from my Decay Watch page.
    _____________________________________________________________________
    Object: #4119 = 69- 84 A = Meteor 1-2
    The second fully operational Soviet meteorological satellite
    launched on October 6, 1969. It was of the Meteor M-type.
    (Diameter :  2 m   Length :  5 m   Mass : 3800 kg)
    
    Notice prepared: 2002 Aug 20 18:15 UTC
    
    Decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                    UTC                UTC                  deg      deg
    SpaceCom   Aug 20 15:19     Aug 20 21:31 +-4h         4.7 N     0.0
    SatEvo     Aug 20 18:15     Aug 20 21:31 +-2h        19.1 N     1.4 E
    
    Latest elset:
    Meteor 1-2       5.0  1.5  0.0  5.8 v   12       162 x 146 km
    1 04119U 69084A   02232.59015102  .10643376 -97551-6  29647-3 0  5692
    2 04119  81.1154 290.5596 0012128 265.1424  94.8666 16.44480584721262
    
    SatEvo prediction:
    Meteor 1-2       5.0  1.5  0.0  5.8 v   12       143 x 132 km
    1 04119U 69084A   02232.77238453  .26684051  72915+0  27212-3 0 95694
    2 04119  81.1133 290.3007 0008562 264.4045  95.4979 16.50738278721292
    Meteor 1-2       5.0  1.5  0.0  5.8 v   12       129 x 122 km
    1 04119U 69084A   02232.83293679  .58197577  49024+1  31817-3 0 95691
    2 04119  81.1118 290.2140 0006092 264.1573  95.7732 16.55297933721306
    
    Note: The latest elset shows this running only 4.4 sec early against
    the prediction I posted yesterday. I now predict the decay for a
    northbound pass over Mali, northern Africa at the end of the final
    SatEvo-predicted rev above. If it stays in orbit a little longer there 
    is a pass a cross Europe from near Marseille, France, at 21:37 UTC to 
    Bremen, Germany, at 21:39 and just E of Oslo, Norway, at 21:41. SpaceCom 
    now has a very similar decay estimate. The uncertainty is still more 
    than one orbit either way.
    _____________________________________________________________________
    
    
    Alan
    -- 
    Alan Pickup / COSPAR 2707:  55.8968N   3.1989W   +208m   (WGS84 datum)
    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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