Decay watch: 2000 Sep 30 #2

From: Alan Pickup (alan@wingar.demon.co.uk)
Date: Sat Sep 30 2000 - 14:30:20 PDT

  • Next message: Alan Pickup: "Re: Small parade of three geosynchs"

    SpaceCom has issued a decay warning for #26403, the EchoStar 6 Centaur
    rocket, plus an updated one for the Cosmos 2373 Soyuz-U rocket - the
    latter decay having shifted earlier perhaps as a result of a geomagnetic
    storm today. I have updated my Decay Watch page in sympathy - here is a
    summary...
    _____________________________________________________________________
    
    Object: #26403 = 00- 38 B = EchoStar 6 Centaur r
    
    Current decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Sep 30 18:14     Oct  1 13:58 +-12h       16.2 S   113.0 W
    SatEvo     Sep 30 21:05     Oct  1 12:02 +-5h        23.0 S   107.1 W
    
    Latest elset:
    EchoStar 6 Centaur r                             2666 x 105 km
    1 26403U 00038B   00274.74818208  .99999999 -26929-4  36532-2 0  1052
    2 26403  26.4277 146.4346 1649500 265.7050 209.6470 12.69153359  2399
    
    SatEvo prediction:
    ...
    EchoStar 6 Centaur r                             1080 x 91 km
    1 26403U 00038B   00275.38183540 3.33386423  51479+1  36964-2 0 91051
    2 26403  26.3724 142.9536 0709876 271.5568  80.3303 14.94036565  2486
    EchoStar 6 Centaur r                             760 x 88 km
    1 26403U 00038B   00275.44798370 5.05375529  18325+2  39214-2 0 91052
    2 26403  26.3609 142.4986 0494003 272.3219  82.0327 15.47464178  2497
    
    Note: I show this decaying over the E Pacific soon after perigee
    on the final of these orbits.
    _____________________________________________________________________
    
    Object: #26553 = 00- 58 B = Cosmos 2373 Soyuz-U rocket
    
    Current decay predictions:
    Source   Prediction made    Predicted decay at      Latitude Longitude
                   UTC                UTC                  deg      deg
    SpaceCom   Sep 30 15:33     Oct  2 02:33 +-21h       37.2 N   153.6 E
    SatEvo     Sep 30 21:15     Oct  2 17:07 +-15h
    
    Latest elset:
    Cosmos 2373 Soyuz r                              242 x 185 km
    1 26553U 00058B   00274.57472118  .02923142  40103-5  10290-2 0    83
    2 26553  70.3622 190.6750 0042792  65.5208 353.4343 16.22305171   194
    _____________________________________________________________________
    
    
    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 : Sat Sep 30 2000 - 14:32:08 PDT