Cosmos 2367 decayed

From: Harro Zimmer (Harro.Zimmer@t-online.de)
Date: Sat Jul 20 2002 - 06:22:00 EDT

  • Next message: Harro Zimmer: "Re.: Cosmos 2367 decayed"

    Report time 09:30 UTC
    
    1999-072A (#26040) COSMOS 2367
    
    SPACECOM'S FINAL REPORT -prepared July 20, 00:11 UTC - shows
    the decay on
    20 July, 00:04 UTC +/- 07 minutes (42.0S, 216.0E)
    descending over the South Pacific.
    
    MPM+REENTRY delivers with the ELSETs 02200.741... - 02200.843...
    (SFX 182, ap 020) the decay on
    20 July, 00:37 UTC +/- 17 minutes (00.72N, 02.62E)
    ascending over the Atlantic Ocean near the African coast.
    
    SPACECOM'S prediction seems a little bit better then my own.
    I suspect a systematic bug within my calculations (Wrong sign 
    for the differential corrections?). Two other atmosphere density models
    show an earlier decay (00:03 and 00:07 UTC).
    
    Despite his complex structure Cosmos 2367 shows a very smooth
    decay behaviour. Starting 03 days before reentry the prediction
    deviations were smaller then one rev:
    
    Time                  SPACECOM       My own
    03 days before        + 65 min        ---
    02  "    "            - 13 min       - 85 min
    01  "    "            + 52 min       + 42 min
    12 hours "            + 57 min       + 47 min
    06 hours "            + 27 min       + 39 min
    02 hours              + 25 min       + 36 min
    Decay                   00 min       + 33 min
    
    Harro
    
    Harro.Zimmer@t-online.de
    Berlin, Germany
    
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