Re: Decay watch: 2001 May 6

From: Phillip Clark (psclark@dircon.co.uk)
Date: Sun May 06 2001 - 09:23:51 PDT

  • Next message: Harro Zimmer: "Decay Forecast Cosmos 1569"

    On Sun, 6 May 2001, Alan Pickup wrote:
    > I note that OIG is listing Cosmos 2370 (#26354 = 00- 23 A) as "decayed"
    > on May 4. The final elset I have for this is:
    > 
    > Cosmos 2370      6.0  3.0  0.0  4.5 d   17       249 x 204 km
    > 1 26354U 00023A   01123.80485933  .00492828  73836-5  27378-3 0  1595
    > 2 26354  64.6874 192.5694 0033862 295.6316  64.0775 16.17588148 58547
    > If it had not been deorbited, and had made no further manoeuvres, its
    > natural decay would have been about May 15.
    
    Since the last element set was for May 3rd and the optimum de-orbit pass
    on the 4th was around 20.32 GMT, I would have expected at least one
    subsequent element set to have been issued on the 4th.
    
    My guess is that the satellite was de-orbited on May 3rd with a final
    northbound equator crossing at about 20.48 GMT.
    
    Similarly, USSPACECOM seems to have the re-entry date for Cosmos 2372
    incorrect by one day.   That satellite seems to have been de-orbited with
    a final equator crossing about 18.30 GMT on April 19th althought
    USSPACECOM shows re-entry for the following day.
    
    Phillip Clark
    
    ---------------------------------------------------------------------------
    Phillip S Clark                                     22 Winterbourne Close
    Molniya Space Consultancy                           Hastings
    Compiler/Publisher, Worldwide Satellite Launches    E Sussex  TN34 1XG
                                                        U.K.
    
    Specialist in "space archeology" - the older and more obscure the more 
    interesting it is !
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