Who is the decayer #22067 ?

From: Harro.Zimmer (Harro.Zimmer@t-online.de)
Date: Thu Dec 21 2000 - 05:00:06 PST

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    1992-047H (#22067) Proton AUX MOT (Name given by SPACECOM)  
    Decay (as SPACECOM reported):  19 December, 09:06 UTC +/- 02 hours
    
    Bjrn Gimle remarked: "Was this really a rocket (admittedly a small final stage)?
    Whith this drag magnitude (and Bstar = 0.11, about one thousend times as high
    as a normal satellite/rocket) it seems more like a sheet of metal debris, or an
    empty discarded tank ?"
    
    Right! My approach for a decay prediction with MPM + REENTRY based on the normal
    input parameters for an Auxiliary Motor showed an unrealistic result (a more
    then 2 days later decay). 
    With the last five ELSETs I calculated the ballistic coefficient of #22067. The 
    result: About only 1 kg / m drag area. A typical value for debris. Also the RCS 
    (0.2834 m) looked like debris. The "normal" RCS values for the Auxiliary Motors 
    are in the range of 0.8 - 1.2 m.
    I believe SPACECOM had misidentified #22067. The real AUX MOT is 1992-047K
    (#24938) with a RCS of 0.8119 m and a very similiar behaviour in orbit over the
    years like his "twin" 1992-042G (#22066) the other AUX MOT  - both with MMs
    around 4.2.
     
    Harro
    
    Harro.Zimmer@t-online.de
    Berlin, Germany
    
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