Re: Administrative decay?

From: Mgr. CSc. Antonín Vítek (AVitek@seznam.cz)
Date: Tue Sep 30 2003 - 14:37:06 EDT

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    From: "Rod Sladen" <satellite@rod.sladen.org.uk>
    
    > UNK    Decayed: 2003/09/28
    > 1 27947U 03042J   03273.19089128  .00008481  00000-0  16870-2 0    43
    > 2 27947  98.2053 159.6146 0012772 213.5559 146.2998 14.62282048   443
    > 
    > UNK    Decayed: 2003/09/28
    > 1 27947U 03042J   03271.41180387  .00018961  00000-0  37558-2 0    34
    > 2 27947  98.2052 157.8479 0012642 218.5571 141.4689 14.62261221   181
    > 
    > One possibility is confusion with 26212U 99057DA, also in a 98
    > degree inclination orbit.  No elsets for 26212 have appeared since
    > 2003/09/28, and recent elsets showed the object near decay:
    > CZ-4 DEB
    > 1 26212U 99057DA  03271.10461514 +.25981668 +32225-5 +69881-2 0 04418
    > 2 26212 098.5841 107.5778 0011594 268.7697 091.2569 16.28080220191754
    
    This theory seems to be very unprobable. The Object 2003-042J/27947 exhibits RAAN of ascending node apprx. 158 deg, very near to the RAANs of other object from the launch 2003-042, but differs from the one of 1999-057DA by approx. 50 degrees. Such an error in orbit determination leading to the sonfusion seems to be unprobable. Also rather tremendous difference in the mean motion  makes this theory very vague.
    
    Mgr. Antonin Vitek, CSc.
    
    Office: Main Library, Academy of Sciences of the Czech Republic
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    Office e-mail: AVITEK@LIB.CAS.CZ
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