Re: observations of unid and my guess at it's orbit

From: Mike McCants (mmccants@io.com)
Date: Wed Nov 01 2006 - 09:34:24 EST

  • Next message: Russell Eberst: "2006OCT31.OBS"

    Kevin Feter posted his observations and a possible elset.
    
    His session was 27 minutes.
    
    During this time, the object did not show significant deviation
    from a nominal geosynchronous orbit.
    
    The mean declination was about 0.2 degrees north of a zero inclination
    orbit.  So an orbit with that inclination would be:
    
    Unknown 061101
    1 99999U 06805A   06305.40339574 0.00000000  00000-0  00000-0 0    06
    2 99999   0.2263 308.1612 0001000 318.2253 181.1292  1.00270000    00
    
    There is possibly some deviation from a constant declination during
    the 27 minutes.  So a slightly more inclined orbit is:
    
    Unknown 061101
    1 99999U 06805A   06305.28149759 0.00000000  00000-0  00000-0 0    06
    2 99999   0.3663 264.1612 0001000 318.2253 181.1292  1.00270000    06
    
    It is possible that the inclination could be as high as 0.46:
    
    Unknown 061101
    1 99999U 06805A   06305.25378926 0.00000000  00000-0  00000-0 0    03
    2 99999   0.4663 254.1612 0001000 318.2253 181.1292  1.00270000    06
    
    It is also possible that the mean motion differs slightly from 1.0027.
    
    Mike McCants
    
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