RE: Unidentified Geosat

From: Ted Molczan (molczan@home.com)
Date: Sat Mar 17 2001 - 09:10:02 PST

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    The apparent relationship between Rick Baldridge's unknown and Milstar 4 looks
    interesting.
    
    Adjusting the ILAM information (Initial Launch Alert Message) for Milstar 4's
    actual time of launch, it should have separated from the Centaur on 2001 Feb 28
    at 03:54:49 UTC, and entered this orbit:
    
    1 70003U          01059.16306713  .00000000  00000-0  00000-0 0    05
    2 70003   4.5010 345.6470 0000480 326.3210 165.2540  1.00342419    07
    
    Mike McCants' latest elset for Rick's unknown is:
    
    > Unknown 010313
    > 1 90009U 01572A   01074.70789176 0.00000000  00000-0 +00000+0 0    02
    > 2 90009   2.9000 327.5003 0001000   0.0523 359.9743  1.00263524    05
    
    As a crude check for a possible relationship, I ran an ephemeris for my
    location (43.68764 N, 79.39243 W, 230 m)for the time of spacecraft separation,
    and found pretty close agreement. Their predicted azimuths would have been
    nearly identical, but the elevation of the unknown would have been roughly 2
    deg lower than that of Milstar 4.
    
    Ted Molczan
    
    
    
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