RE: X-37B OTV 2-1 search elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Sun May 20 2012 - 20:20:29 UTC

  • Next message: Ted Molczan: "RE: X-37B (OTV 2-1, USA 226) seen (observation)"

    Since the object was a no-show last night for Kevin Fetter and myself, I suspect it has manoeuvred again, probably to a
    still lower altitude.
    
    I offer the following *rough guesses* to help bracket searches:
    
    1 70001U          12139.11909722  .00000000  00000-0  00000-0 0    08
    2 70001  42.7980 120.8143 0010000 175.8153 353.2080 16.12500000    06
    
    1 70002U          12140.24652778  .00000000  00000-0  00000-0 0    01
    2 70002  42.7980 113.7272 0010000 183.9771 353.6929 16.12500000    03
    
    The 70001 orbit assumes circularization at the first perigee after the last observation, early on May 18 UTC. This
    defines the earliest likely time of arrival.
    
    The 70002 orbit assumes circularization occurred on May 19 near 06:00 UTC. It may define the approximate latest time of
    arrival.
    
    If logistics permit, it probably would be worth checking the last known orbits, in case Kevin and I missed it for some
    reason other than a manoeuvre.
    
    Ted Molczan
    
    
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