USA 215 (was NROL-41

From: Bob Christy (bob@zarya.info)
Date: Wed Sep 22 2010 - 21:24:35 UTC

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    20:53:00 UTC this evening +/-10s was the time of closest approach as determined from the Doppler shift on the radio signal. It was 87s ahead of prediction from Ted's element set:
    1 77007U          10265.02987126  .00000000  00000-0  00000-0 0    03
    2 77007 123.0000  98.5010 0010000   1.1879 358.9108 13.48102018    01
    
    This fits with the approx 7s per rev drift that I noted in the early hours of this morning. The orbital period is 7-8 seconds less than the element set implies.
    
    Bob Christy
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