X-37B OTV 1-1 post-manoeuvre elements

From: Ted Molczan (ssl3molcz@rogers.com)
Date: Mon Nov 29 2010 - 15:00:03 UTC

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    Observations by Greg Roberts late on 2010 Nov 28 UTC, and Alberto Rango, early on Nov 29 UTC, reveal
    an apparent small manoeuvre downward of about 1.2 km.
    
    Given the short arc, the following should be considered preliminary.
    
    X-37B OTV 1-1                                            284 X 287 km
    1 36514U 10015A   10333.18496034  .00024512  00000-0  54109-4 0    01
    2 36514  39.9919  75.6811 0002161  32.6011 327.4949 15.96957137    03
    Arc 20101128.8-1129.2 WRMS resid 0.045 totl 0.022 xtrk
    
    I considered the possibility that drag was responsible for the lower orbit, but an increase of about
    ten-fold would have been required, which is not supported by the solar flux and geomagnetic
    activity.
    
    The change of orbit appears to have occurred on Nov 28, around 06 h UTC.
    
    Ted Molczan
    
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