RE: Policy question

From: Ted Molczan (
Date: Fri Mar 19 2004 - 14:07:08 EST

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    Regarding USA 129's recent manoeuvre, Jeffrey Lewis asked:
    > Given the resulting ground track, is it plausible that we 
    > would have moved the KH-12?
    No. The KeyHoles only manoeuvre to maintain their orbits against the perturbing
    effects of drag and solar gravity, and to maintain the phasing of their ground
    tracks relative one another within certain limits.
    The orbits of the two primary KeyHoles are spaced in such a way as to provide
    frequent repeat coverage, without need of special manoeuvres to station-keep
    with their observation targets.
    Ted Molczan
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