USA-179 Manoeuvre (lack of) and USA-198

From: Bob Christy (
Date: Sat Jan 19 2008 - 01:37:51 UTC

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    An expected manoeuvre by USA-179 has not yet occurred. Controllers seem to
    be keeping its Mean Motion at a high value. Maybe this is connected with
    phasing the orbit with USA-198 (launced 2007 Dec 10). The whole of the past
    six weeks has been a departure from the normal routine by USA-179.
    It may worth referring back to the previous six months for a comparison:
    USA-198 shows no sign of being operational as yet. The payload continues to
    rotate with a period of around 160s. There are day-to-day, and possibly
    hour-hour variations. The magnitude variation resulting from the rotation
    has been seen in both visual and radio observations.
    Bob Christy
    Lincoln, UK
    53.2233 deg North
    0.6004 deg West
    Height 59m
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