posted on Jan, 20 2010 @ 11:21 AM
Presumably due to the break between academic semesters, no new ephemeris data for 9U01FF6 has been forthcoming from the Harvard College Observatory,
Distant Artificial Satellite Observation page since the first of the year. I have enquired about this, but received no reply. Unfortunately, they are
the only known source of an updated ephemeris, and one with apogee and perigee distances. The Spring semester at Harvard begins on Jan. 25th, so
perhaps the backlog of data will be cleared, and daily updates resumed at that time. 9U01FF6 reached a higher speed at it last near pass at Earth on
Dec. 30th. It thus presumably attained a more distant apogee on Jan 14th, than previously. It is now working its way back toward Earth, and it
expected to pass nearest on Jan. 30th. It has been pointed out to me by Franz Bauer that the data points for the Oct., Nov., and Dec., 2009 close
approaches can be used to mathematically infer a exponentially decreasing perigee. This method predicts a close approach for January of 17,095 miles.
We shall see.