Re: TDF 1, or a different one?

From: Björn Gimle (
Date: Tue Sep 03 2002 - 15:56:54 EDT

  • Next message: Björn Gimle: "Re: TDF 1 is flashing ??"

    I almost hope that Rob and Ed did see Cosmos 2282 !
    I found a sign error in my TDF 1 flash predictions, but my axis/angle
    computations appear correct. That same axis, now at RA 19.83 Dec 62.9 and cone
    angle 86.35, now gives a lower flash path, so the evening event is before dusk
    over all of USA.
    The morning event is too late for the eastern states, near RA 1:15 and 3:30
    (near midway if cone angle = 90 deg).
    This means for 2002-09-04 around 11:05 over Austin, TX, 11:11 for San Antonio,
    10:52 for Colorado and S.California
    My apologies for earlier false hints, but I must repeat that the uncertainty is
    at least +- 1 h.
    Also note that times are for the first morning event - if the cone is closer to
    90 degrees as I suspect, the (combined) event is probably an hour later.
    ----- Original Message -----
    > Thanks ! Using Rob Matson's axis for Feb-Mar 2000 and his observation below my
    > program finds a precession of 2.03 h/y. Rob also said: ...    Flashes are also
    > visible on the half-period, indicating reflections from the back side of one
    > of the panels. ...
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