ROSAT attempted observation.

From: Jim Scotti (
Date: Sun Oct 23 2011 - 01:42:50 UTC

  • Next message: Derek C Breit: "RE: ROSAT attempted observation."

    We had a ROSAT pass only about 10-15 minutes after sunset here in southern 
    Arizona tonight.  I tried to observe it from Kitt Peak where it should have 
    passed at close to 60 degrees above the horizon.  The sky was very bright 
    with twilight, but I was hoping it might flare or maybe even be a contrail 
    with a ground track less than maybe 100km away.  I watched from more than 5 
    minutes before the predicted pass until more than 5 minutes after but did not 
    see anything.  I'm guessing the sky was too bright, though we were within the 
    decay window given the latest predictions....  I watched from UT 00:50-01:08 
    and the middle of the pass should have been 00:59 or so.
    It is difficult to say what is impossible, for the dream of yesterday is
    the hope of today and the reality of tomorrow. - Dr. Robert H. Goddard
    Jim Scotti
    Lunar & Planetary Laboratory
    University of Arizona
    Tucson, AZ 85721 USA       
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