Re: Help with Unid

From: Mark Hanning-Lee (markhl@prodigy.net)
Date: Mon May 02 2005 - 00:18:50 EDT

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    Thanks to Bjorn and Tony for their help!
    
    In fact, I did have a current elset but the sat was in
    early twilight. When I changed the sun elevation limit
    from -7.5 to -6 degrees, I was able to predict the sat
    pass correctly.
    
    Something similar happened tonight: 03598 ATLAS
    CENTAUR R/B made a pass in early twilight, and was
    near mag 2.5 (predicted mag 3.7). I had to tweak the
    sun elevation limit to capture the whole of the pass.
    
    In the future I will try -6 instead of -7.5 degrees.
    
    Mark
    
    --- Mark Hanning-Lee <markhl@prodigy.net> wrote:
    > Hope you are all keeping well!
    > 
    > Saw a bright UNID tonight 4-29 in evening twilight.
    > It
    > was heading SW to NE. At 20:15:00 local time =
    > 4-30-05
    > 3:15:00 UTC, it passed 5 deg E of eta UMa (tail of
    > the
    > Big Dipper) heading down into the NE.
    > 
    > Magnitude 1.5.
    > 
    > It was moving about 1.8 times faster than Cosmos
    > 1220,
    > which made a good bright pass heading to the N.
    > 
    > I could not identify it with the catalog.txt file
    > from
    > Space-Track, even lowering limiting magnitude to 9.
    > Suggestions welcome!
    > 
    > Mark
    > 
    > Tustin, lat 33.729 long -117.822
    > 
    > 
    
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