re: unknown object trailing AMS 1 (76-091A)

From: Ed Cannon (
Date: Thu Jun 14 2007 - 14:12:08 EDT

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    Brad wrote:
    > I was watching the same pass from about 500 miles north 
    > in Tulsa. I timed AMS 1 (DMSP F1, 09415, 76-091A) from 
    > 3:22:45.15 to 3:23:48.05, recording positions and 
    > flashes (post later), but did not see a second object 
    > in my 6 degree field (12 x 60 binocs). 
    I was using my 8x42.  I had no doubt there was a real 
    object there, so Brad's non-confirmation just one minute 
    earlier sets me back.  My 8x42 is fully multicoated and 
    does not have any glare or ghosting problems that I've 
    ever noticed.  (My 12x60 definitely does.)  At least once 
    AMS 1 flashed very brightly while the object behind it 
    stayed steady at the same faint magnitude (maybe +6.0 or 
    +6.5, given the observing location and sky conditions).  
    I don't have data with me now but can send my actual 
    star-passage click times later if there would be any 
    point to it.  This all happened near the zenith, not the 
    most comfortable position for observing.  I'm not sure 
    what to think.  Since Brad did not see any other object, 
    I'm expecting that it will be a one-observer, one-time 
    I forgot to mention that it appeared to me to be roughly
    1/2 to 3/4 degree behind AMS 1.  I don't know if the 
    1.1-second separation timings match that or not.
    Ed Cannon - Austin, Texas, USA
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