RE: Richard's mystery GEO satellite near Cone Nebula

From: Matson, Robert (
Date: Thu Mar 17 2005 - 12:25:19 EST

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    > here's the latitude/longitude of my observing location
    > Lat:  37.718537  37:43:6.733N
    > Lon:  -122.066474  122:03:59.306W
    Richard, these coordinates are significantly different from what's
    posted on your website image -- more than 17 miles away!  When using
    the correct coordinates, Ekran 8 is the best match, though it is
    still not a great match.  Ekran 8 would have been early by 6 minutes
    and 20 seconds -- in other words, if the track was perfect, your
    exposure would have ended at 3:56:20 rather than 3:50.  This is a
    pretty big error for an ephemeris whose epoch is only a little over
    a day old.
    By the way, this is a terrific image.  I'm having no trouble picking
    out 14th magnitude stars!  --Rob
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