congratulation to that success - and Happy New Year from Germany ... it is just 1 hr of 01-01-02 ;) Jörg Matson, Robert wrote: > Hi All, > > Success!!! I finally matched up the starfield, and have now > positively identified the satellite in this movie: > > >>http://leonid.arc.nasa.gov/IMAGES/leonid-satellite.mov >> > > It was indeed DFS 3 R/B (USSPACECOM #22176, 92066B), one of the > three candidates I listed earlier. There were a number of reasons > why it was hard to match up the starfield -- first, the diagonal > field of view is only about 18 degrees, so recognizing a constellation > is pretty much out. Second, these intensified CCD cameras are more > sensitive to red light then our eyes are, so the comparative brightness > of stars in the video doesn't quite match the comparative visual > magnitudes. Finally, and perhaps most importantly, my assumed > aircraft location (Okinawa) was off quite a bit, and since the > camera was pointing nearly at zenith, this caused the satellite > track to shift significantly relative to the stars. > > What's amusing is that I can now tell FISTA where they were on > 11/18/1998 at 4:43:35am UTC+9, since I simply moved the SkyMap > observer location until the satellite lined up correctly relative > to the stars! Their approximate location was latitude 23.05N, > longitude 126.27E -- a couple hundred miles southwest of Okinawa. > > The bright star in the upper left of the frame is beta Geminorum > (Mv +1.22), aka Pollux, and the camera is pointing about 10 degrees > north of the zenith. I can provide a SkyMap configuration file to > anyone interested in comparing the video with my analysis. The > track is a perfect match. > > Happy New Year to All, > > Rob > > ----------------------------------------------------------------- > Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' > in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org > http://www.satellite.eu.org/seesat/seesatindex.html > > -- ===================================================================== Dr. Jörg Kampmann - IBK-Consult for Real-Time and Embedded Systems D-31228 Peine - Tel.:+49-177-276-3140 - Fax: +49-5171-13385 http://www.ibk-consult.de ===== QNX is the better Choice for Real-Time: http://www.qnx.com ====
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