My avi viewer does not allow single-frame jumps, and does not show a frame count or time code, so I timed ten repeated runs as 10*2.42 seconds. Also, I do not have a good astronomical program, so I tried to find the scale of the picture, and the speed of the satellite, from the size of Jupiter, and the apparent motion of the Jovian system in the 2.42 seconds. Could someone please identify the moons (and their coordinates) in the u v w Jupiter x arrangement, so the following confusion might be straightened out: The Jovian system appears to move in position angle 141 degrees (predicted 130). Was the camera tilted to the S, or did it move slightly ? From the size of the motion, the frame width is 11.5 arc minutes. From Jupiter's size, the frame width is 6.6 arc min. Time of transit = 46% of total time (from Jovian motion) Speed, range and direction of satellite depend on values above. If the camera was tilted, satellite moved in position angle 053 (not 065 as in frame) NOAA 10 was predicted to transit Jupiter at 06:13:06, using 5.3 days old elset, but moved in position angle 253 degrees (N-S). Cosmos 1844 was 9 arc min above using 3.8 days old elset, moving 054 degrees. -- bjorn.gimle@tietotech.se (office) -- -- b_gimle@algonet.se (home) http://www.algonet.se/~b_gimle -- > > > I have measured the absolute and relative distances of the Jovian moons > using Guide 7.0: > > 2000 Nov 04 05:00 UTC > Ganymede-Europa 1.772' (arc minutes) > Ganymede-Io 5.124' >... > Cosmos 1844 (87-41A/17973) was close to Jupiter at 06:06:50 UTC and > moving with the right speed and in the right direction as seen from Alphen. > > Rainer ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
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