Greg Williams wrote: > A friend of mine photographed the eclipse and was about to discard this video when he noticed a satellite passing from what appears to be North to South. > https://youtu.be/wctJ2SmOA0U > > Here's what he told me: > I was going to throw this footage out until I caught what I believe to be a Satellite flying by at about 1:56. It comes into frame from the top left center of the > screen and flies diagonally down to the bottom Right center. Also there are some neat wispy clouds that fly by towards the end as well. > > My Coords are Lat: 35.78964 Lon; -83.9439 > C1 was 13:04:58 C2 14:34:01 C3 14:35:18 > > All times Eastern > Camera info:Canon EOS 5D Mark II > F11.0 400mm1/60 ISO 400 > > If anyone can ID the satellite please let me know. The approximate time of appulse of the sun was 18:36:54 UTC. The centre of the solar disk was near RA 10 03.18, DEC +11.9427 (2000.0) The appulse distance was approximately 1.5 deg from the centre of the solar disk. The object took about 12.7 s to traverse an angular distance approximately 5.4 times the diameter of the solar disk, or 2.7 deg, which yields an angular velocity of about 0.21 deg/s. A brute force search using IDSat against a recent USSTRATCOM full catalogue TLE file, augmented by Mike McCants' current classfd.tle file, yielded no matches. An object in a circular orbit, observed at the approximate position of the one in question, moving at 0.21 deg/s, would have been at an altitude of roughly 1800 km. Objects at that range seldom are visible to the unaided eye in a dark sky, let alone in the bright sky that existed at the time of the video. Therefore, the object almost certainly was not a satellite. Ted Molczan _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Thu Aug 24 2017 - 07:55:28 UTC
This archive was generated by hypermail 2.3.0 : Thu Aug 24 2017 - 12:55:28 UTC