Hi Great work Ted :) Now we can track it! Very very thanks! Adam wt., 9 mar 2021 o 18:48 Ted Molczan via Seesat-l <seesat-l_at_satobs.org> napisał(a): > > With Adam Hurcewicz's help, I have derived approximate elements of what appears to be the Falcon 9 rocket body of the 2021-017 launch. > > 281 X 282 km > 1 92004U 21565A 21065.16791667 .01845038 00000-0 40100-2 0 00 > 2 92004 52.9988 175.9979 0001000 0.0000 71.9086 15.97575395 03 > > Methodology > > I reduced two positions, separated in time by 1.1 minutes, from a video shot by a different observer on 6 March 2021 5:03 local time (4:03 UTC): > > https://youtu.be/rKyTjz-E0FQ > > Adam contacted the observer and obtained accurate location co-ordinates. I failed to request permission to publish the name of the observer or the co-ordinates. > > I identified a known satellite in the video, which enabled me to estimate that it begins at 04:00:12 UTC. > > The above elements are a circular orbit approximation. The decay term is a trial and error fit to approximate the time and track on the video Adam shot this morning: > > https://youtu.be/JdbWWKalPwg > > Ted Molczan > > > > _______________________________________________ > Seesat-l mailing list > http://mailman.satobs.org/mailman/listinfo/seesat-l _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Tue Mar 09 2021 - 12:13:08 UTC
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