Cees was kind enough to provide me with the image set that produced his rendering of the trajectory. I did some modelling of possible orbits to produce the observed sky track at the observation time. Assuming perigee is similar to that of Cosmos 2555, the rocket stage seems to have changed its orbit to about 279 x 855 km before the de-orbit engine firing that produced the gas cloud observed from Europe. Re-entry near 39° north, 173° west followed at about 23:30 UTC. Robert Christy > On 30 Apr 2022, at 15:50, C. Bassa via Seesat-l <seesat-l_at_satobs.org> wrote: > > Hi Nick, > > Thanks for sharing this video! > > Jonathan McDowell mentioned on twitter that the Angara AM launch > performed a de-orbit burn that may have been visible from Europe. See > his tweet at https://twitter.com/planet4589/status/1520284820450025472 > > The time and direction of motion that you mention seem to match this trajectory. > > Regards, > Cees > >> On Sat, Apr 30, 2022 at 5:34 PM Nick James via Seesat-l >> <seesat-l_at_satobs.org> wrote: >> >> Hi all, >> >> There have been quite a few reports from the UK of this event last >> night, some from as far north as 58N. My video is here taken just NE of >> London: >> >> https://nickdjames.com/meteor/2022/20220429_230630.mp4 >> >> Was this associated with the Space-X Falcon 9 launch? It is moving from >> S to N so I would have thought that was not consistent with the 53 deg >> orbit. It is a bit of a coincidence though and I don't know what else it >> could be. >> >> On my all sky camera this first appears as a bright point and then >> expands out to a diffuse disk. >> >> Nick James. >> _______________________________________________ >> Seesat-l mailing list >> http://mailman.satobs.org/mailman/listinfo/seesat-l > _______________________________________________ > 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 Thu May 05 2022 - 03:27:24 UTC
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