A group of amateurs are tracking Tianwen 1 on X-band. https://twitter.com/df2mz/status/1287012706558578689 Using their timed positional observations a solar orbit should be able to be obtained at some point. Perhaps this software could be used. https://www.projectpluto.com/find_orb.htm Regards, Scott Tilley On 2020-07-25 4:07 p.m., Michael R Thompson via Seesat-l wrote: > Hi Denise, > > Based on the ephemerides for the departure located here: > https://www.projectpluto.com/pluto/mpecs/tianwea.htm > > From the view of Pensacola, Tianwen 1 would have indeed passed through the southern part of Aquarius shortly after the injection burn on July 23rd. > > My knowledge of satellites is orders of magnitude better than that of astronomy, but if I'm identifying the stars in the image correctly, I'd say it's a good match for shortly after 6:00 UTC. > > I'll also say r.e. speculation on the forum, the TLEs aren't being withheld due to any sort of political reasons, TLEs just aren't made to describe ephemerides for non-Earth orbiting objects. > > Thanks, > Michael > ________________________________ > From: Seesat-l <seesat-l-bounces+thomp376=purdue.edu_at_satobs.org> on behalf of Denise Moser via Seesat-l <seesat-l_at_satobs.org> > Sent: Saturday, July 25, 2020 5:42 PM > To: SeeSat-L_at_satobs.org <SeeSat-L_at_satobs.org> > Subject: Likely Tieanwen-1 fuel dump observed. > > I was wondering whether anyone here could move that from likely to > probable. > > I didn't observe it, but someone posting in my astronomy society (Kansas > City) group posted an image locally and someone in Pensacola posted it on > Cloudy Nights. > https://www.cloudynights.com/topic/719018-what-in-the-world-did-i-see-in-aquarius-tonight/?hl=%2Bfuel+%2Bdump#entry10362428 > No TLEs available, even though it has been designated 2020-49A & B & ? and > 45935 per wikipedia. > I found some radio guys and a British observatory twittering about > it--including images of simliar from the Emirates Mars Mission. Then one by > Bill Gray (on this list!) leading me to a simulation that I can't quite > run--I'll have to work on that. Still it has rekindled my interest in the > satellites! > _______________________________________________ > 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 Sat Jul 25 2020 - 20:55:57 UTC
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