Hi All I caught a suspect emerging from eclipse at the time and on the track that pretty much matched the elsets offered by Ted below. 70031 01 044A 8048 G 20110912073326154 15 25 0737820+485862 37 E 70031 01 044A 8048 G 20110912073350445 15 25 0809985+494009 37 S+070 10 70031 01 044A 8048 G 20110912073403025 15 25 0824386+494452 37 S 70031 01 044A 8048 G 20110912073411566 15 25 0834388+494389 37 S 70031 01 044A 8048 G 20110912073437159 15 25 0902521+491539 37 S 70031 01 044A 8048 G 20110912073441263 15 25 0906357+490892 37 S Fullish moon was very bright, but the sky was very clear and clean so obs conditions not that bad for the video system. In binos it was a bit of a struggle... Video here: http://dl.dropbox.com/u/15916951/SATOBS/USA161_Sept12.wmv Someone asked why I observe satellites... It's the beauty of watching a man's reason predict something correctly based on a methodical observance to the Method and being a small part of it! Congrats Ted, steely eyed missile man! Regards, Scott Tilley ROBERTS CREEK 1: 8049 ST 49.4348 -123.6685 40. Scott Tilley ROBERTS CREEK 2: 8048 ST 49.4175 -123.6420 1. Scott Tilley On 9/11/2011 11:54 AM, Ted Molczan wrote: > Good afternoon everyone, > > The following orbit reasonably fits all of the visual observations reported to-date, except for Björn's of Aug 31. List > of obs fit appended. > > USA 161 228 X 820 km > 1 70030U 11250.93802561 .00023392 00000-0 10290-3 0 00 > 2 70030 97.7689 4.5330 0429053 198.6288 159.8973 15.13040690 09 > Arc 20110831.01-0907.95 WRMS resid 0.200 totl 0.155 xtrk > > Narrowing the arc to Sep 01-06, to include what probably are the most precise points, yields: > > USA 161 276 X 772 km > 1 70031U 11249.28471851 .00024590 00000-0 25716-3 0 01 > 2 70031 97.7273 2.6497 0358946 218.5854 138.9226 15.12970956 00 > Arc 201109011-0906.3 WRMS resid 0.048 totl 0.025 xtrk > > This solution remains in close agreement with Pierre's obs of Aug 31 (time and track) and Björn's (time). > > These solutions nicely eliminate the discrepancy in plane that I described last night; in fact, that is what led me to > them. I wondered what mean motion would have been required on Aug 24 (the date of the first (only?) manoeuvre, to > account for the more easterly plane of the recently observed object, which turned out to be ~15.15 rev/d. > > I recommend using the 70031 elset tonight, allowing at least 1 min time, 1 deg track. > > Best wishes, > Ted > > > 0104401 2563 110831 00172697 01 12134368 +830018 60 4 +15+25 I > 26934 01 044A 4353 G 20110901235502300 17 75 0414547+795930 56 S+020 10 > 26934 01 044A 4353 G 20110901235512350 17 75 0538144+813250 56 S+020 10 > 26934 01 044A 4353 G 20110901235522300 17 75 0717180+815600 56 S+020 10 > 26934 01 044A 4353 G 20110901235532350 17 75 0838446+804580 56 S+020 10 > 0104401 2563 110901 23554060 01 12081670 +723840 20 4 +35+45 I > 0104401 2563 110901 23560526 01 12092670 +694320 50 4 +55 S > 0104401 2563 110901 23563491 01 12101465 +652280 15 4 +65 I > 0104401 2420 20110903 233354.09 050330+501454 5.9 5.9 0 S > 0104401 2420 20110903 233616.41 091048+525431 6.9 6.9 0 S > 70020 01 044A 8048 G 20110906070754487 17 25 0647251+444161 37 S > 99161 99 161ZZ 8048 G 20110906070800493 15 25 0653805+445915 37 S > 99161 99 161ZZ 8048 G 20110906070802762 15 25 0655929+450639 37 S > 70020 01 044A 8048 G 20110906070802762 17 25 0655938+450535 37 S > 99161 99 161ZZ 8048 G 20110906070806098 15 25 0659029+451504 37 S > 99161 99 161ZZ 8048 G 20110906070809735 15 25 0702565+452680 37 S > 70020 01 044A 8048 G 20110906070814006 17 25 0707540+453246 37 S > 70020 01 044A 8048 G 20110906070818744 17 25 0712382+454449 37 S > 70020 01 044A 8048 G 20110906070821880 17 25 0715289+454972 18 S > 70001 01 044A 5919 G 20110907224828350 27 25 0209430+721285 19 S > 70001 01 044A 5919 G 20110907224853510 27 25 0431692+824959 28 S > > _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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