The VS12 Fregat upperstage with Galileo 9 and 10 was seen from site 4171. The object was easily picked up at eclipse egress. The brightness then noticably decreased and was lost visually at about 10 deg elevation. The track was close to my 84001 estimate. Pictures taken with the DSLR show the brightness decrease, and then what appears to be venting: https://db.tt/jyLQ5bAX The video camera also caught the Fregat upperstage. Using a 12mm F/1.2 lens, I get these measurements: 99451 15 754A 4171 G 20150911023006684 17 25 0652872+642672 28 S 99451 15 754A 4171 G 20150911023008745 17 25 0702895+630694 28 S 99451 15 754A 4171 G 20150911023011280 17 25 0713728+612964 28 S 99451 15 754A 4171 G 20150911023013882 17 25 0723122+595253 28 S 99451 15 754A 4171 G 20150911023016363 17 25 0730835+582219 28 S 99451 15 754A 4171 G 20150911023018745 17 25 0737295+565821 28 S 99451 15 754A 4171 G 20150911023020999 17 25 0742887+554285 28 S 99451 15 754A 4171 G 20150911023025579 17 25 0752235+531942 28 S 99451 15 754A 4171 G 20150911023028444 17 25 0757114+515572 28 S 99451 15 754A 4171 G 20150911023031662 17 25 0802082+502779 28 S 99451 15 754A 4171 G 20150911023035142 17 25 0806577+485919 28 S 99451 15 754A 4171 G 20150911023037646 17 25 0809465+475921 28 S Starting with the 84001 orbit estimate, I get this approximate orbit: 1 99451U 15754A 15254.15045429 .00000000 00000-0 00000-0 0 00 2 99451 56.1728 327.1568 6345896 58.7557 62.4526 3.55304038 05 # 20150911.10-20150911.10, 12 measurements, 0.020 deg rms Regards, Cees _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Thu Sep 10 2015 - 22:30:56 UTC
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