From the city, poor binoculars, few stars visible, appulses only. USA 129 made a long-duration flare in the ESE 24680 96 072A 5918 G 20050901191139400 17 25 2125605+234471 29 I+010 10 24680 96 072A 5918 G 20050901191252980 17 25 2148595+491493 19 I-010 10 24680 96 072A 5918 G 20050901191401680 17 25 2317261+750139 29 I 24680 96 072A 5918 G 20050901191409450 17 25 2343714+772682 19 I 27699 03 009B 5918 G 20050901193256770 17 25 0106330+362073 29 S 27699 03 009B 5918 G 20050901193311470 17 25 0137029+412141 28 S 27699 03 009B 5918 G 20050901193349470 17 25 0316535+505372 28 S What these numbers mean: http://www.algonet.se/~b_gimle/IODprograms.htm Also inaccurate flash periods : 19:41:17.09 28651U 05017C 19:41:30.79 13.70 19:41:44.71 13.92 19:41:59.33 14.62 19:42:17.54 18.21 19:42:31.57 14.03 19:46:14.59 17369U 87011A 19:46:28.16 13.57 19:46:36.87 8.71 19:46:52.50 15.63 19:47:01.07 8.57 19:47:14.66 13.59 19:47:25.51 10.85 19:47:40.28 14.77 19:47:48.26 7.98 19:48:14.08 25.82 The first four flashes indicate a period of 14.1 +-0.2 sec, which agrees with the following two. But there is a phase shift of +4.3 sec between them. If instead there is a common period without phase shift, it would be around 15 sec, and the timing errors +-1.5 sec. Getting +-0.2 on the first four by chance seems quite unlikely. The second obs appears extremely irregular. It can be interpreted in PPAS-like form, with +-2 sec spread on individual timings: 87- 11 A 05-09-01 19:48:14.1 BJG 119.5 2.0 10 11.95 but looking graphically with SYNODIC an interpretation is a 11.15 sec period between flashes 0+2, 1+4, 3+5+6+8 and 7+10, each within +-0.2 sec on flash timings. The phase shift between the sequences is 2.1, 2.0, 3.8, consistent with a six-sided symmetry (11.15/6=1.85) of reflecting surfaces? (Graphs on request) -- COSPAR 5919, MALMA, 59.2576 N, 18.6172 E, 23 m -- -- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 44 m -- ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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