Greg Roberts has reported the first observational data on an object from the SBSS 1 launch, which I believe to be the rocket: http://satobs.org/seesat/Sep-2010/0348.html The rapid variation in brightness that Greg observed is consistent with the behaviour of many previous Orion 38 stages. The following preliminary elements are fit to Greg's obs, plus a synthetic obs at the planned time and approximate place of orbital insertion: SBSS 1 r 527 X 538 km 1 37169U 10048B 10272.74846015 .00000000 00000-0 00000-0 0 09 2 37169 98.0000 134.4115 0008000 328.5282 31.5466 15.10164263 06 Arc 20100926.2-0929.79 WRMS resid 0.154 totl 0.147 xtrk Orion 38 stages typically have a standard visual magnitude near 7.5 (1000 km, 90 deg phase angle). Ted Molczan _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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