Greg Roberts has observed Vortex 6 after one of its periodic longitude correction manoeuvres, which occur at approximately 200 day intervals. Here are approximate elements: Vortex 6 31670 X 39920 km 1 19976U 89035A 11169.16902806 .00000000 00000-0 00000-0 0 00 2 19976 6.6902 14.2127 0978122 233.4322 117.0711 1.00244300 04 Arc 20110618.73-0618.73 WRMS resid 0.003 totl 0.003 xtrk The mean motion is an estimate, based on the quadratic relationship between longitude and mean motion over the past couple of years. It was near 37.81 E, drifting west at about 0.106 deg/d. Ted Molczan _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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