Scott Tilley and I contributed observations used to update the following element sets. NOSS 3-6 (A) 1010 X 1202 km 1 38758U 12048A 12272.34409041 .00000000 00000-0 00000-0 0 08 2 38758 63.4434 5.0416 0128473 179.6454 180.4684 13.40585424 01 Arc 20120927.39-0928.36 WRMS resid 0.028 totl 0.013 xtrk NOSS 3-6 (P) 1010 X 1201 km 1 38773U 12048P 12272.34356932 .00000000 00000-0 00000-0 0 05 2 38773 63.4359 4.8556 0127740 179.1293 180.9978 13.40641254 03 Arc 20120927.39-0928.36 WRMS resid 0.025 totl 0.009 xtrk Several days ago, the leading object, 12048P, manoeuvred to reduce its RAAN by about 0.2 deg. The eventual leading object of all five earlier NOSS 3 pairs also was offset -0.2 deg in RAAN relative the trailing object. This raises doubt about my expectation that 12048P will eventually become the trailer. As of the above epoch, its lead over object A had grown to about 45 s, and continued to gradually increase. Eventually one or both will manoeuvre to create a fixed temporal separation of about 8 s. If 12048P still leads at that time, we may wish to swap IDs between the pair, in accordance with our (inconsistently followed) convention to assign A to the leader. Ted Molczan _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-l
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