Russell Eberst, Greg Roberts and Peter Wakelin, contributed observations used to determine one or more of the following element sets: Russell recovered 84012A on Dec 19 UTC, which he initially reported as an unknown, running more than 20 min late relative the epoch Nov 08 elements. He made the confirming observations on Dec 21 UTC. He reports that coincident with the significantly late arrival, the object no longer is steady in brightness, and has a ~1 s period of variation, which indicates that it has undergone a small explosive release of some sort. The object is the Multiple Satellite Dispenser of the NOSS 1-6 triad, so it has a propulsion system, which could have experienced a rupture. Below are approximate elements of the new orbit, which has increased about 2 km in mean altitude. NOSS 1-6 MSD 538 X 1671 km 1 14690U 84012A 09355.21860019 .00000201 00000-0 62501-4 0 08 2 14690 63.3682 109.3655 0757000 22.4913 340.7515 13.41054254 03 Arc 20091219.3-1221.23 WRMS resid 0.005 totl 0.004 xtrk PAN 35754 X 35822 km 1 35815U 09047A 09353.17204285 .00000000 00000-0 00000-0 0 04 2 35815 0.0175 242.4789 0008118 285.5883 14.8519 1.00270000 08 Arc 20091220.81-1220.84 WRMS resid 0.010 totl 0.010 xtrk STSS Demo r 175 X 1025 km 1 35939U 09052C 09355.25875638 .00350315 00000-0 37400-3 0 08 2 35939 59.6653 143.3915 0609480 308.6371 46.1610 14.89125399 05 Arc 20091219.25-1221.27 WRMS resid 0.019 totl 0.019 xtrk 08628A 2531 X 37821 km 1 90081U 08628A 09354.31450815 .00000000 00000-0 00000-0 0 03 2 90081 62.6154 154.1063 6645011 277.0498 17.2174 2.00629006 01 Arc 20091214.79-1220.74 WRMS resid 0.007 totl 0.005 xtrk 09526A 1277 X 39078 km 1 90083U 09526A 09354.64092090 .00000000 00000-0 00000-0 0 06 2 90083 64.1059 295.7897 7117251 277.9003 13.5192 2.00607435 04 Arc 20091203.76-1220.77 WRMS resid 0.012 totl 0.010 xtrk Ted Molczan ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Mon Dec 21 2009 - 17:03:48 UTC