#26060 = 99- 47 H = Yamal 101 aux motor Since 23:01 UTC on Mar 14, SpaceCom issued four identical decay warnings for this object, predicting its decay for today, Mar 15 03:07 +-11h at 47.3 N, 54.4 E. This had a mean motion of 2.8 revs/day when I included it in the SatEvo Decay List I posted here on February 26, predicting its decay for March 20. I was anticipating its rapid decrease in perigee height because of luni-solar gravitational effects. In the event, the mean motion was uncertain, but probably still below 4 revs/day, only three days ago. The final published elset is: Yamal 101 aux motor 3122 x 107 km 1 26060U 99047H 00074.39636814 .99999999 37788-4 54758-2 0 29 2 26060 47.5510 178.5207 1886360 61.6918 56.8623 12.15079213 3689 My decay analysis is based on the final four elsets over 15 hours and gives a decay at Mar 15 02:57 +-6h near 45.4 N, 25.9 E, in good agreement with SpaceCom's estimate. I put the decay just beyond perigee while moving NE-bound over Romania, with SpaceCom's point being a little further on over western Kazakhstan. My predicted elsets for the final three orbits: Yamal 101 aux motor 1383 x 88 km 1 26060U 99047H 00074.97789247 3.02553909 32282+1 33868-2 0 90024 2 26060 47.4530 176.2556 0910148 63.8413 305.2358 14.47043628 3760 Yamal 101 aux motor 1088 x 86 km 1 26060U 99047H 00075.04554870 3.95650776 68904+1 34853-2 0 90022 2 26060 47.4365 175.9287 0719242 64.1523 303.0892 14.93521166 3770 Yamal 101 aux motor 706 x 84 km 1 26060U 99047H 00075.11068193 6.43127133 23654+2 38237-2 0 90024 2 26060 47.4207 175.5884 0459447 64.4764 300.2035 15.57593155 3789 See also http://www.wingar.demon.co.uk/satevo/dkwatch/ Alan -- Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl Edinburgh | Tel: +44 (0)131 477 9144 Fax: +44 (0)870 0520750 Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/ ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www2.satellite.eu.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Wed Mar 15 2000 - 11:28:57 PST