OIG have the published the following decay notices for the Centaur rocket since my update yesterday: Object Notice issued Predicted decay UTC UTC #22928 = Telstar 401 Centaur r Dec 16 19:44 Dec 17 08:07 +-12h Dec 17 01:38 Dec 17 08:02 +-12h Dec 17 05:53 Dec 17 07:50 +-12h Dec 17 08:36 Dec 17 07:50 +-12h No further elsets were issued meantime, so perhaps the small change in the predicted decay time, with no improvement in the width of the decay window, may be due to the use of updated atmospheric density information derived from other tracking data. The final OIG analysis of decay at 07:50 UTC +-12h is only a few minutes later than my final one for 07:28 UTC +- 6h, reported yesterday. As Harro says, it might have dropped several hours earlier. -------------------------------------- The following OIG decay notices have yet to be superseded: Object Notice issued Predicted decay UTC UTC #25120 = Orbcomm 9 Pegasus r Dec 16 10:38 Dec 29 11:40 +-8d #25499 = C 2350 aux motor Dec 16 17:30 Dec 18 16:28 +-1d The latest elsets for these are: Orbc9 Pegasus r 1.3 1.0 0.0 7.0 d 332 x 224 km 1 25120U 97084J 98351.41194369 .00632318 00000-0 87297-3 0 3893 2 25120 44.9534 327.7245 0080638 104.1713 256.8746 15.98772952 55422 C 2350 Prot deb (aux motor) 4616 x 105 km 1 25499U 98025E 98351.28298727 .56425918 19186-4 29959-2 0 1171 2 25499 47.2009 212.1832 2581346 78.6249 43.0313 10.62818962 5762 I still predict the decay of the Orbcomm 9 Pegasus rocket for December 28 +-3 days. I now predict the re-entry of the auxiliary motor from the Cosmos 2350 launch at December 19.2 +-0.5 day. Re-entry is most likely soon after perigee which will occur just before northern apex, its most northerly point at 47 deg N. Given that the above elset for this is already 14 hours old, predicted elsets are probably too uncertain to quote here. Alan -- Alan Pickup | COSPAR 2707: 55d53m48.7s N 3d11m51.2s W 156m asl Edinburgh | Home: alan@wingar.demon.co.uk +44 (0)131 477 9144 Scotland | SatEvo page: http://www.wingar.demon.co.uk/satevo/