In connection with this running early, Ron Lee <ronlee@pcisys.net> writes >If you look at the mean motion (15.9475xxxx), it is peobably subject >to more drag forces than typical. That may be part of it. Alan Pickup >had this object on a recent decay listing (decay about 10 April). > >You may want to keep observing it. Objects close to decay move really >quick as you noticed. You are quite correct, Ron. In fact, many objects showed a significant increase in drag, and a corresponding decrease in predicted lifetime, around March 11 (since my last SatEvo decay list). I am now predicting the decay of this Iridium Delta 2 rocket for about March 30. As objects near decay, of course, they experience increasing drag and can be expected to appear early against any predictions which assume that the drag is constant (though I don't know what technique SatSpy uses). Alan -- Alan Pickup | COSPAR site 2707: 55d53m48.7s N 3d11m51.2s W 156m asl Edinburgh | Home: alan@wingar.demon.co.uk +44 (0)131 477 9144 Scotland | SatEvo satellite page: http://www.wingar.demon.co.uk/satevo/