Update about : Cosmos 1360 r (Zenit-2) = 25407 = 98-45 B. First of all thanks to all people who made accurate timings of this interesting object and reported them. This is appreciated very much! Thanks to these worldwide observations we have a timing on every day. Hope we can go on for some time ! According to the latest observations, it seems that the minimum of the period was reached around August 1, and that the period is going up slowly again. (see below) So the residual fuel venting out - which was very probably causing this acceleration of the rocket - has stopped and the rotation of the rocket will slow down by the interaction with the magnetic field of the earth from now on. Overview date period > July 29.96 4.543 +-0.04 sec (3,4,5 and 20 periods, Pierre Neirinck) July 30.16 3.78 +-0.1 sec (Walter Nissen) July 30.17 3.5 (Eric Vondra) > July 31.87 2.791 +-0.01 (4,6,10,44 Pierre Neirinck) > July 31.94 2.771 +-0.01 (4,6,8,10,56 Pierre Neirinck) Aug 1.8 2.75 (Bjorn Gimle) Aug 1.9 2.79 (Russell Eberst) Aug 2.92 2.755 +-0.015 (Pierre Neirinck) Aug 3.9 2.782 (Alan Pickup) Aug 4.90 2.801 +-0.003 (Kurt Jonckheere) SL-16 R/B (elements coming from OIG) 1 25407U 98045B 98216.23775828 -.00000048 00000-0 00000+0 0 74 2 25407 71.0117 116.5852 0009751 265.8836 94.1170 14.14845563 974 Greetings, Kurt Jonckheere