#17590 is one of the rockets in high circular orbits near 14th resonance with the Earth's rotation. This causes the period to oscillate, and frequently pass into the negative "drag" region. But fuel leaks have also occurred, see http://www.algonet.se/~b_gimle/gif/17590.gif for 199503-199609, and http://www.algonet.se/~b_gimle/gif/17590z.gif for 1996 March-June http://www.algonet.se/~b_gimle/gif/22285.gif is another one, closer to resonance. /Björn ----- Original Message ----- From: "Mike McCants" <mmccants@io.com> To: <SeeSat-L@satobs.org> Sent: Sunday, January 29, 2006 6:41 PM Subject: Rockets with changing mean motion > Object 17590 (87-27B, Cosmos 1833 rocket) has a changing > mean motion with a small negative "drag" term over the > last week. The drag term for day 28 is -.000009. This > is an SL-16 (Zenit) rocket. > > Object 23412 (94-78B, GEO IK Rk) had a changed mean motion > between Jan. 10 and Jan. 18. The SSR says this is an SL-14 rocket. > > There is a chance that these objects are now tumbling. > > Mike McCants > > ------------------------------------------------------------------------- > Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L > archive: > http://www.satobs.org/seesat/seesatindex.html > ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
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