If someone observes tumbling Iridiums, I think these days flashes from the IRIDIUM 914 can be predicted by using my program with this model: ORIENTATION TYPE #2: Rotating Rotation Axis: DEC [deg]: 7.4 RA [deg]: 268 Surfaces: (Antenna 1) RA [deg]: -74.8 DEC [deg]: -23.4 (Antenna 2) RA [deg]: -71.1 DEC [deg]: -21.1 (Antenna 3) RA [deg]: -85.3 DEC [deg]: -34.2 The model has been obtained by using the following list of observed flashes (brighter than Mag 0): (UTC) M#03 - 11/08/2009 20h07'30" M#01 - 15/08/2009 19h23'12" M#02 - 15/08/2009 19h23'44" M#04 - 15/08/2009 21h08'53" M#05 - 15/08/2009 19h23'37" M#06 - 15/08/2009 19h21'52" M#07 - 15/08/2009 19h22'46" M#08 - 15/08/2009 19h24'10" M#09 - 15/08/2009 19h23'18" M#10 - 11/08/2009 20h07'57" M#11 - 15/08/2009 19h25'29" M#12 - 11/08/2009 20h07'23" M#13 - 12/08/2009 19h31'26" M#14 - 12/08/2009 19h31'55" M#15 - 12/08/2009 19h32'27" M#16 - 12/08/2009 19h32'56" M#17 - 15/08/2009 19h25'06" The rotation period is of about 26 s. A screenshot with the flashes generated by the Antenna 1 can be found here: http://digilander.libero.it/SATrack/Iridium914_H15.jpg Best Regards, Simone http://digilander.libero.it/SATrack/ ------------------------------------------------------------------------- Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive: http://www.satobs.org/seesat/seesatindex.html
This archive was generated by hypermail 2b29 : Sat Aug 15 2009 - 23:10:42 UTC
