On 22 March 2015 I measured the rotation period of this rocket (2007-027B , # 31702 ) at 10.54 seconds, from 36 (4-second) photos. According to the PPAS, the period was measured in summer 2007 as long as 80-90 seconds, and shortened ever since, see for example : https://www.flickr.com/groups/1983844_at_N22/discuss/72157634322261108/72157651456081766 Does somebody know the why of this persistent period shortening ? (fuel leakages ?) Regards Alain Figer 48.67 N ; 2.13 E ; 170 m a.s.l. _______________________________________________ Seesat-l mailing list http://mailman.satobs.org/mailman/listinfo/seesat-lReceived on Mon Mar 23 2015 - 12:36:01 UTC
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