Yuri 3A flash timing

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Hi All,

Did some more flash timing on Yuri 3A (BS-3A) last night under
a full moon.  Flashes weren't as bright as 4 nights ago, perhaps
magnitude +4, and I was still only able to observe every 3rd
flash, which says to me that this satellite must be coning
in resonance with its spin rate.  I counted 12 flash periods
(which is really 36 rotations) in 3161.69 +/- 0.1 seconds, for
a bright flash period of 263.474 +/- .008 secs, and a rotation
rate of 87.825 +/- .003.  This is a little faster than 4 days
ago when it was 87.848 +/- .007.  PPAS format:


BS-3A (Yuri 3A), #20771
90- 77A 99-03-02 04:26:49.8  RM 3161.69 0.1 36 87.825 +-.003, mag +4 -> inv

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