Gorizont 23, no Raduga 27

Björn Gimle (b_gimle@algonet.se)
Sun, 9 May 1999 11:12:01 +0200

Once again I was unable to find Raduga 27 in about 5 minutes of trying.

I observed flashes from Gorisont 23 20:52:52.1 to 23:03:48.7, but it took about 10 minutes of trying before I saw the first - similar to May 5, when I first saw it 20:33 UTC.
Does it actually get brighter about that time?

Assuming previously reported flash timings are correct, I have to assume 1710.5 periods (sic) passed between Rainers observation 21:03:41.4 and mine 21:03:48.7 a day later.
I still don't have an explanation for the half period, unless there is a phase shift between 21:03 and 22:02 ?
This would make the period 50.51581 seconds at May 8.378, and the rate of increase 0.00872 s/day
from my previous computation.


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