I tried to see Gorisont 23 (and Raduga 27) earlier (22:10 local DST) with a blue sky with only Mars and 1st magnitude stars. It took me 20 minutes to find Gorisont, and about 5 minutes spent on Raduga gave no result. I timed the third flash at 20:33:03.5 Since the period appears well defined by yesterday's observations and Kurt's posting, I expected that the accuracy would produce a near integer multiple of 50.487+0.005 s Instead, I get (from 22:19:44.9 79998.6 seconds) 1584 periods of 50.504166 seconds. With Kurt's 0.01/day, this would make the May 4 period 50.499, just above Kurt's upper limit, and well above mine. -- b_gimle@algonet.se http://www.algonet.se/~b_gimle -- -- COSPAR 5918, 59.298 N, 18.102 E, 55 m -- -- SeeSat-L / Visual Satellite Observer Home Page found at -- -- http://www.satellite.eu.org/satintro.html --