On night of July 24/25 each ISS pass is sunlit for some portion of each pass as seen from my location. The sun is at least 3° below our horizon (certainly dark enough for the ISS) from 10:13 p.m until 5:13 a.m, 7 hours and how long is each orbit??? < 93 minutes You do the math. We have two windows each year in which we can see 5 consecutive passes. Larry Wood W 113.565 N 53.558 > > I've seen 4, I think the record and theoretical max is 6. > 52 N is too far north because the alignment has to occur in local > spring-summer and at 52 north the period of darkness is too short. The > optimum latitude is 35-40, longer night, still adequate elevation at > farthest north pass. > Dale ----------------------------------------------------------------- Unsubscribe from SeeSat-L by sending a message with 'unsubscribe' in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org http://www.satellite.eu.org/seesat/seesatindex.html
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