hello, unfortenately wheather is bad here these days and will probably be the same the next days, I only had some short opportunities to check Gorizont 14 (87- 40 A = 17969) and 23 (91- 46 A = 21533). Gorizont 23 was not seen on Dec 11 : between 19h10m and 19h30m : fainter than +11 Dec 18 : between 19h15m and 19h25m : fainter than + 9 (full moon) On Dec 25, later during the night I finally found it, so its faint period is finished or it is only bright later during the night (seen from Europe) : Dec 25-26 : one flash time at Dec 26 0h07m03.8s, period was 55.81 +- 0.01 s, magnitude during flashes about +8 Gorizont 14 seen about 30 hours before Mike, so to much time to integrate the flash period and find the time difference : Dec 26 : one flash time at Dec 26 21h25m16.5s, period was 87.105 +-0.015 s, magnitude during flashes between +4 and +5.5. Flashes were about 2-3 secondslong. As the clouds were moving in at then time I tried Raduga 27 = 21132 = 91- 14 A which I had never seen before. Just before clouds covered everything I saw three flashes around Dec 26 21h40m, period 70.1 +- 0.3, magnitude +6, so another easy geosat (even for those with binoculars). Currently, I'm putting together a web page on the BWGS pages about the seasonal variations of the flashing period of Geostationary sats. It is not yet finished but already contains some results and ideas for discussion. You can find it at (thanks Tristan) : http://users.skynet.be/satimage/bwgs/kj/gorizont.htm All comments are appreciated ! regards, Kurt Mike wrote : > I compute 1600 miles/sec at a range of 22000 miles with a flash > period of 87 seconds. > So, yes, about 2 or 3 seconds. > >to define a target observing window and some target satellites > > My target window will be 01:00 to 04:00 tonight. > > Mike McCants ----------------------------------------------------------------- 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
This archive was generated by hypermail 2b29 : Sun Dec 29 2002 - 07:12:29 EST