Satellites eclipsed Aug.11
Bjoern Gimle (b_gimle@algonet.se)
Sun, 1 Aug 1999 11:34:13 +0200
I have written a program to find all satellite positions (at fixed
intervals)
closer than a specified distance from the Sun-Moon eclipse line.
This version zero does not account for the width of the shadow cone, but
for a LEO on the sunlit part of the Earth it is just a few hundred km, so
it is still easy to find the candidates.
First trials with a 60 second interval, using recent SELECT.TLE and
VISUAL.TLE found:
01843 65106A Cosmos 100 11:21 034E 43N !?
04813 70113A Cosmos 389 10:18 000E 49N
07969 75056B Cosmos 744 r 10:23 002W 49N
11285 79020A InterCos 19 11:26 028E 38N
15076 84063E SL-12 r (aux) 12:01 045E 35N
15945 85069B Cosmos 1674 Rk 10:04 000E 46N
16609 86017A Mir Complex 10:15 003E 45N
16496 86006B Cosmos 1726 Rk 11:09 028E 42N
20466 90010B Cosmos 2058 Rk 11:07 025E 42N 53 km! 11:06:27-11:07:40
22233 92079C GPS 2-16 r2 10:55 018E 30N !?
25105 97082B Iridium 24 tum 10:03 006W 46N 10:02:53-10:03:45
25680 99019E Gstar45 Soyuz 11:13 028E 45N !? 11:14:52-11:15:20
Quality Assurance is minimal - I checked three passes with SkyMap, and it
shows
eclipse coloured tracks at the indicated times. But the presence of "!?"
indicates that I doubt some of the most Eastward positions, and the presence
of errors makes all output unreliable.
-- bjorn@tt-tech.se (office) b_gimle@algonet.se (home) --
-- 59.2615N, 18.6206E, 33m http://www.algonet.se/~b_gimle --
-- COSPAR 5918, HAMMARBY, 59.2985 N, 18.1045 E, 55 m --
-- SeeSat-L / Visual Satellite Observer Home Page found at --
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