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REM missions
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REM instruments were operational aboard the UK small satellite
STRV-1b
and the Russian space station
Mir
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Orbits of Russian space station Mir and UK satellite STRV-1b
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| Satellite |
STRV-1b |
Mir |
| Orbit |
GTO |
LEO |
| Apogee [km] |
36000 |
400 |
| Perigee [km] |
250 |
400 |
| Inclination [degrees] |
7 |
52 |
| Period [hours] |
10.5 |
1.5 |
| REM operation |
Jun.1994 - Sep. 1998 |
Nov.1994 - Nov. 1996 |
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The upper panel of the figure below shows the coverage of the two REM orbits
in the B-L plane. The single hatched area is covered by Mir and the
cross-hatched area by STRV-1b. The lines running from the upper left to the
lower right indicate the location of the mirror points for particles with a
particular equatorial pitch angle. Particles with pitch angles larger than
the labeled values can not reach regions above the lines. So for example at
L=5, only outer belt particles with equatorial pitch angles smaller than
approximately 5 degrees can reach Mir - only a small fraction of the outer
belt population.
The lower two panels show observed count rate L-profiles for several orbits.
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Coverage of REM aboard Mir and STRV-1b in B-L-plane.
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Reference: ESA Symposium, SP-392, 87, 1996
(REM_ESA96a.pdf, 0.2 MB)
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