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ENVISAT
The earth observation mission
ENVISAT
(Environmental Satellite) of the European Space Agency ESA evolved from the polar platform of the Columbus program. It is so far the largest European satellite in operation and has the goal of monitoring the entire Earth System (lithosphere - hydrosphere - atmosphere - cryosphere - biosphere). ENVISAT is equipped with ten instruments, including three atmosphere sensors. ENVISAT was launched into earth orbit from Kourou with an Ariane 5 rocket on March 1, 2002. Since this time it has successful completed over 35,000 orbits. Originally designed for a mission life of five years, the ENVISAT mission was extended to 2012. The end of the mission was being declared on May 09, 2012.
Tabelle: ENVISAT Mission Parameters
Dimensions
26 m × 10 m × 5 m
Total mass
8.2 t
Payload
2.05 t
Number of instruments
10
Launcher
Ariane 5
Launch
March 1, 2002
End
May 9, 2012
Tabelle: ENVISAT Orbit Parameters
Semi-major axis
7159 km
Orbit altitude (mean)
800 km
Inclination angle
98.55°
Orbital period
100.6 min
Orbit
polar, sun-synchronous
Overflight time
10 am
Orbits per day
14.31
Revisit
35 days
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