Programmes d'observation de la Terre
Seul l'espace offre la perspective nécessaire pour comprendre, observer et agir face à notre monde en mutation.
24 NOV. 2005
Date de publication
2545
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The MSG missions were all taken into orbit by an Ariane 5 from Europe's Spaceport in Kourou, French Guiana. The last satellite of the series, MSG-4, was launched on 15 July 2015.
Modal média
The heavy-lift launcher places the two-tonne MSG satellites in an initial 'parking' or geostationary transfer orbit. This is a highly elliptical (or elongated) orbit intermediate between geostationary and low-Earth orbit (LEO), with an apogee of approximately 35 944 km and a perigee of just 580 km.
From this orbit, the satellites use their onboard engine to gradually circularise their orbit over a period of weeks until they reach their final geostationary orbit. This operation is overseen by ESA's European Space Operations Centre (ESOC) in Darmstadt, Germany.
Modal média
Meteorological missions
Building the future of weather forecasting from space
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