European maritim telecommunication program designed from the Eutelsat
platform. Operated by ESA.
Satellites used by Inmarsat
History of ECS satellites:
Name Launch date Operator Dry mass Apogee motor type
1 Marecs 1 1981 Dec 20 ESA 400? TE-M-700-5
2 Marecs B 1982 Sep 9 ESA 400? TE-M-700-9 (Launch failed)
3 Marecs 2 1984 Nov 10 ESA 400? Mage 2