Eutelsat I F-1

EUTELSAT I F-1, also known as European Communications Satellite 1 (ECS-1) is a decommissioned communications satellite operated by the European Telecommunications Satellite Organisation (EUTELSAT). Launched in 1983, it was operated in geostationary orbit at a longitude of 13° East, before moving to several other locations later in its operational life, before it was finally decommissioned in 1996. It was the first of five satellites launched to form the first-generation Eutelsat constellation.

EUTELSAT I F-1
NamesECS-1
European Communications Satellite-1
EUTELSAT 1
Mission typeCommunications
OperatorESA / Eutelsat
COSPAR ID1983-058A
SATCAT no.14128
Websitehttps://www.eutelsat.com/en/home.html
Mission duration7 years (planned)
13 years (achieved)
Spacecraft properties
SpacecraftECS-1
Spacecraft typeECS
BusECS-Bus
ManufacturerBritish Aerospace
Launch mass1,158 kg (2,553 lb) [1]
Dry mass500 kg (1,100 lb)
Dimensions1.9 m x 1.4 m x 2.3 m
Span on orbit: 13.8 m
Power1 kW
Start of mission
Launch date16 June 1983, 11:59:03 UTC[2]
RocketAriane 1 (L06)
Launch siteCentre Spatial Guyanais, ELA-1
ContractorArianespace
Entered service12 October 1983
End of mission
DisposalGraveyard orbit
Deactivated16 December 1996
Orbital parameters
Reference systemGeocentric orbit[3]
RegimeGeostationary orbit
Longitude13° East (1983-1988)
16° East (1988-1991)
17.5° East (1991-1992)
25.5° East (1992-1993)
48° East (1993-1996)
36° East (1996) [4]
Transponders
Band12 Ku-band
Bandwidth72 MHz
Coverage areaEurope