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Inmarsat-2 F1, 2, 3, 4

Inmarsat-2 (I-2) [Matra Marconi]

Launched in the early 1990s, the four second-generation satellites were built to Inmarsat specification by an international group headed by British Aerospace (now BAE Systems).

The three-axis-stabilized Inmarsat-2s were designed for a 10-year life. Inmarsat-2 F1 was launched in 1990 and is now located over the Pacific, providing lease capacity. F2, launched in 1991, is over the western Atlantic, providing leased capacity and backing up Inmarsat I-3 F4. Also orbited in 1991, F3 is stationed over the Pacific Ocean, providing lease capacity and backing up Inmarsat I-3 F3. The fourth Inmarsat-2 was launched in 1992 and is used to provide leased capacity over the Indian Ocean and backing up Inmarsat I-3 F1 and Inmarsat I-3 F3.

Nation: International
Type / Application: Communication
Operator: Inmarsat
Contractors: Matra Marconi
Equipment: 4 (+2) L-band transponders, 1 (+1) C-band transponders
Configuration: Eurostar-1000
Propulsion: R-4D-11
Power: 2 deployable solar arrays, batteries
Lifetime: 10 years
Mass: 1310 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
Inmarsat-2 F1 (Inmarsat I-2 F1) 1990-093A 30.10.1990 CC LC-17B Delta-6925
Inmarsat-2 F2 (Inmarsat I-2 F2) 1991-018A 08.03.1991 CC LC-17B Delta-6925
Inmarsat-2 F3 (Inmarsat I-2 F3) 1991-084B 16.12.1991 Ko ELA-2 Ariane-44L H10 with Telecom 2A
Inmarsat-2 F4 (Inmarsat I-2 F4) 1992-021B 15.04.1992 Ko ELA-2 Ariane-44L H10+ with Telecom 2B

References:

  • Inmarsat Website
Further Inmarsat missions: