Télécom 1A [CNES]
The first Telecom spacecraft, Telecom 1A, was launched by an Ariane booster on 4 August 1984. Operated by France Telecom under government sponsorship, Telecom satellites service both civilian and military users through twelve active and five reserve transponders operating at 6/4 GHz (four transponders), 14/12 GHz (six transponders), and 8/7 GHz (two X-band transponders). The last units provide the Syracuse (Systeme de Radio Communications Utilisant un Satellite) secure military channels for the French Ministry of Defense.
Telecom 1 satellites were designed and manufactured by Matra with the communications package supplied by Alcatel Espace. At the start of its 7-year design life, each Telecom 1 had a mass of approximately 700 kg and an initial electrical power capacity of 1.2 kW, supplied by two narrow solar arrays with a total span of 16 m. The spacecraft bus was derived from the earlier ECS program in which Matra was a subcontractor to British Aerospace. A total of three Telecom 1 satellites were launched (1984, 1985, 1988). Only Telecom 1C remained operational at the end of 1994 and was stationed at 3 degrees E after being moved from 5 degrees W in the Fall of 1992.
Nation: | France |
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Type / Application: | Communication |
Operator: | France Télécom |
Contractors: | BAe |
Equipment: | 6 (+3) Ku-band transponder, 4 (+2) C-band transponder, 2 X-band transponder |
Configuration: | ECS-Bus |
Propulsion: | Mage-2 |
Power: | 2 deployable solar arrays, batteries |
Lifetime: | 7 years |
Mass: | |
Orbit: | GEO |
Satellite | COSPAR | Date | LS | Launch Vehicle | Remarks | |
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Télécom 1A | 1984-081B | 04.08.1984 | Ko ELA-1 | Ariane-3 | with ECS 2 | |
Télécom 1B | 1985-035B | 08.05.1985 | Ko ELA-1 | Ariane-3 | with GStar 1 | |
Télécom 1C | 1988-018B | 11.03.1988 | Ko ELA-1 | Ariane-3 | with Spacenet 3R |
Further Télécom missions:
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Further Syracuse missions:
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