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Telstar 401, 402, 402R

Telstar 401 [Lockheed Martin]

The Telstar 4 series was the successor to AT&T's Telstar 3 series. The spacecraft were built on Lockheed Martin's AS-7000 bus and featured 24 C-band and 16 Ku-band transponders.

Telstar 402R was later renamed Telstar 4.

Telstar 401 was rendered inoperative during a geomagnetic storm on 11 January 1997 due to an electric discharge. Telstar 402 exploded shortly after launch. Telstar 4 (ex 402R) suffered a complete power breakdown in September 2003.

Nation: USA
Type / Application: Communication
Operator: AT&T → Loral Skynet
Contractors: Lockheed Martin
Equipment: 24 C-band, 16 Ku-band transponders
Configuration: AS-7000
Propulsion: 2 × LEROS-1B
Power: 2 deployable solar arrays, batteries
Lifetime:
Mass: 3775 kg
Orbit: GEO
Satellite COSPAR Date LS Launch Vehicle Remarks
Telstar 401 1993-077A 16.12.1993 CC LC-36B Atlas-2AS
Telstar 402 1994-058A 09.09.1994 Ko ELA-2 Ariane-42L H10+
Telstar 402R → Telstar 4 (ex Telstar 403) 1995-049A 24.09.1995 Ko ELA-2 Ariane-42L H10-3
Further Telstar missions: