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CSO-2

Soyuz STA/Fregat

Arianespace

Launch Status
Success

Mission


CSO-2

  • Type: Government/Top Secret
  • Orbit: Sun-Synchronous Orbit

The CSO-2 (Composante Spatiale Optique-2) satellite is the second of three new-generation high-resolution optical imaging satellites for the French military, replacing the Helios 2 spy satellite series.

Location


Soyuz Launch Complex

Kourou, French Guiana

Soyuz Launch Complex has witnessed the launch of 26 rockets, including 26 orbital launch attempts, while Kourou, French Guiana, has been the site for 320 rocket launches.

Soyuz Launch Complex

Rocket


Progress Rocket Space Center Soyuz STA Fregat

The 2.1a version includes conversion from analog to digital flight control system and uprated engines on the booster and the first stage with improved injection systems. The new digital flight control and telemetry systems allow the rocket to launch from a fixed rather than angled launch platform and adjust its heading in flight. A digital control system also enables the launch of larger commercial satellites with wider and longer payload fairings such as the ST-type fairing. These fairings introduce too much aerodynamic instability for the old analog system to handle. This stage continues to use the RD-0110 engine.

The 2.1a/ST version is sometimes called Soyuz ST-A.

Soyuz STA Fregat

Agency


Arianespace

Arianespace SA is a multinational company founded in 1980 as the world’s first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles launch exclusively from French Guiana in South America.

Arianespace
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