CNES has signed a contract with Astrium Satellites to develop the French three-satellite military constellation called CSO (Composante Spatiale Optique). These satellites will eventually replace the current Helios 2 military observation satellites. As prime contractor for the CSO satellites programme, Astrium will provide the agile platform and avionics, and will be responsible for the integration work, testing, and delivery of the satellites to CNES. Thales Alenia Space will provide Astrium with the very-high resolution optical instrument.
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