Sentinel-3A in the cleanroom

Sentinel-3 in the cleanroom at Thales Alenia Space in Cannes, France. The two Sentinel-3 satellites have been designed and built by a consortium of around 100 companies under the leadership of Thales Alenia Space, France. The mission is the result of close collaboration between ESA, the European Commission, Eumetsat, France’s CNES space agency, industry, service providers and data users.