Sentinel-3A upper composite was transported by rail from the cleanroom in the integration facilities to the launch pad, at the Plesetsk Cosmodrome in northern Russia, on 12 February 2016,.
Once safely in orbit and fully commissioned, this new satellite will begin its mission to map Earth’s oceans and land surfaces with its powerful optical and radar systems. The Sentinel-3 mission is set to play a key role in the world’s largest environmental monitoring programme – Copernicus.