Sentinel-3The Copernicus Sentinel-3A ocean-monitoring satellite was launched successfully on February 16 2016 from Plesetsk, Russia. Sentinel-3 is the third in a series of six Sentinel missions developed to provide Earth observation data for the EU Copernicus programme. The Sentinel-3A satellite carries a suite of instruments to monitor different aspects of the oceans such as the temperature and colour of surface waters, sea surface height and sea ice thickness. It will also monitor land temperature and colour, and aerosols. The Sentinel-3 mission is based on a constellation of two identical satellites operating in a sun-synchronous, polar orbit at an average altitude of 815 km. Sentinel-3B will be launched in 2017. For more information click here