News & Features Apply Refine results Type Article News Categories Ocean Sentinel Tags Sentinel-6 Copernicus Date 2020 Date August SHOW ALL 1 result News 10 August 2020 An “experiment” 28 years ago proves its worth The “most successful ocean experiment of all time” began 28 years ago today, with the launch of the first joint European-US satellite designed to map ocean surface topography – TOPEX/Poseidon.