The second Copernicus Sentinel-3 satellite, Sentinel-3B, lifted off on a rocket from the Plesetsk Cosmodrome in northern Russia on April 25, 2018, joining its twin, Sentinel-3A, in orbit. The pairing of identical satellites provides the best coverage and data delivery for Europe’s Copernicus program: the largest environmental monitoring program in the world.
The satellites carry the same instruments to measure oceans, land, ice and atmosphere. Although these data are fed primarily into the Copernicus Marine Environment Monitoring Service, all the Copernicus services benefit to produce knowledge and information products in near-real time for a wide range of applications. The Sentinel-3 mission is essential for applications for ocean and coastal monitoring, numerical weather and ocean prediction, sea-level change and sea-surface topography monitoring, ocean primary production estimation and land-cover change mapping.
Photo credit: ESA - S. Corvaja