Sentinel-3B is a European Earth observation satellite dedicated to oceanography which launched on 25 April 2018. It was built as a part of the Copernicus Programme, and is the second (after Sentinel-3A, launched 16 February 2016) of four planned Sentinel-3 satellites.
Launch Sentinel-3B was successfully launched on 25 April 2018 at 17:57 UTC from the Plesetsk Cosmodrome aboard a Rokot launch vehicle.
See also Sentinel-3#Instruments
References
External links
Sentinel-3 program website by ESA Sentinel-3 website by the Copernicus Programme Real-time orbital tracking - uphere.space