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Sentinel 3B


Designation 43437 / 18039A
Launch date 25 Apr 2018
Country of origin Remote sensing
Mission Remote sensing
Perigee/Apogee 806/826 km sun-synchronous
Inclination 98.6°
Period 101 min
Launch vehicle Rokot #33

Worth EUR 305 million
follows Sentinel 3A on the same orbit, 10 minutes behind.

sat-index articles

n2yo.com tracking

Technical data


SAR Radar Altimeter (SRAL) and Microwave Radiometer (MWR)

Used to measure the topography of ocean surfaces, with quality equal to the data provided by the altimeters on Envisat. The mission will also cover the topography of ocean surfaces near coastal zones and ice masses. These measurements will allow us to better monitor the impact of climate changes (melting ice, rise in sea level, etc.), enhance maritime safety and improve meteorological accuracy by better understanding the relationship between oceans and the atmosphere.

Ocean and Land Colour Instrument (OLCI)

Designed to monitor ocean conditions (currents, marine life etc.) and coastal zones (pollution, currents, etc.), to support more accurate predictions of changes in these conditions and better management of resources. Optical.

Sea and Land Surface Temperature Radiometer (SLSTR)

Optical instrument, to monitor the impact of climate changes on the temperature of our oceans as well as of the emerged land, and improve meteorological forecasts by fostering a better understanding of the relationship between oceans and the atmosphere.

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