Sentinel-3 solar arrayAccess the video

Facts and figures

Launch Sentinel-3A: launched on 16 February 2016
Sentinel-3B: to be launched in 2018
Launcher Rockot, from Plesetsk, Russia
Orbit     Polar, Sun-synchronous at altitude of 815 km
Revisit time (ocean) SLSTR ~1 day, OLCI ~2 days, SRAL has a 52 km ground track separation after 27 days – all cases using two- satellite constellation at the equator.
Life Planned for seven years (carries consumables for 12 years)
Satellite 2.2 m long, 2.2 m wide, 3.7 m high and a mass of 1150 kg (including 130 kg fuel)
Instruments

Ocean and Land Colour Instrument (OLCI) covering 21 spectral bands (400–1020 nm) with a swath width of 1270 km

Sea and Land Surface Temperature Radiometer (SLSTR) covering 9 spectral bands (550–12 000 nm), dual-view scan with swath widths of 1420 km (nadir) and 750 km (backwards)

Synthetic Aperture Radar Altimeter (SRAL) Ku-band (300 m after SAR processing) and C-band

Microwave Radiometer (MWR) dual frequency at 23.8 & 36.5 GHz

Receiving stations Scientific data: transmitted to core Sentinel ground stations
Telemetry data: transmitted to and from Kiruna Sweden
Main applications

Sea-level change & sea-surface temperature mapping, water quality management, sea-ice extent and thickness mapping and numerical ocean prediction; land-cover mapping, vegetation health monitoring; glacier monitoring; water resource monitoring; wildfire detection; numerical weather prediction. 

Mission             Developed by ESA, jointly operated by Eumetsat
Funding ESA Member States and the European Union
Prime contractors

Thales Alenia Space France for satellite, OCLI & SRAL; Selex ES Italy for SLSTR; EADS-CASA for MWR

Data access sentinels.copernicus.eu

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