Entrée : SENTINEL-3A
URI: https://terra-vocabulary.org/ncl/FAIR-Incubator/earthscienceplatforms/c_cd3d2457
Mission Details Launch Date: Sentinel-3A - 16 February 2016 Sentinel-3B - 25 April 2018 Operational lifepsan: 7 years (With consumables for 12) Mission objectives: Measuring sea-surface topography, sea-surface height and significant wave height Measuring ocean and land-surface temperature Measuring ocean and land-surface colour Monitoring sea and land ice topography Sea-water quality and pollution monitoring Inland water monitoring, including rivers and lakes Aid ocean forecasts with acquired data Climate monitoring and modelling Land-use change monitoring Forest cover mapping Fire detection Weather forecasting Measuring Earth's thermal radiation for atmospheric applications Mission Orbit: Orbit Type: Sun-synchronous Orbit Height: 814 km Inclination: 98.6o Repeat Cycle: 27 days Payload: OLCI (Ocean and Land Colour Instrument) SLSTR (Sea and Land Surface Temperature Radiometer) SRAL (Synthetic Aperture Radar Altimeter) MWR (Microwave Radiometer) DORIS LRR (Laser Retroreflector) GNSS (Global Navigation Satellite System) Resolution and Swath Width: OLCI - 1270 km SLSTR - 1420 km Configuration: In addition to the observation instruments, the Sentinel-3 spacecraft will carry the GNSS (Global Navigation Satellite System) and LRR (Laser Retro Reflector) instruments. GNSS will provide precise orbit determination and can track multiple satellites simultaneously. LRR will be used to accurately locate the satellite in orbit using a laser ranging system. The dimensions of the craft are: 3.7 x 2.2 x 2.2 m with a weight (at time of launch) of 1250 kg. Launch vehicle: Rockot (Sentinel-3A and -3B) Operator: EUMETSAT Contractors: Thales Alenia Space is the prime contractor, responsible for constructing the spacecraft and the SRAL instrument, as well as contributing to the supply of the SLSTR instrument. Many European companies are involved in supplying the SLSTR instrument, including SELEX Galileo, RAL (Rutherford Appleton Laboratory), Jena-Optronik, Thales Alenia Space, ABSL and ESA-ESTEC. EADS CASA Espacio is contracted to provide the MWR instrument. CNES is contracted to provide the DORIS instrument. Eurockot and Arianespace are contracted to launch the spacecraft.