January 6, 2017

Satellites

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The programme includes a space component composed of 6 families of satellites (the Sentinels) to supply the observations needed for the deployment of the services for operational monitoring of air quality, oceans, land use and land management, or emergency situations monitoring as well as climate change. These observations are completed by contributing space missions managed by other entities (member states, commercial missions).

Sentinel-1
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Observation of oceans and continents
Two satellites with a polar orbit
Payload: C-band radar imager
Sentinel-1A launch: 3 April 2014 (Sentinel-1B: 25 April 2016)
Sentinel-2
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Observation of continents: vegetation, soils, coastal areas
Two satellites with a polar orbit
Payload: high resolution optical imager 
Sentinel-2A launch: 23 June 2015 (Sentinel-2B: spring 2017)
Sentinel-3
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Observation of the oceans and continents: ocean topography, surface temperature, colour (spectral response)
Two satellites with a polar orbit
Payload: radar altimeter, large field-of-view optic imagers.
Sentinel-3A launch: 16 February 2016 (Sentinel-3B: end of 2017)
Sentinel-4
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Observation of atmospheric chemical composition at high temporal and spatial resolution
Payload: UV-VIS-PIR spectrometer and IR sounder. Two sets on board MTG satellites
Delivery in 2018
Sentinel-5P
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Mission gap filler before the arrival of Sentinel-5
Observation of atmospheric chemical composition
Payload: TROPOMI
Launch in 2017
Sentinel-5
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Observation of atmospheric chemical composition
Payload (on board post-EPS MetOp): UV-VIS-PIR spectrometer, IR sounder, visible imager, multidirectional and multipolarization imager (3MI)
Delivery of the 1st unit in 2019 (second one in 2027)
Jason-CS / Sentinel-6
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Reference mission for oceans and large rivers topography
Two satellites
Payload: altimeter , radiometer, DORIS
Jason CS-A launch in 2020 and Jason-CS B in 2026