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Program: Sentinel

Renamed Copernicus in 2013.

European program for the Global Monitoring for Environment and Security system (GMES). It will be complemented by European radar and electro-optical imaging satellites already in orbit or currently in development. 5 satellites are planned.

Sentinel 1 is an all-weather, day-and-night radar imaging satellite mission for land and ocean services (mapping of urban areas and environmental impacts, monitoring of land surface motion risks, surveillance of marine environment, maritime security, monitoring of sea-ice zones, monitoring of forest and climate change.). Will replace ERS.

Sentinel 2 is a high-resolution optical imaging mission for land services. Contract with Astrium signed in Apr 2008 for EUR 195 million. The second satellite was ordered in April 2010 for EUR 105 million.

Sentinel-3 is for a global ocean and land monitoring mission which includes an altimetry instrument package (devoted to oceanography and land-vegetation monitoring). Planned in 2015. Contract with Thales Alenia Space was signed in Apr 2008 for EUR 305 million.

EU granted finance for the first 3 satellites in early 2008, worth EUR 624 million. In Dec 2013, a 3.79 billion EUR budget was allocated for 2014-2020, replacing the GMES program.

Sentinel-4 and 5 will be dedicated to meteorology and climatology through atmospheric chemistry. Sentinel 5 will be onboard a Metop Second Generation satellite in 2021.

In Jan 2009, an additional agreement added EUR 205 million contribution for segment 2.

In Dec 2009 Sentinel 1B & 3B were ordered for EUR 270 million. They are the duplicate of Sentinel 1A & 3A.

TT&C in S-band, date in X-band

In early 2011, the European Data Relay System (EDRS) contract was signed to provide 2 satellites services from Astrium Services to support Sentinel traffic. The European Commission will invest EUR 280 million, Astrium EUR 100 million. Other customers will be able to use the payload.

In late-2011, Astrium UK was awarded a EUR 45.5 million contract to build a low cost satellite to monitor atmospheric chemistry named Sentinel 5 Precursor (S5p). Planned for launch in 2015. Will carry the TROPOMI instrument (will take measurements of ozone, nitrogen dioxide, sulphur dioxide, and other atmospheric pollutants).

In late-2015 TAS Italy signed a 402 million EUR contract to build Sentinel 1C and 1D. Will use the Prima platform, approx 2300 kg at launch. Resolution between 5 and 25m.

In Jan 2016, Airbus DS signed a 285 million EUR contract for 2 new Sentinel-2 optical satellites (2C 2D).

In 2018 the service started using EDRS as relay, with speeds upto 1.8 Gbps

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