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EGNOS deployment

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ESA / Applications / Navigation / EGNOS

The deployment of the European Geostationary Navigation Overlay Service (EGNOS) covers a large area and involves various countries and partner organisations.
By correcting GPS signals, EGNOS gives an accuracy of down to 1.5 metres. EGNOS achieves this through a network of ground elements installed throughout Europe.

The elements that make up the EGNOS system include: Ranging and Integrity Monitoring Stations (RIMS) which pick up GPS signals, Master Control Centres (MCCs) to process the data delivered by the RIMS, and uplink stations which send the signal to three geostationary satellites to then relay it back to users on the ground.
After the successful completion of its development, ownership of EGNOS was transferred to the European Commission on 1 April 2009. EGNOS operations are now managed by the European Commission through a contract with an operator based in France, the European Satellite Services Provider.
The EGNOS Open Service has been available since 1 October 2009 and the EGNOS Safety-of-Life Service available since 2 March 2011. EGNOS positioning data are freely available in Europe through satellite signals to anyone equipped with an EGNOS-enabled GPS receiver.

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