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    ESA > About Us > Business with ESA

    Industry delivers EGNOS system

    EGNOS Operational Readiness Review briefing, Toulouse
    EGNOS Operational Readiness Review briefing, Toulouse
    29 April 2005

    A key step for satellite navigation in Europe has started in Toulouse with a technical review of the European Geostationary Navigation Overlay Service (EGNOS). This review will mark the completion of more than 8 years of intensive work.

    It is the Operational Readiness Review (ORR) which involves the acceptance of the EGNOS system delivered to ESA by an industrial consortium lead by Alcatel Space with more than forty European companies.

    EGNOS is a joint project of the European Space Agency (ESA), the European Commission (EC) and Eurocontrol - the European Organisation for the Safety of Air Navigation. It is Europe’s contribution to the first stage of the global navigation satellite system (GNSS), paving the way for Galileo, the first civil complete satellite navigation system.

    EGNOS
    EGNOS has widespread applications

    Three special EGNOS satellites located in geostationary orbit above Europe transmit a GPS-like signal that improves the GPS accuracy down to 1-2 meters. Service guarantee information is also provided.

    More than 60 international experts from ESA will gather in Toulouse during May 2005. Eurocontrol, the Galileo Joint Undertaking and the EGNOS Operator and Infrastructure Group will take part in this comprehensive review.

    Experts will assess whether the EGNOS system can be accepted as ready for operation. The focus will be on several aspects such as the functional qualification of the system and its operability, the stability of the system in its real environment, the system delivered performances and compliance to the requirements and the Safety and Product assurance issues including the qualification of the software and the completeness of deliverables.

    This review concludes the earlier work completed in the previous phases such as the System Preliminary Design Review in November 1998, a Critical Design Review in January 2002 followed by the EGNOS Factory Qualification Review in January 2004.

    EGNOS calendar


    The EGNOS network is made up of more than 40 ground elements deployed all over Europe

    Today, the deployment of EGNOS is nearly complete with 31 out 34 Ranging and Integrity Monitoring Stations (RIMS) deployed in 19 countries; 4 MCC (Mission Control Centres) deployed in Spain, Italy, UK and Germany; 6 Navigation Land Earth Stations (NLESs) deployed in Italy, France, Spain and the UK and some support facilities in Spain and France.

    After this review, EGNOS initial operations will start through a contract with the European Satellite Service Provider (ESSP) and by early 2006, EGNOS open service will be declared formally available to the general public over Europe for non safety-of-life applications, free of direct charges. Today, general public receivers can already receive the EGNOS signal on a test basis.

    Early 2007, after the certification process, EGNOS safety-of-life services will be declared available.

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