Innovation and Networks Executive Agency

Priority Project 15 Priority Project 15


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Galileo is Europe’s initiative for a state-of-the-art global navigation satellite system, providing a highly accurate, global positioning service under civilian control. While providing autonomous navigation, positioning and timing services, Galileo will at the same time be interoperable with GPS and GLONASS, the two other global satellite navigation systems. The fully deployed Galileo system will consist of 30 satellites and associated ground infrastructure.


The EGNOS infrastructure improves the accuracy of GPS by means of differential corrections and implements warnings of system malfunction (integrity) of the GPS constellations.


Description of the European GNSS programmes Galileo and EGNOS is available on:

Learn more about the active projects managed by the Agency that make up Priority Project 15:

As this website continues to be updated and enhanced, more project information will be added as it becomes available!

Trans-European Satellite Navigation System (Galileo): Development and validation phase