System Status

The Galileo system is comprised of numerous components, including the satellites in space, a ground segment spread across several locations, receiver manufacturers, the downstream market and the end user. 

Use the links below to discover more about the many components working together to make Galileo a reality.


Galileo Constellation Information

General information and status updates on all the satellites operating within the Galileo constellation.

Orbital and Technical Parameters

Information about the reference orbits and technical parameters for each Galileo satellite. 

Active user notifications

All information relating to Active User Notifications (NAGUs)

Archived user notifications

Archived information relating to all past user notifications (NAGUs)

NAGU Information

Information pertaining to both NAGU Specific and NAGU General notice advisories to Galileo users.

Almanac data

Database of current and all past almanac data reports.

Almanac Information

Parameters and definitions in regards to Galileo almanac data. 

GNSS Service Centre (GSC) 

The European GNSS Service Centre (GSC) is an integral part of the European GNSS infrastructure that provides the single interface between the Galileo system and the users of the Galileo Open Service (OS) and the Galileo Commercial Service (CS).

Updated: Aug 29, 2017