experts in precise navigation and orbit determination

The Navigation Support Office is ESA'scentreof expertise in the precise useof navigation satellite systems.  We contribute to ESA missions, third-party activities, and Europe's key navigationprogrammes: Galileo and EGNOS.  

The Office is headquartered at the European Space Operations Centre (ESOC) in Darmstadt, Germany.  Using our state-of-the-art Navigation Facility, our experts advance the theory and operations of precision navigation and timing.

What We Do

GNSS Data and Products


Every day, we publish precise orbit and clock products, earth rotation parameters, ionospheric maps, and more. Learn more...

ESA GNSS Observation Network


We maintain a worldwide network of GNSS receivers from which our products are derived, independently and robustly. Learn more...

Navigation for ESA


From the precise orbit determination of LEO satellites to the precision of interplanetary communication, we play a key role in ESA operations. Learn more...

Navigation for Science


We represent ESA to the worldwide geodetic community, working with our partners to push the limits of precise position and time. Learn more...

Video Intro: "Delivering Global Navigation Information"