The IGS Network is a cooperatively operated global network of ground tracking stations.
Access Station Guidelines, the Site Log Manager or propose a new IGS station.
View and learn more about the global network of all IGS ground tracking stations.
Products derived from GNSS data archived in the CDDIS are generated and submitted by the IGS analysis and associate analysis centers.
Learn more about GNSS data and products derived from it.
View Daily, Hourly, High Rate, Ephemerides, MGEX, and Real-Time data.
View data access definitions, FTPs,Data Centers and Data Center Coordinators.
Learn more about the RT Working Group and RTS Pilot Project.
Sign up to become an IGS Member.
Subscribe to our various mailing lists.
View upcoming and past IGS Events.
View upcoming and past IGS Workshops.
The International GNSS Service (IGS) has ensured open access, high-quality GNSS data products since 1994.