The IGS Network is a collection of heterogeneous stations.
Access Station Guidelines, the Site Log Manager or propose a new IGS station.
View the global network of all 508 ground tracking stations.
View data access definitions, FTPs,Data Centers and Data Center Coordinators.
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. See spatial and temporal coverage; data volume and formats; and related resources.
The GNSS data consist of the receiver’s observation data, the broadcast orbit information of the tracked satellites, and supporting data collected from co-located instruments.
The Real-time Analysis Center Coordinator (RTACC) has operational responsibility for the generation of the official combination products.
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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.
Nothing from 14 Jul 2020 to 13 Oct 2020.