International GNSS Service

The International GNSS Service (IGS) has ensured open access, high-quality GNSS data products since 1994. These products enable access to the definitive global reference frame for scientific, educational, and commercial applications – a tremendous benefit to the public, and key support element for scientific advancements.

The IGS at a Glance

* A voluntary federation of over 200 self-funding agencies, universities, and research institutions in more than 100 countries/regions; working together to provide the highest precision GPS satellite orbits in the world. * Providing free and open access to the highest precision products available for scientific advancement and public benefit. These products support a wide variety of applications that touch millions of users in virtually all segments of the global economy * Producing products that support realization of the International Terrestrial Reference Frame while providing access to tracking data from over 400 worldwide reference stations * Working for the continuous development of new applications and products through Working Groups and Pilot Projects * Supporting geodetic research and scholarly publications * Functioning as a component of the Global Geodetic Observing System (GGOS) and member of the World Data System (WDS)