 Welcome to the International GPS ServiceThe U.S. Global Positioning System (GPS) constellation of satellites plays a major role in regional and global studies of Earth. In the face of continued growth and diversification of GPS applications, the worldwide scientific community has made an effort to promote international standards for GPS data acquisition and analysis, and to deploy and operate a common, comprehensive global tracking system. As part of this effort, the International GPS Service (IGS), along with a multinational membership of organizations and agencies, provides GPS orbits, tracking data, and other high-quality GPS data and data products on line in near real time to meet the objectives of a wide range of scientific and engineering applications and studies.
The Global Data Centers archive and provide on-line access to tracking data and data products. The online data are employed by the Analysis Centers to create a range of products, which are then transmitted to the Global Data Centers for public use. This web site is part of the IGS Central Bureau Information System (CBIS), providing both IGS member organizations and the public with a gateway to all the IGS global data and data product holdings, as well as other valuable information. IGS Publications and Web Authors: see Submission Guidelines.
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