CGCN – China Geodetic Coordinate Network
CGCN is the terrestrial reference frame used by the BeiDou system. It defines the coordinate system for satellite orbits and positioning. It ensures consistency in navigation computations.
IAG as part of the IUGG
IAG Related Organisations
IAG collaborates closely with numerous organizations within geodesy and beyond. See the list for details.
This website is provided by the IAG Secretariat and the GGOS Coordinating Office, which are hosted by the BEV – Federal Office of Metrology and Surveying (Bundesamt für Eich- und Vermessungswesen) in Vienna, Austria.