Precise Ephemeris
Precise ephemerides are high-accuracy satellite orbit products generated through post-processing. They are provided by organizations like International GNSS Service. They can achieve centimeter-level accuracy.
Precise ephemerides are high-accuracy satellite orbit products generated through post-processing. They are provided by organizations like International GNSS Service. They can achieve centimeter-level accuracy.

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.
The primary language of this website is English – however, the integrated GTranslate tool enables automatic translation into several languages:
Please note that translations into other languages may not be accurate. For reliable information, refer to the English version of the website.
