The primary objectives of the IERS are to serve the astronomical, geodetic and geophysical communities by providing data and standards related to Earth rotation and reference frames.
IERS organization chart
The organization chart gives an overview of the main IERS components.
IERS structure details
A list of all IERS components and their tasks.
A world map with all components of the IERS.
Relations to other organizations
Description of all official relations of IERS to other organizations and lists of the mutual representatives.
IERS Terms of Reference
The Terms of Reference define the objectives of IERS, its components and their tasks, as well as the IERS Associate Members and correspondents.
Reports and minutes
Reports of IERS to IAG and minutes of the IERS Directing Board meetings.
Publications about the IERS
IERS bibliography - Links to publications about IERS.
History of the IERS
IERS Timeline - Past IERS officers - Former IERS Components - Historical documents.
Contact the IERS
Contact information for general questions and a list of all IERS components with links to contact addresses.