International Earth Rotation and Reference Systems Service

International Earth Rotation and Reference Systems Service

The IERS logo
Abbreviation	IERS
Website	www.iers.org

The International Earth Rotation and Reference Systems Service (IERS), formerly the International Earth Rotation Service, is the body responsible for maintaining global time and reference frame standards, notably through its Earth Orientation Parameter (EOP) and International Celestial Reference System (ICRS) groups.