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Mission The International Laser Ranging Service (ILRS) is a service of the International Association of Geodesy (IAG), officially established in July 1999. It provides freely and openly available Sate

The Technique Centres (TCs) are autonomous independent services that cooperate with the IERS. The TCs are responsible for developing and organizing the activities of each contributing observational te

Web site geophy.uni.lu/ggfc-combination/about-2.html (Link no longer active) See also Annual Report 2008-09: 3.5.6 Global Geophysical Fluids Centre (not accessible) [PDF, 205 KB] Annual Report 2010: 3

Mission Within the IERS Global Geophysical Fluids Center the Special Bureau for the Oceans (SBO) is an effort of GFZ Helmholtz Centre for Geosciences to provide data relating to non-tidal changes in o

Mission The ITRS Centre is responsible for the maintenance of the International Terrestrial Reference System (ITRS) and the International Terrestrial Reference Frame (ITRF), including network coordina

Mission The IERS Conventions Centre, under the guidance of the IERS Conventions Editorial Board, is responsible for the maintenance of the IERS conventional models, constants and standards. Web site h

Mission The IERS ICRS Center is responsible for the maintenance of the International Celestial Reference System (ICRS) and the International Celestial Reference Frame (ICRF). Web site http://hpiers.ob

List of Publications Title: The IERS Retreat: How to improve Earth Rotation products? Author: Thaller, Daniela; Bachmann, Sabine Publication: Proceedings of the Journées 2013 "Systèmes de Référence Sp

Mission The IERS Rapid Service/Prediction Centre is responsible for providing Earth Orientation Parameters (EOPs) on a rapid turnaround basis, primarily for real-time users and others requiring high-q

The International Earth Rotation Service (IERS) was established in 1987 by the International Astronomical Union and the International Union of Geodesy and Geophysics and it began operation on 1 Januar