The International Earth Rotation and Reference Systems Service (IERS), formerly the International Earth Rotation Service, is the body responsible for maintaining...

0° The IERS Reference Meridian (IRM), also called the International Reference Meridian, is the prime meridian (0° longitude) maintained by the International...

The Institute for Energy Research (IER) is a Washington, D.C.–based non-profit organization that "conducts intensive research and analysis on the functions...

about one second of mean solar time (such as UT1) at 0° longitude, (at the IERS Reference Meridian). The mean solar day is slightly longer than 86,400 SI...

Chicago Press. Topping, Peter (1975). "The Morea, 1311–1364". In Setton, Kenneth M.; Hazard, Harry W. (eds.). A History of the Crusades, Volume III: The...

advance by the International Earth Rotation and Reference Systems Service (IERS), to ensure that the difference between the UTC and UT1 readings will never...

322, (7740-7752). 1992. Economist Newspaper Limited. Hall (2010), p. 224 Kenneth Hall, "Economic History of Early South Asia", in Nicholas Tarling (ed)...

L'unification du Yémen antique. La lutte entre Saba’, Himyar et le Hadramawt de Ier au IIIème siècle de l'ère chrétienne. Paris, 1990 (Bibliothèque de Raydan...

Orientation". IERS Rapid Service / Prediction Center, U.S. Naval Observatory. "Common Units and Conversions in Earth Orientation". IERS Rapid Service...

used worldwide for timekeeping and navigation. The modern standard, the IERS Reference Meridian, is based on the Greenwich meridian, but differs slightly...

throughout history. Earth's current international standard prime meridian is the IERS Reference Meridian. It is derived, but differs slightly, from the Greenwich...

structure of the universe". Retrieved 1 November 2014. "Chapter 1, Table 1-1", IERS Conventions (2003) WHERE ARE THE VOYAGERS?, retrieved 14 October 2014 NASA...

2011 at the Wayback Machine new site, being populated USNO IERS old site, to be abandoned IERS Earth Orientation Center: Earth rotation data and interactive...

was originally defined as being the Greenwich meridian but is now the "IERS Reference Meridian": they are not quite the same. There is no such thing...

list) – Aymar de Bourbon [fr], Lord (915–953) Aymon Ier de Bourbon [fr], Lord (953–959) Archambaud Ier de Bourbon [fr], Lord (959–990) Archambaud II de Bourbon [fr]...

"La Chefferie de Sébennytos de Piankhy à Psammétique Ier", RdE 55 (2004), pp. 95–111 Kenneth Kitchen, The Third Intermediate Period in Egypt (1100–650...

Gérard Petit and Brian Luzum, ed. (2010). "Table 1.1: IERS numerical standards" (PDF). IERS technical note no. 36: General definitions and numerical...

Bradley, Jr. (Class of 1973) – Founder of the Institute for Energy Research (IER) George W. Bush – 43rd president of the United States Jeb Bush – 43rd governor...

130 "Les Soldats de Leopold Ier et Leopold II",D 1986/0197/03 Bruxelles Guy Derie, page 124 "Les Soldats de Leopold Ier et Leopold II", D 1986/0197/03...

region located at the northernmost part of Earth. The Arctic region, from the IERS Reference Meridian travelling east, consists of parts of northern Norway...

Payraudeau, De nouvelles annales sacerdotales de Siamon, Psousennès II et Osorkon Ier., BIFAO 108 (2008), p.294 Payraudeau, BIFAO 108, p.294 Karl Jansen-Winkeln...

Service (IERS) Working Group (2004). "General Definitions and Numerical Standards" (PDF). In McCarthy, Dennis D.; Petit, Gérard (eds.). IERS Conventions...

of quasars for astrometry and geodesy with numerous global collaborators (IERS), in order to produce Earth orientation parameters and to realize the celestial...

Intermediate Origin (CIO)". Glossary of the IERS Conventions (2010). "Celestial Ephemeris Origin". Glossary of the IERS Conventions (2010). Urban & Seidelmann...

Brian (eds.). "IERS Conventions (2010)". IERS. p. 19. Archived from the original on 30 September 2019. Retrieved 16 April 2021. IERS (13 March 2021)...

2022. International Earth Rotation and Reference System Service. (2010).IERS EOP PC Useful constants. Archived October 29, 2012, at the Wayback Machine...

degrees or other units) east or west of a given prime meridian (currently, the IERS Reference Meridian). In other words, it is a coordinate line for longitudes...

ISBN 978-0-5213-7586-3. Green, Judith (2003). "Le Gouvernement d'Henri Ier Beauclerc en Normandie". In Bouet, Pierre; Gazeau, Véronique (eds.). La Normandie...

family International Terrestrial Reference System (ITRS) maintained by the IERS are geocentric, and internally consistent, at the few-cm level, while still...

16 June 2022. Bizouard, Christian (6 July 2016). "Bulletin C 52". Paris: IERS. Archived from the original on 13 August 2017. Retrieved 31 December 2016...