International Earth Rotation and Reference Systems Service

E49119

international scientific organization

The International Earth Rotation and Reference Systems Service (IERS) is an international organization that monitors Earth's rotation and maintains global reference systems used for precise timekeeping, navigation, and geodesy.

Aliases (5)

IERS ×2
IERS Bulletins ×1
IERS Conventions Centre ×1
IERS Earth Orientation Centre ×1
International Celestial Reference Frame ×1

Statements (50)

Predicate	Object
instanceOf	international scientific organization →
abbreviation	IERS →
cooperatesWith	Bureau International des Poids et Mesures → International Astronomical Union → International DORIS Service → International GNSS Service → International Laser Ranging Service → International Union of Geodesy and Geophysics → International VLBI Service for Geodesy and Astrometry →
coordinates	global geodetic observing system components →
dataFormat	reference frame realizations → time series →
field	astronomy → geodesy → geophysics → navigation → timekeeping →
hasComponent	IERS Analysis Centres → IERS Conventions Centre → IERS Earth Orientation Centre → IERS ICRS Centre → IERS ITRS Centre → IERS Rapid Service/Prediction Centre →
maintains	International Celestial Reference Frame → International Celestial Reference System → International Terrestrial Reference Frame → International Terrestrial Reference System →
monitors	irregularities in Earth rotation → polar motion of Earth → variations in length of day →
provides	Earth Orientation Parameters → UT1–UTC values → length of day variations → polar motion data → precession and nutation data →
publishes	Earth orientation parameter series → IERS Bulletins → IERS Conventions →
purpose	coordinating reference frames for geodesy and astronomy → maintaining global reference systems → monitoring Earth rotation → providing Earth orientation parameters →
scope	global →
usedFor	global positioning and GNSS applications → maintenance of Coordinated Universal Time → precise satellite orbit determination → realization of celestial reference frames → realization of terrestrial reference frames → scientific studies of Earth rotation → space navigation →

Referenced by (10)

Subject (surface form when different)	Predicate
Earth-centered Earth-fixed → Earth-centered Earth-fixed ("IERS") → Prime Meridian →	definedBy
International Earth Rotation and Reference Systems Service ("IERS Earth Orientation Centre") → International Earth Rotation and Reference Systems Service ("IERS Conventions Centre") →	hasComponent
International Earth Rotation and Reference Systems Service ("IERS") →	abbreviation
United States Naval Observatory ("International Celestial Reference Frame") →	contributesTo
Coordinated Universal Time →	governingBody
Coordinated Universal Time →	leapSecondDecisionBy
International Earth Rotation and Reference Systems Service ("IERS Bulletins") →	publishes