International Earth Rotation and Reference Systems Service

All labels observed (6)

Label	Occurrences
International Earth Rotation and Reference Systems Service canonical	17
IERS	4
IERS Bulletins	1
IERS Conventions Centre	1
IERS Earth Orientation Centre	1
International Celestial Reference Frame	1

How this entity was disambiguated

This entity first appeared as the object of triple T388568 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: International Earth Rotation and Reference Systems Service
Context triple: [Coordinated Universal Time, governingBody, International Earth Rotation and Reference Systems Service]

A. International Union of Radio Science
The International Union of Radio Science (URSI) is a global scientific organization that promotes research, collaboration, and knowledge exchange in all fields of radio science and electromagnetic waves.
B. International Bureau
The International Bureau is the permanent secretariat and administrative center of the Universal Postal Union, responsible for coordinating international postal activities and supporting member countries.
C. International Atomic Time
International Atomic Time is a high-precision time standard based on the combined output of atomic clocks worldwide, serving as the fundamental reference for modern civil and scientific timekeeping.
D. Institut de Physique du Globe de Paris
The Institut de Physique du Globe de Paris is a renowned French research and higher-education institution specializing in Earth sciences, including geophysics, volcanology, seismology, and planetary science.
E. International Science Council
The International Science Council is a global non-governmental organization that brings together scientific unions and national academies to promote international scientific collaboration and influence science policy worldwide.
F. None of above. chosen
G. Unsure - the case is ambiguous/there is not enough information to decide.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: International Earth Rotation and Reference Systems Service
Target entity description: 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.

A. International Union of Radio Science
The International Union of Radio Science (URSI) is a global scientific organization that promotes research, collaboration, and knowledge exchange in all fields of radio science and electromagnetic waves.
B. International Bureau
The International Bureau is the permanent secretariat and administrative center of the Universal Postal Union, responsible for coordinating international postal activities and supporting member countries.
C. International Atomic Time
International Atomic Time is a high-precision time standard based on the combined output of atomic clocks worldwide, serving as the fundamental reference for modern civil and scientific timekeeping.
D. Institut de Physique du Globe de Paris
The Institut de Physique du Globe de Paris is a renowned French research and higher-education institution specializing in Earth sciences, including geophysics, volcanology, seismology, and planetary science.
E. International Science Council
The International Science Council is a global non-governmental organization that brings together scientific unions and national academies to promote international scientific collaboration and influence science policy worldwide.
F. None of above. chosen

Statements (50)

Predicate	Object
instanceOf	international scientific organization ⓘ
abbreviation	International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ surface form: IERS
cooperatesWith	International Bureau of Weights and Measures ⓘ surface form: 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 ⓘ International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ surface form: IERS Conventions Centre International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ surface form: IERS Earth Orientation Centre IERS ICRS Centre ⓘ International Terrestrial Reference System ⓘ surface form: IERS ITRS Centre IERS Rapid Service/Prediction Centre ⓘ
maintains	International Celestial Reference System ⓘ surface form: International Celestial Reference Frame International Celestial Reference System ⓘ International Terrestrial Reference System ⓘ surface form: 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 ⓘ International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ surface form: 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 ⓘ

How these facts were elicited

Referenced by (25)

Full triples — surface form annotated when it differs from this entity's canonical label.

Coordinated Universal Time → governingBody → International Earth Rotation and Reference Systems Service ⓘ

Coordinated Universal Time → leapSecondDecisionBy → International Earth Rotation and Reference Systems Service ⓘ

Prime Meridian → definedBy → International Earth Rotation and Reference Systems Service ⓘ

United States Naval Observatory, Washington, D.C. → contributesTo → International Earth Rotation and Reference Systems Service ⓘ

subject surface form: United States Naval Observatory

this entity surface form: International Celestial Reference Frame

International Earth Rotation and Reference Systems Service → abbreviation → International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ

this entity surface form: IERS

International Earth Rotation and Reference Systems Service → hasComponent → International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ

this entity surface form: IERS Earth Orientation Centre

International Earth Rotation and Reference Systems Service → hasComponent → International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ

this entity surface form: IERS Conventions Centre

International Earth Rotation and Reference Systems Service → publishes → International Earth Rotation and Reference Systems Service self-linksurface differs ⓘ

this entity surface form: IERS Bulletins

Earth-centered Earth-fixed → definedBy → International Earth Rotation and Reference Systems Service ⓘ

this entity surface form: IERS

International Terrestrial Reference System → maintainedBy → International Earth Rotation and Reference Systems Service ⓘ

International Terrestrial Reference System → abbreviationOfMaintainer → International Earth Rotation and Reference Systems Service ⓘ

this entity surface form: IERS

International Celestial Reference System → maintainedBy → International Earth Rotation and Reference Systems Service ⓘ

International Celestial Reference System → abbreviation → International Earth Rotation and Reference Systems Service ⓘ

this entity surface form: IERS

Earth Orientation Parameters → publishedBy → International Earth Rotation and Reference Systems Service ⓘ

International GNSS Service → collaboratesWith → International Earth Rotation and Reference Systems Service ⓘ

International VLBI Service for Geodesy and Astrometry → collaboratesWith → International Earth Rotation and Reference Systems Service ⓘ

International Laser Ranging Service → collaboratesWith → International Earth Rotation and Reference Systems Service ⓘ

International DORIS Service → collaboratesWith → International Earth Rotation and Reference Systems Service ⓘ

IERS Conventions → publishedBy → International Earth Rotation and Reference Systems Service ⓘ

subject surface form: IERS Conventions 2010

IERS ICRS Centre → partOf → International Earth Rotation and Reference Systems Service ⓘ

IERS ICRS Centre → parentOrganization → International Earth Rotation and Reference Systems Service ⓘ

IERS Rapid Service/Prediction Centre → partOf → International Earth Rotation and Reference Systems Service ⓘ

IERS Analysis Centres → partOf → International Earth Rotation and Reference Systems Service ⓘ

All labels observed (6)

How this entity was disambiguated Show

Statements (50)

How these facts were elicited Show

Referenced by (25)

How this entity was disambiguated

How these facts were elicited