IERS
E885216
The International Earth Rotation and Reference Systems Service (IERS) is an international organization that provides global standards and data for Earth rotation, reference frames, and timekeeping used in astronomy, geodesy, and navigation.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IERS canonical | 5 |
How this entity was disambiguated
This entity first appeared as the object of triple T10723572 — 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: IERS Context triple: [IERS ICRS Centre, parentOrganization, IERS]
-
A.
IERS Central Bureau
The IERS Central Bureau is the coordinating office of the International Earth Rotation and Reference Systems Service, responsible for managing its operations and disseminating Earth orientation and reference system data.
-
B.
IERS Rapid Service/Prediction Centre
The IERS Rapid Service/Prediction Centre is a specialized unit that rapidly determines and forecasts Earth orientation parameters, such as polar motion and variations in the length of day, for global geodetic and astronomical applications.
-
C.
IERS Analysis Centres
IERS Analysis Centres are specialized institutions that process geodetic and astronomical data to produce precise Earth orientation and reference frame products for the global scientific community.
-
D.
IERS ICRS Centre
The IERS ICRS Centre is the component of the International Earth Rotation and Reference Systems Service responsible for realizing, maintaining, and providing access to the International Celestial Reference System used for precise astronomical and geodetic measurements.
-
E.
IERS Conventions
IERS Conventions are a set of internationally recognized technical standards and models that define how to precisely measure and reference Earth’s rotation, orientation, and reference frames for geodesy and astronomy.
- 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: IERS Target entity description: The International Earth Rotation and Reference Systems Service (IERS) is an international organization that provides global standards and data for Earth rotation, reference frames, and timekeeping used in astronomy, geodesy, and navigation.
-
A.
IERS Central Bureau
The IERS Central Bureau is the coordinating office of the International Earth Rotation and Reference Systems Service, responsible for managing its operations and disseminating Earth orientation and reference system data.
-
B.
IERS Rapid Service/Prediction Centre
The IERS Rapid Service/Prediction Centre is a specialized unit that rapidly determines and forecasts Earth orientation parameters, such as polar motion and variations in the length of day, for global geodetic and astronomical applications.
-
C.
IERS Analysis Centres
IERS Analysis Centres are specialized institutions that process geodetic and astronomical data to produce precise Earth orientation and reference frame products for the global scientific community.
-
D.
IERS ICRS Centre
The IERS ICRS Centre is the component of the International Earth Rotation and Reference Systems Service responsible for realizing, maintaining, and providing access to the International Celestial Reference System used for precise astronomical and geodetic measurements.
-
E.
IERS Conventions
IERS Conventions are a set of internationally recognized technical standards and models that define how to precisely measure and reference Earth’s rotation, orientation, and reference frames for geodesy and astronomy.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical service
ⓘ
geodetic service ⓘ international organization ⓘ |
| abbreviation | IERS ⓘ |
| cooperatesWith |
Bureau International des Poids et Mesures
ⓘ
linked to:
International Bureau of Weights and Measures
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 ⓘ |
| field |
Earth rotation
ⓘ
astronomy ⓘ geodesy ⓘ navigation ⓘ reference frames ⓘ reference systems ⓘ timekeeping ⓘ |
| fullName | International Earth Rotation and Reference Systems Service ⓘ |
| hasComponent |
IERS Analysis Centers
ⓘ
linked to:
IERS Analysis Centres
IERS Combination Centers ⓘ
linked to:
IERS Combination Centres
IERS Conventions Center ⓘ IERS Earth Orientation Center ⓘ
linked to:
IERS Rapid Service/Prediction Centre
IERS ICRS Center ⓘ
linked to:
IERS ICRS Centre
IERS ITRS Center ⓘ IERS Product Centers ⓘ
linked to:
IERS data and product centres
IERS Rapid Service and Predictions Center ⓘ
linked to:
IERS Rapid Service/Prediction Centre
|
| product |
Earth Orientation Parameters
ⓘ
International Celestial Reference System ⓘ International Terrestrial Reference Frame ⓘ
linked to:
ITRF realizations
bulletins on Earth rotation ⓘ conventions for reference systems ⓘ leap second recommendations ⓘ time scale comparisons ⓘ |
| purpose |
coordinate reference systems used in astronomy
ⓘ
coordinate reference systems used in geodesy ⓘ maintain international celestial reference frame ⓘ maintain international terrestrial reference frame ⓘ provide Earth orientation data ⓘ provide global standards for Earth rotation ⓘ provide global standards for reference frames ⓘ provide global standards for reference systems ⓘ provide global standards for timekeeping ⓘ support precise navigation ⓘ |
| usesDataFrom |
Doppler Orbitography and Radiopositioning Integrated by Satellite
ⓘ
Global Navigation Satellite Systems ⓘ Lunar Laser Ranging ⓘ
linked to:
Lunar Laser Ranging experiments
Satellite Laser Ranging ⓘ Very Long Baseline Interferometry ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: IERS Description of subject: The International Earth Rotation and Reference Systems Service (IERS) is an international organization that provides global standards and data for Earth rotation, reference frames, and timekeeping used in astronomy, geodesy, and navigation.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.