IERS ICRS Centre
E252881
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.
All labels observed (4)
| Label | Occurrences |
|---|---|
| IERS ICRS Center | 1 |
| IERS ICRS Centre canonical | 1 |
| IERS ICRS Centre data and product centre | 1 |
| IERS VLBI Coordinating Centre | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2184525 — 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 ICRS Centre Context triple: [International Earth Rotation and Reference Systems Service, hasComponent, IERS ICRS Centre]
-
A.
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.
-
B.
International Earth Rotation and Reference Systems Service
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.
-
C.
International Celestial Reference System
The International Celestial Reference System is the standard, high-precision coordinate framework used in astronomy and geodesy to define positions of celestial objects relative to distant quasars.
-
D.
Earth Orientation Parameters
Earth Orientation Parameters are a set of time-varying values that precisely describe the irregular rotation and orientation of the Earth in space for applications like navigation, astronomy, and geodesy.
-
E.
International VLBI Service for Geodesy and Astrometry
The International VLBI Service for Geodesy and Astrometry is an international organization that coordinates Very Long Baseline Interferometry observations to provide precise measurements of Earth’s rotation, reference frames, and celestial positions.
- 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 ICRS Centre Target entity description: 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.
-
A.
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.
-
B.
International Earth Rotation and Reference Systems Service
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.
-
C.
International Celestial Reference System
The International Celestial Reference System is the standard, high-precision coordinate framework used in astronomy and geodesy to define positions of celestial objects relative to distant quasars.
-
D.
Earth Orientation Parameters
Earth Orientation Parameters are a set of time-varying values that precisely describe the irregular rotation and orientation of the Earth in space for applications like navigation, astronomy, and geodesy.
-
E.
International VLBI Service for Geodesy and Astrometry
The International VLBI Service for Geodesy and Astrometry is an international organization that coordinates Very Long Baseline Interferometry observations to provide precise measurements of Earth’s rotation, reference frames, and celestial positions.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical reference system center
ⓘ
scientific service center ⓘ |
| abbreviation | ICRS Centre ⓘ |
| affiliation |
Paris Observatory Reference Systems group
ⓘ
linked to:
Paris Observatory
|
| contributesTo | International Astronomical Union reference systems ⓘ |
| coordinatesWith |
IERS Central Bureau
ⓘ
IERS VLBI Coordinating Centre ⓘ
linked to:
IERS ICRS Centre
|
| country | France ⓘ |
| dataFormat | IERS standard formats ⓘ |
| establishedFor | implementation of the ICRS for astronomy and geodesy ⓘ |
| field |
astrometry
ⓘ
celestial reference systems ⓘ geodesy ⓘ |
| focusesOn |
extragalactic radio sources as reference objects
ⓘ
quasar-based celestial reference frames ⓘ |
| hostInstitution |
Observatoire de Paris
ⓘ
linked to:
Paris Observatory
Paris Observatory ⓘ |
| languageOfWork |
English
ⓘ
French ⓘ |
| locatedIn | Paris ⓘ |
| maintains |
ICRF
ⓘ
International Celestial Reference Frame ⓘ
linked to:
International Celestial Reference System
|
| operatesWithinFrameworkOf |
International Astronomical Union resolutions on reference systems
ⓘ
linked to:
IAU 2000 resolutions
|
| parentOrganization |
IERS
ⓘ
International Earth Rotation and Reference Systems Service ⓘ |
| partOf | International Earth Rotation and Reference Systems Service ⓘ |
| provides |
ICRF source positions
ⓘ
catalogs of extragalactic radio sources ⓘ documentation on the ICRS realization ⓘ orientation parameters of the ICRS ⓘ |
| publishes |
ICRF catalogs
ⓘ
technical notes on ICRS realization ⓘ |
| relatedToStandard |
ICRS
ⓘ
linked to:
International Celestial Reference System
International Celestial Reference System ⓘ |
| responsibleFor |
access to the International Celestial Reference System
ⓘ
maintenance of the International Celestial Reference System ⓘ realization of the International Celestial Reference System ⓘ |
| scope | global ⓘ |
| standardizes | realization of the celestial reference frame ⓘ |
| supports |
Earth orientation studies
ⓘ
precise astronomical measurements ⓘ space geodesy applications ⓘ |
| usesTechnique |
VLBI
ⓘ
linked to:
Very Long Baseline Interferometry
Very Long Baseline Interferometry ⓘ |
| website | https://iers.obspm.fr ⓘ |
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 ICRS Centre Description of subject: 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.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: IERS ICRS Centre
linked to: IERS ICRS Centre
linked to: IERS ICRS Centre