SYRTE (Time-Space Reference Systems)

E742070

French research laboratory research unit

SYRTE (Time-Space Reference Systems) is a French research unit specializing in high-precision timekeeping, frequency standards, and reference systems for astronomy and geodesy.

Try in SPARQL Jump to: Surface forms Disambiguation Statements Elicitation Referenced by

All labels observed (3)

Label	Occurrences
SYRTE (Systèmes de Référence Temps-Espace)	1
SYRTE (Time-Space Reference Systems) canonical	1
Systèmes de Référence Temps-Espace	1

How this entity was disambiguated

This entity first appeared as the object of triple T8555703 — 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: SYRTE (Time-Space Reference Systems)
Context triple: [Paris Observatory, hasResearchUnit, SYRTE (Time-Space Reference Systems)]

A. International Terrestrial Reference System
The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.
B. 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.
C. Barycentric Dynamical Time
Barycentric Dynamical Time is a relativistic time scale used in celestial mechanics and ephemerides, defined for an observer at the solar system’s barycenter to accurately model planetary and spacecraft motions.
D. National Spatial Reference System
The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
E. ISO 19111 for coordinate reference systems
ISO 19111 for coordinate reference systems is an international standard that defines the conceptual schema and rules for describing, managing, and transforming spatial and temporal coordinate reference systems.
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: SYRTE (Time-Space Reference Systems)
Target entity description: SYRTE (Time-Space Reference Systems) is a French research unit specializing in high-precision timekeeping, frequency standards, and reference systems for astronomy and geodesy.

A. International Terrestrial Reference System
The International Terrestrial Reference System is a globally standardized, Earth-centered coordinate framework used for precise positioning, navigation, and geodetic measurements.
B. 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.
C. Barycentric Dynamical Time
Barycentric Dynamical Time is a relativistic time scale used in celestial mechanics and ephemerides, defined for an observer at the solar system’s barycenter to accurately model planetary and spacecraft motions.
D. National Spatial Reference System
The National Spatial Reference System is the official coordinate framework used in the United States to define precise locations, elevations, and boundaries for mapping, surveying, and navigation.
E. ISO 19111 for coordinate reference systems
ISO 19111 for coordinate reference systems is an international standard that defines the conceptual schema and rules for describing, managing, and transforming spatial and temporal coordinate reference systems.
F. None of above. chosen

Statements (41)

Predicate	Object
instanceOf	French research laboratory ⓘ research unit ⓘ
acronym	SYRTE ⓘ
affiliation	CNRS ⓘ linked to: Centre National de la Recherche Scientifique Centre National de la Recherche Scientifique ⓘ Observatoire de Paris ⓘ linked to: Paris Observatory Sorbonne Université ⓘ linked to: Sorbonne University Université PSL ⓘ linked to: Université Paris Sciences et Lettres (PSL University)
city	Paris ⓘ
contributesTo	Coordinated Universal Time ⓘ International Atomic Time ⓘ TAI ⓘ UTC ⓘ
country	France ⓘ
fieldOfWork	astronomy ⓘ frequency standards ⓘ geodesy ⓘ time-space reference systems ⓘ timekeeping ⓘ
fullName	Systèmes de Référence Temps-Espace ⓘ linked to: SYRTE (Time-Space Reference Systems)
languageOfWork	English ⓘ French ⓘ
locatedIn	Observatoire de Paris ⓘ linked to: Paris Observatory Paris ⓘ
researchArea	GNSS time and frequency applications ⓘ fundamental physics tests with clocks ⓘ navigation and positioning systems ⓘ relativistic geodesy ⓘ
specializesIn	atomic clocks ⓘ geodetic reference systems ⓘ high-precision timekeeping ⓘ optical frequency standards ⓘ reference frames for astronomy ⓘ time and frequency metrology ⓘ
uses	atomic fountain clocks ⓘ optical lattice clocks ⓘ
worksOn	UTC realization ⓘ international time scales ⓘ relativistic modeling of reference systems ⓘ satellite geodesy reference frames ⓘ time transfer techniques ⓘ

How these facts were elicited

Referenced by (3)

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

Paris Observatory → hasResearchUnit → SYRTE (Time-Space Reference Systems) ⓘ

SYRTE → fullName → Systèmes de Référence Temps-Espace ⓘ

subject linked to: SYRTE (Time-Space Reference Systems)

linked to: SYRTE (Time-Space Reference Systems)

IERS Central Bureau → hostInstitution → SYRTE (Systèmes de Référence Temps-Espace) ⓘ