SYRTE (Time-Space Reference Systems)
E742070
SYRTE (Time-Space Reference Systems) is a French research unit specializing in high-precision timekeeping, frequency standards, and reference systems for astronomy and geodesy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| SYRTE (Time-Space Reference Systems) canonical | 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 NERFINISHED ⓘ |
| affiliation |
CNRS
NERFINISHED
ⓘ
Centre National de la Recherche Scientifique NERFINISHED ⓘ Observatoire de Paris NERFINISHED ⓘ Sorbonne Université NERFINISHED ⓘ Université PSL NERFINISHED ⓘ |
| city | Paris ⓘ |
| contributesTo |
Coordinated Universal Time
NERFINISHED
ⓘ
International Atomic Time NERFINISHED ⓘ TAI NERFINISHED ⓘ UTC NERFINISHED ⓘ |
| country | France ⓘ |
| fieldOfWork |
astronomy
ⓘ
frequency standards ⓘ geodesy ⓘ time-space reference systems ⓘ timekeeping ⓘ |
| fullName | Systèmes de Référence Temps-Espace NERFINISHED ⓘ |
| languageOfWork |
English
ⓘ
French ⓘ |
| locatedIn |
Observatoire de Paris
NERFINISHED
ⓘ
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
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: SYRTE (Time-Space Reference Systems) Description of subject: SYRTE (Time-Space Reference Systems) is a French research unit specializing in high-precision timekeeping, frequency standards, and reference systems for astronomy and geodesy.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.