GPS space segment
E528516
The GPS space segment is the constellation of orbiting satellites that continuously transmit precise timing and positioning signals to users on and near Earth.
All labels observed (4)
| Label | Occurrences |
|---|---|
| GPS Block IIF satellites | 1 |
| GPS Block III satellites | 1 |
| GPS Block IIR-M satellites | 1 |
| GPS space segment canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5523595 — 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: GPS space segment Context triple: [IS-GPS-800, appliesTo, GPS space segment]
-
A.
Global Navigation Satellite System Infrastructure
Global Navigation Satellite System Infrastructure is the worldwide network of satellites, ground stations, and control systems that enables precise positioning, navigation, and timing services for users across the globe.
-
B.
GLONASS
GLONASS is Russia’s global satellite navigation system, providing worldwide positioning and timing services as an alternative to GPS.
-
C.
Tracking and Data Relay Satellite-B
Tracking and Data Relay Satellite-B was a NASA communications satellite intended to relay data between spacecraft in low Earth orbit and ground stations as part of the Tracking and Data Relay Satellite System (TDRSS).
-
D.
NavIC satellites
NavIC satellites are a constellation of Indian regional navigation spacecraft that provide accurate position, navigation, and timing services over India and surrounding areas.
-
E.
Argos satellite system
The Argos satellite system is a global satellite-based data collection and location system used to relay environmental and oceanographic measurements from remote platforms such as Argo floats to data centers.
- 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: GPS space segment Target entity description: The GPS space segment is the constellation of orbiting satellites that continuously transmit precise timing and positioning signals to users on and near Earth.
-
A.
Global Navigation Satellite System Infrastructure
Global Navigation Satellite System Infrastructure is the worldwide network of satellites, ground stations, and control systems that enables precise positioning, navigation, and timing services for users across the globe.
-
B.
GLONASS
GLONASS is Russia’s global satellite navigation system, providing worldwide positioning and timing services as an alternative to GPS.
-
C.
Tracking and Data Relay Satellite-B
Tracking and Data Relay Satellite-B was a NASA communications satellite intended to relay data between spacecraft in low Earth orbit and ground stations as part of the Tracking and Data Relay Satellite System (TDRSS).
-
D.
NavIC satellites
NavIC satellites are a constellation of Indian regional navigation spacecraft that provide accurate position, navigation, and timing services over India and surrounding areas.
-
E.
Argos satellite system
The Argos satellite system is a global satellite-based data collection and location system used to relay environmental and oceanographic measurements from remote platforms such as Argo floats to data centers.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
component of Global Positioning System
ⓘ
satellite constellation ⓘ |
| alsoKnownAs | GPS satellite constellation NERFINISHED ⓘ |
| broadcasts |
almanac data
ⓘ
navigation message ⓘ satellite clock data ⓘ satellite ephemeris data ⓘ |
| consistsOf | GPS satellites ⓘ |
| controlledFrom | GPS control segment NERFINISHED ⓘ |
| covers |
global Earth surface
ⓘ
near-Earth space ⓘ |
| designedFor | continuous global coverage ⓘ |
| developedBy | United States Department of Defense NERFINISHED ⓘ |
| ensures | at least four satellites in view from most points on Earth ⓘ |
| hasComponent |
operational GPS satellites
ⓘ
spare GPS satellites ⓘ |
| hasNominalSize | 24 satellites ⓘ |
| hasOrbitalAltitude | about 20,200 kilometers ⓘ |
| hasOrbitalInclination | about 55 degrees ⓘ |
| hasOrbitalPeriod | about 12 hours sidereal ⓘ |
| hasOrbitalPlaneCount | 6 orbital planes ⓘ |
| hasOrbitType | medium Earth orbit ⓘ |
| hasTypicalSize | 24 to 32 satellites ⓘ |
| includesGeneration |
Block IIF satellites
ⓘ
Block IIR satellites ⓘ Block IIR-M satellites NERFINISHED ⓘ GPS III satellites NERFINISHED ⓘ |
| initialDeploymentStart | late 1970s ⓘ |
| operatedBy | United States Space Force NERFINISHED ⓘ |
| operatedFor | United States Space Force Space Operations Command NERFINISHED ⓘ |
| partOf | Global Positioning System NERFINISHED ⓘ |
| primaryFunction | provide precise positioning, navigation, and timing to users ⓘ |
| provides |
navigation signals
ⓘ
positioning signals ⓘ timing signals ⓘ |
| reachedFullOperationalCapability | 1995 ⓘ |
| servesUsers |
aviation navigation users
ⓘ
civilian users worldwide ⓘ land navigation users ⓘ maritime navigation users ⓘ military users worldwide ⓘ |
| supportsService |
Precise Positioning Service
NERFINISHED
ⓘ
Standard Positioning Service NERFINISHED ⓘ civil GPS service ⓘ military GPS service ⓘ |
| transmitsOn |
L1 frequency
ⓘ
L2 frequency ⓘ L5 frequency ⓘ |
| usesReferenceFrame | WGS 84 NERFINISHED ⓘ |
| usesTimeStandard | GPS Time NERFINISHED ⓘ |
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: GPS space segment Description of subject: The GPS space segment is the constellation of orbiting satellites that continuously transmit precise timing and positioning signals to users on and near Earth.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
GPS Block IIR-M satellites
this entity surface form:
GPS Block IIF satellites
this entity surface form:
GPS Block III satellites