Global Positioning System satellites

E722101

artificial satellite system navigation satellite constellation

Global Positioning System satellites are a constellation of Earth-orbiting spacecraft that provide precise positioning, navigation, and timing services worldwide.

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All labels observed (7)

Label	Occurrences
GPS III satellites	3
Global Positioning System satellites canonical	2
GPS IIF satellites	1
GPS III satellite series	1
GPS satellite constellation	1
Global Positioning System	1
Navstar GPS satellites	1

How this entity was disambiguated

This entity first appeared as the object of triple T8264598 — 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: Global Positioning System satellites
Context triple: [Delta II, notablePayload, Global Positioning System satellites]

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. 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.
C. Galileo satellite navigation system
The Galileo satellite navigation system is the European Union’s global navigation satellite system designed to provide highly accurate positioning and timing services worldwide as an independent alternative to GPS and other GNSS constellations.
D. Iridium satellite system
The Iridium satellite system is a global network of low Earth orbit communication satellites that provides worldwide voice and data coverage, including for remote sensing platforms like Argo floats.
E. Satellite-Based Augmentation Systems
Satellite-Based Augmentation Systems are regional or wide-area systems that enhance standard GPS signals to provide more accurate, reliable, and integrity-checked positioning for aviation and other safety-critical applications.
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: Global Positioning System satellites
Target entity description: Global Positioning System satellites are a constellation of Earth-orbiting spacecraft that provide precise positioning, navigation, and timing services worldwide.

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. 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.
C. Galileo satellite navigation system
The Galileo satellite navigation system is the European Union’s global navigation satellite system designed to provide highly accurate positioning and timing services worldwide as an independent alternative to GPS and other GNSS constellations.
D. Iridium satellite system
The Iridium satellite system is a global network of low Earth orbit communication satellites that provides worldwide voice and data coverage, including for remote sensing platforms like Argo floats.
E. Satellite-Based Augmentation Systems
Satellite-Based Augmentation Systems are regional or wide-area systems that enhance standard GPS signals to provide more accurate, reliable, and integrity-checked positioning for aviation and other safety-critical applications.
F. None of above. chosen

Statements (79)

Predicate	Object
instanceOf	artificial satellite system ⓘ navigation satellite constellation ⓘ
atomicClockType	cesium atomic clock ⓘ linked to: cesium atomic clocks rubidium atomic clock ⓘ
carryPayload	atomic clocks ⓘ
competesWith	BeiDou ⓘ GLONASS ⓘ Galileo ⓘ
controlSegment	GPS Operational Control Segment ⓘ linked to: GPS control segment
coordinateSystem	WGS 84 ⓘ linked to: WGS84
countryOfOrigin	United States ⓘ linked to: United States of America
coverageArea	global ⓘ
designedLifetime	15 years or more for GPS III ⓘ about 12 years for later blocks ⓘ about 7.5 years for early blocks ⓘ
enableTechnology	GNSS receivers ⓘ satellite-based navigation receivers ⓘ smartphone GPS ⓘ
firstLaunchDate	1978 ⓘ
frequencyBandUsed	L1 ⓘ L2 ⓘ L5 ⓘ
globalSystemType	Global Navigation Satellite System ⓘ linked to: Global Navigation Satellite Systems
groundControlLocation	Schriever Space Force Base ⓘ
inclination	approximately 55 degrees ⓘ
initialBlock	Block I ⓘ
launchVehicle	Atlas V ⓘ Delta II ⓘ Falcon 9 ⓘ linked to: Falcon 9 rocket
maintainedBy	Space Delta 8 ⓘ
minimumOperationalConstellationSize	24 ⓘ
navigationMessageType	almanac data ⓘ clock correction data ⓘ ephemeris data ⓘ
numberOfOrbitalPlanes	6 ⓘ
operator	Space Operations Command ⓘ United States Space Force ⓘ
orbitalAltitude	approximately 20200 kilometers ⓘ approximately 20200 km above Earth ⓘ
orbitalPeriod	approximately 12 hours ⓘ
orbitShape	nearly circular orbit ⓘ
orbitType	medium Earth orbit ⓘ
partOf	Global Positioning System ⓘ linked to: GPS
powerSource	rechargeable batteries ⓘ solar panels ⓘ
primaryUse	global navigation ⓘ navigation ⓘ positioning ⓘ timing ⓘ
provideAccuracy	higher accuracy for authorized military users ⓘ meter-level accuracy for civilian users ⓘ
provideService	PNT services ⓘ Positioning, Navigation, and Timing ⓘ Precise Positioning Service ⓘ Standard Positioning Service ⓘ
provideTimeReference	Coordinated Universal Time ⓘ
satelliteGeneration	Block I ⓘ Block II ⓘ Block IIA ⓘ Block IIF ⓘ Block IIR ⓘ Block IIR-M ⓘ linked to: Block IIR-M satellites GPS III ⓘ linked to: GPS
satellitesPerOrbitalPlane	at least 4 ⓘ
signalModulation	CDMA ⓘ
signalType	spread-spectrum radio signal ⓘ
timeStandard	GPS Time ⓘ
typicalConstellationSize	around 31 active satellites ⓘ
usedFor	aviation navigation ⓘ civilian navigation ⓘ financial transaction time-stamping ⓘ geodesy ⓘ land navigation ⓘ maritime navigation ⓘ military navigation ⓘ power grid synchronization ⓘ precision agriculture ⓘ surveying ⓘ telecommunications timing ⓘ

How these facts were elicited

Referenced by (10)

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

Delta II → notablePayload → Global Positioning System satellites ⓘ

subject linked to: Delta rocket

Lockheed Martin Space → notableProject → GPS III satellites ⓘ