ALTAIR radar

E185849

phased-array radar radar system space surveillance sensor surveillance radar tracking radar

ALTAIR radar is a powerful tracking and surveillance radar system located on Kwajalein Atoll, used primarily for space object tracking and missile defense research.

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

All labels observed (2)

Label	Occurrences
ALTAIR radar canonical	2
ARPA Long-Range Tracking and Instrumentation Radar (ALTAIR)	1

How this entity was disambiguated

This entity first appeared as the object of triple T1651677 — 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: ALTAIR radar
Context triple: [Kwajalein Atoll, hasRadar, ALTAIR radar]

A. AN/MPQ-65 radar
The AN/MPQ-65 radar is an advanced multifunction phased-array radar used in later variants of the Patriot air and missile defense system, providing improved target detection, tracking, and engagement capabilities over its predecessor.
B. AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
C. APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
D. Aegis radar components
Aegis radar components are advanced naval radar and combat system elements designed to detect, track, and guide weapons against multiple airborne and missile threats as part of the Aegis Combat System.
E. AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
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: ALTAIR radar
Target entity description: ALTAIR radar is a powerful tracking and surveillance radar system located on Kwajalein Atoll, used primarily for space object tracking and missile defense research.

A. AN/MPQ-65 radar
The AN/MPQ-65 radar is an advanced multifunction phased-array radar used in later variants of the Patriot air and missile defense system, providing improved target detection, tracking, and engagement capabilities over its predecessor.
B. AN/MPQ-53 radar
The AN/MPQ-53 is a multifunction, phased-array fire control radar used to detect, track, and guide interceptors against aircraft and missile threats in the Patriot air defense system.
C. APY-10 multi-mission surface search radar
The APY-10 multi-mission surface search radar is an advanced maritime surveillance and targeting radar system used on platforms like the Boeing P-8 Poseidon for detecting, tracking, and classifying surface and subsurface contacts in all weather conditions.
D. Aegis radar components
Aegis radar components are advanced naval radar and combat system elements designed to detect, track, and guide weapons against multiple airborne and missile threats as part of the Aegis Combat System.
E. AN/TPY-2 radar
The AN/TPY-2 radar is a high-resolution, X-band, phased-array missile defense radar used for detecting, tracking, and discriminating ballistic missile threats.
F. None of above. chosen

Statements (41)

Predicate	Object
instanceOf	phased-array radar ⓘ radar system ⓘ space surveillance sensor ⓘ surveillance radar ⓘ tracking radar ⓘ
contributesTo	space situational awareness ⓘ
dataUsedBy	United States Armed Forces ⓘ surface form: U.S. military space surveillance analysts ⓘ
environment	island-based radar installation ⓘ
hasAntennaType	phased-array antenna ⓘ
hasCapability	high-precision tracking ⓘ high-sensitivity detection ⓘ long-range tracking ⓘ wideband radar measurements ⓘ
hasFrequencyBand	UHF band ⓘ VHF band ⓘ
hasRole	strategic space surveillance asset ⓘ test range instrumentation sensor ⓘ
isPartOf	United States Space Surveillance Network ⓘ surface form: U.S. Space Surveillance Network
locatedIn	Kwajalein Atoll ⓘ Marshall Islands ⓘ surface form: Republic of the Marshall Islands
locatedOn	Kwajalein Atoll ⓘ surface form: Omelek Island region of Kwajalein Atoll
monitors	Earth-orbiting objects ⓘ ballistic missile test flights ⓘ
operatedBy	United States Army Space and Missile Defense Command ⓘ surface form: U.S. Army Space and Missile Defense Command Department of Defense ⓘ surface form: United States Department of Defense
ownedBy	United States government ⓘ
partOf	Ronald Reagan Ballistic Missile Defense Test Site ⓘ
primaryMission	space object tracking ⓘ
secondaryMission	missile defense testing ⓘ
supports	ballistic missile defense experiments ⓘ calibration of other sensors ⓘ radar phenomenology research ⓘ sensor characterization ⓘ
usedFor	ballistic missile tracking ⓘ missile defense research ⓘ near-Earth object tracking ⓘ radar signature measurements ⓘ satellite tracking ⓘ space object tracking ⓘ space surveillance ⓘ

How these facts were elicited

Referenced by (3)

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

Kwajalein Atoll → hasRadar → ALTAIR radar ⓘ

U.S. Army Kwajalein Atoll (USAKA) missile range → hasRadar → ALTAIR radar ⓘ

subject surface form: U.S. Army Kwajalein Atoll