United States Space Surveillance Network
E672633
The United States Space Surveillance Network is a U.S. military-operated system of ground- and space-based sensors that tracks and catalogs artificial objects in Earth orbit to support space situational awareness and national security.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Space Surveillance Network | 3 |
| United States Space Surveillance Network canonical | 2 |
| Department of Defense astronomical infrastructure | 1 |
| U.S. Space Surveillance Network | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7557351 — 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: United States Space Surveillance Network Context triple: [PAVE PAWS radar site, partOf, United States Space Surveillance Network]
-
A.
Air Force Satellite Control Network
The Air Force Satellite Control Network is a global system of ground stations and facilities that provides command, control, and communications for U.S. military and national security satellites.
-
B.
Space Fence space surveillance system
The Space Fence space surveillance system is a U.S. Air Force-operated, Lockheed Martin–built radar network designed to track and catalog objects in Earth orbit with unprecedented precision.
-
C.
Joint Space Operations Center
The Joint Space Operations Center is a U.S. military command facility responsible for tracking objects in space and coordinating space operations to ensure space situational awareness and mission support.
-
D.
Space-Based Infrared System
The Space-Based Infrared System (SBIRS) is a U.S. military satellite constellation designed to provide global missile launch detection, missile defense support, and strategic infrared surveillance.
-
E.
Diego Garcia Tracking Station
Diego Garcia Tracking Station is a U.S. military satellite tracking and communications facility located on Diego Garcia in the Indian Ocean, supporting space operations and satellite control.
- 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: United States Space Surveillance Network Target entity description: The United States Space Surveillance Network is a U.S. military-operated system of ground- and space-based sensors that tracks and catalogs artificial objects in Earth orbit to support space situational awareness and national security.
-
A.
Air Force Satellite Control Network
The Air Force Satellite Control Network is a global system of ground stations and facilities that provides command, control, and communications for U.S. military and national security satellites.
-
B.
Space Fence space surveillance system
The Space Fence space surveillance system is a U.S. Air Force-operated, Lockheed Martin–built radar network designed to track and catalog objects in Earth orbit with unprecedented precision.
-
C.
Joint Space Operations Center
The Joint Space Operations Center is a U.S. military command facility responsible for tracking objects in space and coordinating space operations to ensure space situational awareness and mission support.
-
D.
Space-Based Infrared System
The Space-Based Infrared System (SBIRS) is a U.S. military satellite constellation designed to provide global missile launch detection, missile defense support, and strategic infrared surveillance.
-
E.
Diego Garcia Tracking Station
Diego Garcia Tracking Station is a U.S. military satellite tracking and communications facility located on Diego Garcia in the Indian Ocean, supporting space operations and satellite control.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
United States military program
ⓘ
space surveillance system ⓘ |
| administeredBy | Space Delta 2 NERFINISHED ⓘ |
| alsoKnownAs |
SSN
NERFINISHED
ⓘ
US Space Surveillance Network NERFINISHED ⓘ |
| collects |
optical signature data
ⓘ
orbital element data ⓘ radar cross-section data ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| dataSharedWith |
civil space agencies
ⓘ
commercial satellite operators ⓘ international partners ⓘ |
| dataUsedBy |
United States Space Command
NERFINISHED
ⓘ
United States Space Force Space Operations Command NERFINISHED ⓘ United States Strategic Command NERFINISHED ⓘ |
| domain | space operations ⓘ |
| hasComponent |
Cavalier radar site
NERFINISHED
ⓘ
Eglin radar site NERFINISHED ⓘ Ground-based Electro-Optical Deep Space Surveillance system NERFINISHED ⓘ Maui Space Surveillance Complex NERFINISHED ⓘ Millstone Hill radar NERFINISHED ⓘ Space Fence radar system NERFINISHED ⓘ |
| maintains | space object catalog ⓘ |
| monitors |
Earth orbit
ⓘ
artificial Earth satellites ⓘ space debris ⓘ spent rocket bodies ⓘ |
| operator |
United States Department of Defense
NERFINISHED
ⓘ
United States Space Force NERFINISHED ⓘ |
| originCountry | United States of America NERFINISHED ⓘ |
| partOf | United States space situational awareness architecture ⓘ |
| purpose |
maintaining a catalog of space objects
ⓘ
national security ⓘ space situational awareness ⓘ tracking artificial objects in Earth orbit ⓘ |
| sector | defense ⓘ |
| supports |
collision avoidance
ⓘ
missile warning and defense missions ⓘ satellite conjunction assessment ⓘ space traffic management activities ⓘ |
| supportsProduct |
Two-Line Element sets
ⓘ
conjunction data messages ⓘ |
| tracksOrbitRegime |
geosynchronous orbit
ⓘ
highly elliptical orbit ⓘ low Earth orbit ⓘ medium Earth orbit ⓘ |
| usesSensorType |
ground-based optical telescope
ⓘ
ground-based radar ⓘ space-based sensor ⓘ |
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: United States Space Surveillance Network Description of subject: The United States Space Surveillance Network is a U.S. military-operated system of ground- and space-based sensors that tracks and catalogs artificial objects in Earth orbit to support space situational awareness and national security.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Space Surveillance Network
this entity surface form:
U.S. Space Surveillance Network
United States Naval Observatory Flagstaff Station
→
partOf
→
United States Space Surveillance Network
ⓘ
this entity surface form:
Department of Defense astronomical infrastructure
subject surface form:
Sapphire
this entity surface form:
Space Surveillance Network
this entity surface form:
Space Surveillance Network