Space Launch Complex 4
E273156
Space Launch Complex 4 is a major West Coast orbital launch site used primarily for polar-orbit and sun-synchronous satellite missions.
All labels observed (7)
How this entity was disambiguated
This entity first appeared as the object of triple T2097812 — 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: Space Launch Complex 4 Context triple: [Vandenberg Space Force Base, hasLaunchComplex, Space Launch Complex 4]
-
A.
Space Launch Complex 2
Space Launch Complex 2 is a launch facility at Vandenberg Space Force Base historically used for launching small to medium-class rockets into polar and sun-synchronous orbits.
-
B.
Space Launch Complex 3
Space Launch Complex 3 is a launch facility at Vandenberg Space Force Base in California used primarily for launching Atlas and other expendable launch vehicles into polar and sun-synchronous orbits.
-
C.
Cape Canaveral Air Force Station Space Launch Complex 40
Cape Canaveral Air Force Station Space Launch Complex 40 is a major launch pad on Florida’s Space Coast used primarily by SpaceX for Falcon 9 missions to low Earth orbit and beyond.
-
D.
Cape Canaveral LC-41
Cape Canaveral LC-41 is a launch complex at Cape Canaveral Space Force Station in Florida, historically used for major NASA and interplanetary missions.
-
E.
Cape Canaveral Launch Complex 36
Cape Canaveral Launch Complex 36 is a historic Florida launch site that supported numerous NASA and commercial Atlas-Centaur rocket missions, including early planetary and communications satellite launches.
- 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: Space Launch Complex 4 Target entity description: Space Launch Complex 4 is a major West Coast orbital launch site used primarily for polar-orbit and sun-synchronous satellite missions.
-
A.
Space Launch Complex 2
Space Launch Complex 2 is a launch facility at Vandenberg Space Force Base historically used for launching small to medium-class rockets into polar and sun-synchronous orbits.
-
B.
Space Launch Complex 3
Space Launch Complex 3 is a launch facility at Vandenberg Space Force Base in California used primarily for launching Atlas and other expendable launch vehicles into polar and sun-synchronous orbits.
-
C.
Cape Canaveral Air Force Station Space Launch Complex 40
Cape Canaveral Air Force Station Space Launch Complex 40 is a major launch pad on Florida’s Space Coast used primarily by SpaceX for Falcon 9 missions to low Earth orbit and beyond.
-
D.
Cape Canaveral LC-41
Cape Canaveral LC-41 is a launch complex at Cape Canaveral Space Force Station in Florida, historically used for major NASA and interplanetary missions.
-
E.
Cape Canaveral Launch Complex 36
Cape Canaveral Launch Complex 36 is a historic Florida launch site that supported numerous NASA and commercial Atlas-Centaur rocket missions, including early planetary and communications satellite launches.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
rocket launch site
ⓘ
spaceport facility ⓘ |
| alsoKnownAs |
PALC-2
ⓘ
linked to:
SLC-2
SLC-4 ⓘ |
| coast | West Coast of the United States ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentCommercialUser |
SpaceX
ⓘ
other commercial launch providers ⓘ |
| formerlyOperatedBy | United States Air Force ⓘ |
| geographicalFeature | coastal launch complex ⓘ |
| hasPart |
Space Launch Complex 4 East
ⓘ
linked to:
Space Launch Complex 4
Space Launch Complex 4 West ⓘ
linked to:
Space Launch Complex 4
|
| hemisphere | Northern Hemisphere ⓘ |
| historicalRocketFamily |
Atlas
ⓘ
Thor ⓘ Titan ⓘ |
| historicalUser |
United States Air Force
ⓘ
United States Navy ⓘ |
| infrastructureType |
fixed launch pad
ⓘ
integration facilities ⓘ propellant storage ⓘ range safety systems ⓘ |
| launchAzimuthRange | southward trajectories over the Pacific Ocean ⓘ |
| launchDirection | southward over the Pacific Ocean ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
Santa Barbara County, California ⓘ
linked to:
Santa Barbara County
United States ⓘ
linked to:
United States of America
Vandenberg Space Force Base ⓘ |
| locatedOn | Pacific coast ⓘ |
| operatedBy | United States Space Force ⓘ |
| partOf |
Vandenberg launch range
ⓘ
linked to:
Vandenberg Space Force Base
|
| primaryMissionType | satellite launches ⓘ |
| primaryOrbitType |
polar orbit
ⓘ
sun-synchronous orbit ⓘ |
| regionRole | major West Coast orbital launch site ⓘ |
| safetyAdvantage | downrange over open ocean ⓘ |
| strategicImportance | access to high-inclination orbits ⓘ |
| supportsLaunchVehicle |
Falcon 9
ⓘ
linked to:
Falcon 9 rocket
Falcon Heavy ⓘ
linked to:
Falcon Heavy rocket
|
| supportsMissionType |
Earth observation satellites
ⓘ
reconnaissance satellites ⓘ technology demonstration missions ⓘ weather satellites ⓘ |
| usedFor |
orbital launches
ⓘ
polar orbit launches ⓘ sun-synchronous orbit launches ⓘ |
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: Space Launch Complex 4 Description of subject: Space Launch Complex 4 is a major West Coast orbital launch site used primarily for polar-orbit and sun-synchronous satellite missions.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Space Launch Complex 4
subject linked to:
NASA and SpaceX
linked to: Space Launch Complex 4
linked to: Space Launch Complex 4
linked to: Space Launch Complex 4
linked to: Space Launch Complex 4
subject linked to:
Titan rocket family
linked to: Space Launch Complex 4
subject linked to:
Titan rocket family
linked to: Space Launch Complex 4
linked to: Space Launch Complex 4
linked to: Space Launch Complex 4
linked to: Space Launch Complex 4