SLC-4
E929994
SLC-4 is a launch facility at Vandenberg Space Force Base in California historically used for Titan rockets and now for SpaceX Falcon 9 and Falcon Heavy missions.
All labels observed (3)
How this entity was disambiguated
This entity first appeared as the object of triple T11520831 — 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: SLC-4 Context triple: [Space Launch Complex 4, alsoKnownAs, SLC-4]
-
A.
SLC-41
SLC-41 is a launch complex at Cape Canaveral Space Force Station in Florida used primarily for United Launch Alliance Atlas V rocket missions, including NASA and commercial spacecraft launches.
-
B.
SLC-2
SLC-2 is a launch facility at Vandenberg Space Force Base in California historically used for launching various orbital rockets, including Delta family vehicles, into polar and sun-synchronous orbits.
-
C.
SLC-3
SLC-3 is a launch complex at Vandenberg Space Force Base in California used primarily for launching Atlas and previously Titan rockets into polar and sun-synchronous orbits.
-
D.
SL4
SL4 is a branch of Boston’s MBTA Silver Line bus rapid transit service that runs between downtown and the Seaport/South Station area.
-
E.
SLCDA
SLCDA is the municipal agency responsible for operating and managing Salt Lake City’s airport system, including Salt Lake City International Airport.
- 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: SLC-4 Target entity description: SLC-4 is a launch facility at Vandenberg Space Force Base in California historically used for Titan rockets and now for SpaceX Falcon 9 and Falcon Heavy missions.
-
A.
SLC-41
SLC-41 is a launch complex at Cape Canaveral Space Force Station in Florida used primarily for United Launch Alliance Atlas V rocket missions, including NASA and commercial spacecraft launches.
-
B.
SLC-2
SLC-2 is a launch facility at Vandenberg Space Force Base in California historically used for launching various orbital rockets, including Delta family vehicles, into polar and sun-synchronous orbits.
-
C.
SLC-3
SLC-3 is a launch complex at Vandenberg Space Force Base in California used primarily for launching Atlas and previously Titan rockets into polar and sun-synchronous orbits.
-
D.
SL4
SL4 is a branch of Boston’s MBTA Silver Line bus rapid transit service that runs between downtown and the Seaport/South Station area.
-
E.
SLCDA
SLCDA is the municipal agency responsible for operating and managing Salt Lake City’s airport system, including Salt Lake City International Airport.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
launch complex
ⓘ
launch pad ⓘ launch pad ⓘ space launch facility ⓘ |
| associatedWith |
NASA
ⓘ
National Reconnaissance Office ⓘ SpaceX ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| currentlyUsedFor |
Falcon 9 launches
ⓘ
Falcon 9 launches ⓘ Falcon Heavy launches ⓘ |
| formerlyOperatedBy | United States Air Force ⓘ |
| hasInfrastructure |
integration facilities
ⓘ
launch control center ⓘ propellant storage ⓘ transporter-erector system ⓘ |
| hasSubcomponent |
SLC-4E
ⓘ
linked to:
SLC-4
SLC-4W ⓘ
linked to:
SLC-4
|
| historicallyUsedFor |
Titan 34D launches
ⓘ
Titan II launches ⓘ Titan II launches ⓘ Titan III launches ⓘ Titan IIID launches ⓘ Titan IV launches ⓘ Titan IV launches ⓘ Titan rocket launches ⓘ |
| launchAzimuthRange | southward over Pacific Ocean ⓘ |
| launchProvider |
SpaceX
ⓘ
SpaceX ⓘ |
| locatedIn |
California
ⓘ
linked to:
California, United States
United States ⓘ
linked to:
United States of America
Vandenberg Space Force Base ⓘ Vandenberg Space Force Base ⓘ Vandenberg Space Force Base ⓘ |
| operator | United States Space Force ⓘ |
| partOf |
SLC-4
ⓘ
SLC-4 ⓘ |
| primaryMissionTypes |
Earth observation missions
ⓘ
commercial payloads ⓘ military payloads ⓘ technology demonstration missions ⓘ |
| status |
active
ⓘ
inactive ⓘ |
| supports |
autonomous flight safety systems
ⓘ
reusable launch vehicle operations ⓘ |
| 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: SLC-4 Description of subject: SLC-4 is a launch facility at Vandenberg Space Force Base in California historically used for Titan rockets and now for SpaceX Falcon 9 and Falcon Heavy missions.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: SLC-4
linked to: SLC-4