Agena Target Vehicle
E200646
The Agena Target Vehicle was an unmanned spacecraft used during NASA's Gemini program to practice rendezvous and docking maneuvers in Earth orbit.
All labels observed (7)
| Label | Occurrences |
|---|---|
| Agena Target Vehicle GATV-10 | 3 |
| Agena Target Vehicle canonical | 2 |
| Agena target vehicle | 2 |
| Agena Target Vehicle GATV-12 | 1 |
| Agena Target Vehicle GATV-8 | 1 |
| Agena family | 1 |
| Gemini Agena Target Vehicle 8 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1806889 — 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: Agena Target Vehicle Context triple: [Gemini 8, dockingTarget, Agena Target Vehicle]
-
A.
ATV spacecraft
The ATV spacecraft was an automated European cargo vehicle designed to resupply and reboost the International Space Station.
-
B.
Orbital Test Vehicle
The Orbital Test Vehicle is an unmanned, reusable spaceplane developed for the U.S. Air Force and Space Force to conduct long-duration, classified orbital missions and technology demonstrations.
-
C.
LC-39A
LC-39A is a historic launch pad at NASA’s Kennedy Space Center in Florida, used for Apollo Moon missions, Space Shuttle flights, and later commercial launches including SpaceX Falcon rockets.
-
D.
LC-39B
LC-39B is a launch pad at NASA’s Kennedy Space Center that has supported major crewed and uncrewed space missions, including Space Shuttle flights and later Space Launch System operations.
-
E.
Spartan-Halley free-flyer
Spartan-Halley free-flyer was an autonomous, reusable NASA spacecraft designed to study Halley’s Comet by conducting short-duration, targeted observations while deployed from and later retrieved by the Space Shuttle.
- 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: Agena Target Vehicle Target entity description: The Agena Target Vehicle was an unmanned spacecraft used during NASA's Gemini program to practice rendezvous and docking maneuvers in Earth orbit.
-
A.
ATV spacecraft
The ATV spacecraft was an automated European cargo vehicle designed to resupply and reboost the International Space Station.
-
B.
Orbital Test Vehicle
The Orbital Test Vehicle is an unmanned, reusable spaceplane developed for the U.S. Air Force and Space Force to conduct long-duration, classified orbital missions and technology demonstrations.
-
C.
LC-39A
LC-39A is a historic launch pad at NASA’s Kennedy Space Center in Florida, used for Apollo Moon missions, Space Shuttle flights, and later commercial launches including SpaceX Falcon rockets.
-
D.
LC-39B
LC-39B is a launch pad at NASA’s Kennedy Space Center that has supported major crewed and uncrewed space missions, including Space Shuttle flights and later Space Launch System operations.
-
E.
Spartan-Halley free-flyer
Spartan-Halley free-flyer was an autonomous, reusable NASA spacecraft designed to study Halley’s Comet by conducting short-duration, targeted observations while deployed from and later retrieved by the Space Shuttle.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
spacecraft
ⓘ
target vehicle ⓘ uncrewed spacecraft ⓘ upper stage derivative ⓘ |
| control |
ground-commanded
ⓘ
onboard guidance-controlled ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| developedFrom | Lockheed Agena upper stage ⓘ |
| era | 1960s ⓘ |
| firstSuccessfulDockingDate | 1966-03-16 ⓘ |
| firstSuccessfulDockingWith |
Gemini 8
ⓘ
surface form:
Gemini 8 spacecraft
|
| followedBy | Apollo docking targets ⓘ |
| hasCapability |
attitude control
ⓘ
orbit change maneuvers ⓘ serving as docking target ⓘ |
| hasComponent |
attitude control system
ⓘ
docking adapter ⓘ guidance system ⓘ propulsion system ⓘ |
| launchVehicle |
Atlas rocket
ⓘ
Atlas-Agena ⓘ |
| manufacturer |
Lockheed Aircraft Company
ⓘ
surface form:
Lockheed
|
| missionProfile | launched before crewed Gemini spacecraft for rendezvous ⓘ |
| missionType | rendezvous and docking target ⓘ |
| notableEvent | first docking of two crewed-orbital-operations-capable spacecraft with Gemini 8 ⓘ |
| operator | NASA ⓘ |
| orbit | low Earth orbit ⓘ |
| partOf |
Gemini program
ⓘ
surface form:
Gemini rendezvous and docking program
|
| powerSource | batteries ⓘ |
| precededBy | earlier Agena upper stage variants ⓘ |
| program | Project Gemini ⓘ |
| propellantType | hypergolic propellants ⓘ |
| spaceAgency |
NASA
ⓘ
surface form:
National Aeronautics and Space Administration
|
| status | retired ⓘ |
| usedByProgram | Gemini program ⓘ |
| usedFor |
docking practice
ⓘ
orbital maneuvers training ⓘ rendezvous practice ⓘ testing high-apogee orbits with Gemini 11 ⓘ testing tethered operations with Gemini 11 ⓘ |
| usedForTesting | rendezvous techniques later used in Apollo program ⓘ |
| usedOnMission |
Gemini 10
ⓘ
Gemini 11 ⓘ Gemini 12 ⓘ Gemini 6A ⓘ Gemini 8 ⓘ Gemini 9A ⓘ |
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: Agena Target Vehicle Description of subject: The Agena Target Vehicle was an unmanned spacecraft used during NASA's Gemini program to practice rendezvous and docking maneuvers in Earth orbit.
Referenced by (11)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Gemini Agena Target Vehicle 8
this entity surface form:
Agena Target Vehicle GATV-12
this entity surface form:
Agena target vehicle
this entity surface form:
Agena target vehicle
this entity surface form:
Agena family
this entity surface form:
Agena Target Vehicle GATV-10
this entity surface form:
Agena Target Vehicle GATV-10
this entity surface form:
Agena Target Vehicle GATV-8
this entity surface form:
Agena Target Vehicle GATV-10