Gemini 9
E761335
Gemini 9 was a 1966 NASA crewed spaceflight in the Gemini program that tested rendezvous, docking, and spacewalk procedures in preparation for the Apollo lunar missions.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Gemini 9 canonical | 3 |
| Gemini 9 mission training | 1 |
| Gemini 9 prime crew commander | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T8739569 — 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: Gemini 9 Context triple: [Gemini 9A, isFollowUpTo, Gemini 9]
-
A.
Gemini 7
Gemini 7 was a 1965 NASA crewed spacecraft mission that conducted a long-duration 14-day flight to study the effects of space travel on the human body and served as the passive target for the first crewed space rendezvous with Gemini 6A.
-
B.
Gemini 6A
Gemini 6A was a 1965 NASA crewed spaceflight that achieved the first successful rendezvous between two orbiting spacecraft during the Gemini program.
-
C.
Gemini 8
Gemini 8 was a 1966 NASA crewed spaceflight in the Gemini program, notable for achieving the first successful docking of two spacecraft in orbit and for a critical in-flight emergency that tested astronaut Neil Armstrong’s piloting skills.
-
D.
Gemini 5
Gemini 5 was a 1965 NASA crewed spaceflight that set a then-record for longest human space mission, demonstrating key endurance and rendezvous technologies for the Apollo program.
-
E.
Gemini 10
Gemini 10 was a 1966 NASA crewed spaceflight in the Gemini program that conducted rendezvous, docking, and spacewalk experiments as a precursor to the Apollo lunar missions.
- 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: Gemini 9 Target entity description: Gemini 9 was a 1966 NASA crewed spaceflight in the Gemini program that tested rendezvous, docking, and spacewalk procedures in preparation for the Apollo lunar missions.
-
A.
Gemini 7
Gemini 7 was a 1965 NASA crewed spacecraft mission that conducted a long-duration 14-day flight to study the effects of space travel on the human body and served as the passive target for the first crewed space rendezvous with Gemini 6A.
-
B.
Gemini 6A
Gemini 6A was a 1965 NASA crewed spaceflight that achieved the first successful rendezvous between two orbiting spacecraft during the Gemini program.
-
C.
Gemini 8
Gemini 8 was a 1966 NASA crewed spaceflight in the Gemini program, notable for achieving the first successful docking of two spacecraft in orbit and for a critical in-flight emergency that tested astronaut Neil Armstrong’s piloting skills.
-
D.
Gemini 5
Gemini 5 was a 1965 NASA crewed spaceflight that set a then-record for longest human space mission, demonstrating key endurance and rendezvous technologies for the Apollo program.
-
E.
Gemini 10
Gemini 10 was a 1966 NASA crewed spaceflight in the Gemini program that conducted rendezvous, docking, and spacewalk experiments as a precursor to the Apollo lunar missions.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
NASA space mission
ⓘ
crewed spaceflight ⓘ |
| apoapsis | approximately 169 km ⓘ |
| backupCommander |
James A. Lovell Jr.
ⓘ
linked to:
Jim Lovell
|
| backupPilot | Buzz Aldrin ⓘ |
| callSign | Agnar ⓘ |
| commander |
Thomas P. Stafford
ⓘ
linked to:
Thomas Stafford
|
| country |
United States
ⓘ
linked to:
United States of America
|
| crewChangeReason | T-38 jet crash killing original prime crew ⓘ |
| crewMember |
Eugene A. Cernan
ⓘ
linked to:
Eugene Cernan
Thomas P. Stafford ⓘ
linked to:
Thomas Stafford
|
| crewSize | 2 ⓘ |
| EVADuration | 2 hours 7 minutes ⓘ |
| EVAIssues | visor fogging and high workload ⓘ |
| EVAPerformedBy |
Eugene A. Cernan
ⓘ
linked to:
Eugene Cernan
|
| EVAPurpose | test of Astronaut Maneuvering Unit (AMU) ⓘ |
| followedBy | Gemini 10 ⓘ |
| inclination | 28.9 degrees ⓘ |
| landingDate | 1966-06-06 ⓘ |
| landingSite | Atlantic Ocean ⓘ |
| launchDate | 1966-06-03 ⓘ |
| launchSite |
Cape Kennedy Air Force Station Launch Complex 19
ⓘ
LC-19 ⓘ |
| launchVehicle | Titan II GLV ⓘ |
| missionDuration |
3 days
ⓘ
72 hours 20 minutes 50 seconds ⓘ |
| missionNumber | 9 ⓘ |
| missionType | Earth-orbital mission ⓘ |
| officialName | Gemini 9A ⓘ |
| operator | NASA ⓘ |
| orbitsCompleted | 45 ⓘ |
| originalPrimeCrewCommander | Elliot M. See Jr. ⓘ |
| originalPrimeCrewPilot | Charles A. Bassett II ⓘ |
| performedRendezvousWith |
Augmented Target Docking Adapter (ATDA)
ⓘ
linked to:
Augmented Target Docking Adapter
|
| periapsis | approximately 158 km ⓘ |
| pilot |
Eugene A. Cernan
ⓘ
linked to:
Eugene Cernan
|
| plannedTargetVehicle |
Gemini Agena Target Vehicle (GATV-5004)
ⓘ
linked to:
Agena Target Vehicle
|
| precededBy | Gemini 8 ⓘ |
| primaryObjective |
docking procedures testing
ⓘ
extravehicular activity testing ⓘ preparation for Apollo lunar missions ⓘ rendezvous procedures testing ⓘ |
| program | Project Gemini ⓘ |
| recoveryShip | USS Wasp ⓘ |
| reentryMethod | ballistic reentry ⓘ |
| rendezvousOutcome | successful rendezvous with ATDA without docking ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraftManufacturer |
McDonnell Aircraft Corporation
ⓘ
linked to:
McDonnell Douglas
|
| spacecraftType | Gemini spacecraft ⓘ |
| year | 1966 ⓘ |
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: Gemini 9 Description of subject: Gemini 9 was a 1966 NASA crewed spaceflight in the Gemini program that tested rendezvous, docking, and spacewalk procedures in preparation for the Apollo lunar missions.
Referenced by (5)
Full triples — surface form annotated when it differs from this entity's canonical label.