Mercury spacecraft Sigma 7
E574796
Mercury spacecraft Sigma 7 was the crewed capsule flown by astronaut Wally Schirra on NASA’s Mercury-Atlas 8 mission, a 1962 Earth-orbital flight focused on engineering tests and spacecraft performance.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Mercury spacecraft Sigma 7 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6214596 — 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: Mercury spacecraft Sigma 7 Context triple: [Mercury-Atlas 8, spacecraft, Mercury spacecraft Sigma 7]
-
A.
Mercury spacecraft
The Mercury spacecraft was NASA’s first crewed space vehicle, designed in the early 1960s to carry a single astronaut into Earth orbit and safely return them, paving the way for later Gemini and Apollo missions.
-
B.
Gemini spacecraft
The Gemini spacecraft was NASA’s two-person capsule used in the mid-1960s to develop critical spaceflight techniques such as orbital rendezvous, docking, and extended missions in preparation for the Apollo Moon landings.
-
C.
Mercury spacecraft Freedom 7
Mercury spacecraft Freedom 7 was the capsule that carried astronaut Alan Shepard on the first American crewed spaceflight in 1961.
-
D.
Friendship 7
Friendship 7 was the Mercury spacecraft in which astronaut John Glenn became the first American to orbit the Earth in 1962.
-
E.
Gemini 6A
Gemini 6A was a 1965 NASA crewed spaceflight that achieved the first successful rendezvous between two orbiting spacecraft during the Gemini program.
- 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: Mercury spacecraft Sigma 7 Target entity description: Mercury spacecraft Sigma 7 was the crewed capsule flown by astronaut Wally Schirra on NASA’s Mercury-Atlas 8 mission, a 1962 Earth-orbital flight focused on engineering tests and spacecraft performance.
-
A.
Mercury spacecraft
The Mercury spacecraft was NASA’s first crewed space vehicle, designed in the early 1960s to carry a single astronaut into Earth orbit and safely return them, paving the way for later Gemini and Apollo missions.
-
B.
Gemini spacecraft
The Gemini spacecraft was NASA’s two-person capsule used in the mid-1960s to develop critical spaceflight techniques such as orbital rendezvous, docking, and extended missions in preparation for the Apollo Moon landings.
-
C.
Mercury spacecraft Freedom 7
Mercury spacecraft Freedom 7 was the capsule that carried astronaut Alan Shepard on the first American crewed spaceflight in 1961.
-
D.
Friendship 7
Friendship 7 was the Mercury spacecraft in which astronaut John Glenn became the first American to orbit the Earth in 1962.
-
E.
Gemini 6A
Gemini 6A was a 1965 NASA crewed spaceflight that achieved the first successful rendezvous between two orbiting spacecraft during the Gemini program.
- F. None of above. chosen
Statements (41)
| Predicate | Object |
|---|---|
| instanceOf | Mercury spacecraft ⓘ |
| attitudeControl | reaction control system ⓘ |
| callsign | Sigma 7 NERFINISHED ⓘ |
| commander | Wally Schirra NERFINISHED ⓘ |
| communicationSystem | VHF radio ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| crewCompartment | pressurized ⓘ |
| crewMember | Wally Schirra NERFINISHED ⓘ |
| crewSeat | single couch for pilot ⓘ |
| crewSize | 1 ⓘ |
| currentLocation | Smithsonian National Air and Space Museum collection NERFINISHED ⓘ |
| escapeSystem | launch escape tower ⓘ |
| followedBy | Mercury spacecraft Faith 7 NERFINISHED ⓘ |
| guidanceSystem | inertial guidance and ground-based tracking ⓘ |
| heatShield | ablative heat shield ⓘ |
| landingDate | 1962-10-03 ⓘ |
| landingSite | Pacific Ocean NERFINISHED ⓘ |
| launchDate | 1962-10-03 ⓘ |
| launchMass | approximately 1,400 kilograms ⓘ |
| launchSite | Cape Canaveral Air Force Station Launch Complex 14 NERFINISHED ⓘ |
| launchVehicle | Atlas LV-3B NERFINISHED ⓘ |
| lifeSupport | environmental control system ⓘ |
| manufacturer | McDonnell Aircraft Corporation NERFINISHED ⓘ |
| mission | Mercury-Atlas 8 NERFINISHED ⓘ |
| missionDuration | 9 hours 13 minutes ⓘ |
| missionFocus |
fuel management tests
ⓘ
spacecraft systems reliability ⓘ |
| missionOutcome | success ⓘ |
| missionType | Earth-orbital flight ⓘ |
| notableFeature | emphasis on precise fuel and attitude control ⓘ |
| numberOfOrbits | 6 ⓘ |
| operator | NASA ⓘ |
| orbitType | low Earth orbit ⓘ |
| powerSource | batteries ⓘ |
| precededBy | Mercury spacecraft Aurora 7 NERFINISHED ⓘ |
| primaryObjective |
engineering tests
ⓘ
spacecraft performance evaluation ⓘ |
| program | Project Mercury NERFINISHED ⓘ |
| recoveryShip | USS Kearsarge NERFINISHED ⓘ |
| reentryMethod | ballistic reentry ⓘ |
| spacecraftSeries | Mercury spacecraft series NERFINISHED ⓘ |
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: Mercury spacecraft Sigma 7 Description of subject: Mercury spacecraft Sigma 7 was the crewed capsule flown by astronaut Wally Schirra on NASA’s Mercury-Atlas 8 mission, a 1962 Earth-orbital flight focused on engineering tests and spacecraft performance.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.