Surveyor 2
E936797
Surveyor 2 was a NASA unmanned lunar lander launched in 1966 as part of the Surveyor program, intended to test soft-landing techniques on the Moon but lost due to a mid-course correction failure.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Surveyor 2 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T11509346 — 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: Surveyor 2 Context triple: [Surveyor program, missionDesignation, Surveyor 2]
-
A.
Surveyor 1
Surveyor 1 was NASA’s first successful unmanned lunar lander, which transmitted detailed images and data from the Moon’s surface in 1966.
-
B.
Surveyor 7
Surveyor 7 was a NASA unmanned lunar lander that successfully touched down on the Moon in 1968 to conduct scientific experiments and surface imaging.
-
C.
Mariner 9
Mariner 9 was a NASA robotic spacecraft that became the first artificial satellite of Mars, revolutionizing our understanding of the planet’s surface and atmosphere in the early 1970s.
-
D.
Luna 17
Luna 17 was a Soviet lunar mission launched in 1970 that successfully delivered the Lunokhod 1 rover to the Moon, achieving the first remote-controlled rover operation on another celestial body.
-
E.
Mariner 6
Mariner 6 was a NASA spacecraft launched in 1969 that conducted one of the first successful flyby missions to Mars, returning close-up images and data about the planet’s surface and atmosphere.
- 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: Surveyor 2 Target entity description: Surveyor 2 was a NASA unmanned lunar lander launched in 1966 as part of the Surveyor program, intended to test soft-landing techniques on the Moon but lost due to a mid-course correction failure.
-
A.
Surveyor 1
Surveyor 1 was NASA’s first successful unmanned lunar lander, which transmitted detailed images and data from the Moon’s surface in 1966.
-
B.
Surveyor 7
Surveyor 7 was a NASA unmanned lunar lander that successfully touched down on the Moon in 1968 to conduct scientific experiments and surface imaging.
-
C.
Mariner 9
Mariner 9 was a NASA robotic spacecraft that became the first artificial satellite of Mars, revolutionizing our understanding of the planet’s surface and atmosphere in the early 1970s.
-
D.
Luna 17
Luna 17 was a Soviet lunar mission launched in 1970 that successfully delivered the Lunokhod 1 rover to the Moon, achieving the first remote-controlled rover operation on another celestial body.
-
E.
Mariner 6
Mariner 6 was a NASA spacecraft launched in 1969 that conducted one of the first successful flyby missions to Mars, returning close-up images and data about the planet’s surface and atmosphere.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
NASA space probe
ⓘ
spacecraft ⓘ uncrewed lunar lander ⓘ |
| belongsTo | uncrewed lunar missions ⓘ |
| communicationStatus | lost prior to landing phase ⓘ |
| countryOfOperator |
United States
ⓘ
linked to:
United States of America
|
| designedFor | direct descent to lunar surface ⓘ |
| destination | lunar surface ⓘ |
| era | early lunar exploration ⓘ |
| failureCause | mid-course correction failure ⓘ |
| failureEvent | attitude control problem after mid-course correction burn ⓘ |
| followedBy | Surveyor 3 ⓘ |
| impactBody | Moon ⓘ |
| impactDate | 1966-09-23 ⓘ |
| impactOutcome | uncontrolled lunar impact ⓘ |
| impactWith | Moon ⓘ |
| intendedLandingMode | soft landing ⓘ |
| isPartOf | United States lunar exploration efforts ⓘ |
| launchCountry |
United States
ⓘ
linked to:
United States of America
|
| launchDate | 1966-09-20 ⓘ |
| launchMass | approximately 995 kilograms ⓘ |
| launchSite |
Cape Kennedy
ⓘ
linked to:
Cape Canaveral
Cape Kennedy Air Force Station Launch Complex 36A ⓘ
linked to:
Cape Canaveral Launch Complex 36
|
| launchVehicle |
Atlas LV-3C Centaur-D
ⓘ
linked to:
Atlas LV-3C Centaur
|
| launchYear | 1966 ⓘ |
| lostDuring | cruise phase to Moon ⓘ |
| manufacturer | Hughes Aircraft Company ⓘ |
| missionType |
lunar lander
ⓘ
technology demonstration mission ⓘ |
| operator | NASA ⓘ |
| outcome | spacecraft lost ⓘ |
| partOf | Surveyor program ⓘ |
| powerSource |
batteries
ⓘ
solar panels ⓘ |
| precededBy | Surveyor 1 ⓘ |
| primaryObjective | demonstrate lunar soft-landing capability ⓘ |
| program | Surveyor program ⓘ |
| programGoal |
support Apollo program lunar landing planning
ⓘ
test soft-landing techniques on the Moon ⓘ |
| programSponsor |
NASA Jet Propulsion Laboratory
ⓘ
linked to:
Jet Propulsion Laboratory
|
| propulsionType | liquid-fueled vernier engines ⓘ |
| secondaryObjective | obtain lunar surface data for Apollo program ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraftBus |
Surveyor lander bus
ⓘ
linked to:
Surveyor bus
|
| spacecraftType | lander ⓘ |
| status | mission failure ⓘ |
| targetBody | Moon ⓘ |
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: Surveyor 2 Description of subject: Surveyor 2 was a NASA unmanned lunar lander launched in 1966 as part of the Surveyor program, intended to test soft-landing techniques on the Moon but lost due to a mid-course correction failure.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.