Luna 4
E556633
Luna 4 was a Soviet Luna program spacecraft launched in 1963 that became the first attempted soft-landing mission to the Moon, though it ultimately missed the lunar surface.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Luna 4 canonical | 3 |
How this entity was disambiguated
This entity first appeared as the object of triple T5623425 — 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: Luna 4 Context triple: [Luna 3, followedBy, Luna 4]
-
A.
Luna 2
Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
-
B.
Luna 1
Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
-
C.
Luna 3
Luna 3 was a Soviet spacecraft launched in 1959 that became the first mission to photograph the far side of the Moon.
-
D.
Luna 9
Luna 9 was a Soviet spacecraft that achieved the first successful soft landing on the Moon and transmitted the first close-up images of the lunar surface in 1966.
-
E.
Luna 12
Luna 12 was a Soviet unmanned spacecraft launched in 1966 that successfully entered lunar orbit and returned detailed photographs of the Moon’s surface.
- 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: Luna 4 Target entity description: Luna 4 was a Soviet Luna program spacecraft launched in 1963 that became the first attempted soft-landing mission to the Moon, though it ultimately missed the lunar surface.
-
A.
Luna 2
Luna 2 was a Soviet space probe that became the first human-made object to reach the Moon, marking a major milestone in early space exploration.
-
B.
Luna 1
Luna 1 was a Soviet spacecraft launched in 1959 that became the first human-made object to reach the vicinity of the Moon and enter a heliocentric orbit.
-
C.
Luna 3
Luna 3 was a Soviet spacecraft launched in 1959 that became the first mission to photograph the far side of the Moon.
-
D.
Luna 9
Luna 9 was a Soviet spacecraft that achieved the first successful soft landing on the Moon and transmitted the first close-up images of the lunar surface in 1966.
-
E.
Luna 12
Luna 12 was a Soviet unmanned spacecraft launched in 1966 that successfully entered lunar orbit and returned detailed photographs of the Moon’s surface.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
spacecraft
ⓘ
uncrewed spacecraft ⓘ |
| carriedInstrument |
micrometeoroid detectors
ⓘ
radiation detectors ⓘ radio telemetry system ⓘ television system ⓘ |
| communicationBand | radio ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| crew | uncrewed ⓘ |
| designer | Sergei Korolev NERFINISHED ⓘ |
| destination | Moon NERFINISHED ⓘ |
| epoch | Space Race NERFINISHED ⓘ |
| failureCause |
guidance system error
ⓘ
incorrect mid-course correction ⓘ |
| flybyDistance | approximately 8,500 kilometers from lunar surface ⓘ |
| followedBy | Luna 5 NERFINISHED ⓘ |
| historicalSignificance | early attempt at robotic lunar landing ⓘ |
| intendedMission | soft landing on the Moon ⓘ |
| languageOfDocumentation | Russian ⓘ |
| launchCountry | Kazakh SSR NERFINISHED ⓘ |
| launchDate | 1963-04-02 ⓘ |
| launchOutcome | success ⓘ |
| launchSite |
Baikonur Cosmodrome
NERFINISHED
ⓘ
Baikonur Cosmodrome Site 1/5 NERFINISHED ⓘ |
| launchVehicle | Molniya-M rocket NERFINISHED ⓘ |
| manufacturer | OKB-1 NERFINISHED ⓘ |
| missionDuration | several days ⓘ |
| missionOutcome |
missed Moon
ⓘ
partial failure ⓘ |
| missionType |
lunar lander
ⓘ
planetary science mission ⓘ |
| notableFor | first attempted soft landing mission to the Moon ⓘ |
| operator | Soviet space program NERFINISHED ⓘ |
| partOf | Soviet lunar exploration program NERFINISHED ⓘ |
| powerSource |
chemical batteries
ⓘ
solar panels ⓘ |
| precededBy | Luna 3 NERFINISHED ⓘ |
| program | Luna program NERFINISHED ⓘ |
| resultedIn | heliocentric orbit after missing Moon ⓘ |
| spaceAgency | Soviet Academy of Sciences NERFINISHED ⓘ |
| spacecraftBus | Ye-6 NERFINISHED ⓘ |
| spacecraftMass | approximately 1,422 kilograms ⓘ |
| status | mission completed ⓘ |
| targetBody | Moon NERFINISHED ⓘ |
| trajectoryType | lunar transfer trajectory ⓘ |
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: Luna 4 Description of subject: Luna 4 was a Soviet Luna program spacecraft launched in 1963 that became the first attempted soft-landing mission to the Moon, though it ultimately missed the lunar surface.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.