Luna 15
E1043182
Luna 15 was a Soviet unmanned lunar probe launched in 1969 that attempted to return samples from the Moon but crashed during its descent.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Luna 15 canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T12807671 — 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 15 Context triple: [Luna spacecraft, hasPart, Luna 15]
-
A.
Luna 13
Luna 13 was a Soviet robotic spacecraft that successfully soft-landed on the Moon in 1966 and transmitted panoramic images and data about the lunar surface.
-
B.
Luna 14
Luna 14 was a Soviet robotic spacecraft launched in 1968 to study the Moon’s gravitational field and test tracking and communication systems for future lunar missions.
-
C.
Luna 20
Luna 20 was a Soviet robotic lunar sample-return mission that successfully collected and returned soil from the Moon’s surface in 1972.
-
D.
Luna 24
Luna 24 was a Soviet lunar sample-return mission launched in 1976 that successfully collected and brought back soil from the Moon’s surface.
-
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 15 Target entity description: Luna 15 was a Soviet unmanned lunar probe launched in 1969 that attempted to return samples from the Moon but crashed during its descent.
-
A.
Luna 13
Luna 13 was a Soviet robotic spacecraft that successfully soft-landed on the Moon in 1966 and transmitted panoramic images and data about the lunar surface.
-
B.
Luna 14
Luna 14 was a Soviet robotic spacecraft launched in 1968 to study the Moon’s gravitational field and test tracking and communication systems for future lunar missions.
-
C.
Luna 20
Luna 20 was a Soviet robotic lunar sample-return mission that successfully collected and returned soil from the Moon’s surface in 1972.
-
D.
Luna 24
Luna 24 was a Soviet lunar sample-return mission launched in 1976 that successfully collected and brought back soil from the Moon’s surface.
-
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 (47)
| Predicate | Object |
|---|---|
| instanceOf |
Soviet spacecraft
ⓘ
sample-return mission ⓘ uncrewed lunar probe ⓘ |
| alternativeName | Ye-8-5 No.401 ⓘ |
| communication | radio contact lost during final descent ⓘ |
| contemporaryWith | Apollo 11 ⓘ |
| countryOfOrigin | Soviet Union ⓘ |
| dataTypeReturned | telemetry before crash ⓘ |
| descentOutcome | crashed during descent to lunar surface ⓘ |
| destination | Moon ⓘ |
| epoch | Space Race ⓘ |
| guidance | radio and inertial guidance system ⓘ |
| historicalSignificance | first Soviet attempt at robotic lunar sample return ⓘ |
| impactBody | Moon ⓘ |
| impactSite |
Mare Crisium region
ⓘ
linked to:
Mare Crisium
|
| intendedReturn | lunar soil capsule to Earth ⓘ |
| launchDate | 1969-07-13 ⓘ |
| launchDateRelativeToApollo11 | launched three days before Apollo 11 launch ⓘ |
| launchSite |
Baikonur Cosmodrome
ⓘ
Baikonur Cosmodrome Site 81 ⓘ
linked to:
Baikonur Cosmodrome
|
| launchVehicle |
Proton-K rocket
ⓘ
linked to:
Proton rocket
|
| launchYear | 1969 ⓘ |
| lunarImpactDate | 1969-07-21 ⓘ |
| lunarImpactTimeRelationToApollo11 | crashed while Apollo 11 astronauts were on the Moon ⓘ |
| lunarOrbitInsertion | 1969-07-17 ⓘ |
| manufacturer | Lavochkin design bureau ⓘ |
| massClass | heavy lunar probe ⓘ |
| missionOutcome | crash on the Moon ⓘ |
| missionType | lunar sample-return attempt ⓘ |
| objective | return lunar soil samples to Earth ⓘ |
| operator |
Soviet Union
ⓘ
Soviet space program ⓘ |
| orbit | entered lunar orbit before descent ⓘ |
| program | Luna programme ⓘ |
| propulsion | chemical rocket engines ⓘ |
| relatedMission |
Luna 16
ⓘ
Luna 20 ⓘ Luna 24 ⓘ |
| sampleReturnCapsule | designed but never returned to Earth ⓘ |
| series | Luna series ⓘ |
| spaceAgency | Soviet Academy of Sciences ⓘ |
| spacecraftBus |
Ye-8 bus
ⓘ
linked to:
Ye-6
|
| spacecraftConfiguration | lander with ascent stage for sample return ⓘ |
| spacecraftFailureMode | collision with lunar surface due to descent error ⓘ |
| spacecraftType |
Ye-8-5
ⓘ
linked to:
Luna Ye-8 series
|
| status | mission failed ⓘ |
| 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: Luna 15 Description of subject: Luna 15 was a Soviet unmanned lunar probe launched in 1969 that attempted to return samples from the Moon but crashed during its descent.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.