Chandrayaan-1
E46131
Chandrayaan-1 was India’s first lunar probe, launched in 2008, which successfully orbited the Moon and helped confirm the presence of water molecules on the lunar surface.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Chandrayaan-1 canonical | 22 |
| Chandrayaan-1 lunar mission | 3 |
| Chandrayaan-1 Energetic Neutral Analyzer | 1 |
| Chandrayaan-1 lunar orbiter | 1 |
| Chandrayaan-1 orbiter | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T364087 — 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: Chandrayaan-1 Context triple: [Indian Space Research Organisation, notableMission, Chandrayaan-1]
-
A.
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.
-
B.
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.
-
C.
Luna 10
Luna 10 was a Soviet spacecraft that became the first artificial satellite to orbit the Moon, marking a major milestone in early lunar exploration.
-
D.
Vanguard 1 satellite
Vanguard 1 satellite is an early American artificial Earth satellite launched in 1958 that became the fourth human-made object in space and the oldest still in orbit, used primarily for geophysical and atmospheric research.
-
E.
Vostok 1
Vostok 1 was the Soviet spacecraft that carried Yuri Gagarin on the first human spaceflight, marking humanity’s inaugural journey into outer space in 1961.
- 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: Chandrayaan-1 Target entity description: Chandrayaan-1 was India’s first lunar probe, launched in 2008, which successfully orbited the Moon and helped confirm the presence of water molecules on the lunar surface.
-
A.
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.
-
B.
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.
-
C.
Luna 10
Luna 10 was a Soviet spacecraft that became the first artificial satellite to orbit the Moon, marking a major milestone in early lunar exploration.
-
D.
Vanguard 1 satellite
Vanguard 1 satellite is an early American artificial Earth satellite launched in 1958 that became the fourth human-made object in space and the oldest still in orbit, used primarily for geophysical and atmospheric research.
-
E.
Vostok 1
Vostok 1 was the Soviet spacecraft that carried Yuri Gagarin on the first human spaceflight, marking humanity’s inaugural journey into outer space in 1961.
- F. None of above. chosen
Statements (50)
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: Chandrayaan-1 Description of subject: Chandrayaan-1 was India’s first lunar probe, launched in 2008, which successfully orbited the Moon and helped confirm the presence of water molecules on the lunar surface.
Referenced by (28)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Chandrayaan-1 orbiter
this entity surface form:
Chandrayaan-1 lunar mission
subject surface form:
SARA
subject surface form:
CENA
this entity surface form:
Chandrayaan-1 Energetic Neutral Analyzer
subject surface form:
SARA
subject surface form:
SARA
this entity surface form:
Chandrayaan-1 lunar orbiter
subject surface form:
RADOM-7
subject surface form:
RADOM-7
this entity surface form:
Chandrayaan-1 lunar mission
this entity surface form:
Chandrayaan-1 lunar mission