PSLV-D1
E264411
PSLV-D1 was the inaugural developmental mission of India’s Polar Satellite Launch Vehicle (PSLV), marking the rocket’s first test flight.
All labels observed (1)
| Label | Occurrences |
|---|---|
| PSLV-D1 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2373034 — 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: PSLV-D1 Context triple: [Polar Satellite Launch Vehicle, firstFlightMission, PSLV-D1]
-
A.
PSLV-C11
PSLV-C11 is an upgraded variant of India’s Polar Satellite Launch Vehicle that successfully launched the country’s first lunar mission, Chandrayaan-1.
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B.
PSLV-XL
PSLV-XL is a high-powered variant of India’s Polar Satellite Launch Vehicle designed to carry heavier payloads into orbit, notably used for missions like the Chandrayaan-1 lunar probe.
-
C.
PSLV-CA
PSLV-CA is a variant of India’s Polar Satellite Launch Vehicle designed for launching smaller payloads into orbit using a configuration without solid strap-on boosters.
-
D.
PSLV-C20
PSLV-C20 is an Indian Polar Satellite Launch Vehicle mission that successfully launched multiple satellites, including the Canadian NEOSSat space telescope, into orbit.
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E.
PSLV launch vehicle family
The PSLV launch vehicle family is a series of reliable, medium-lift Indian rockets developed by ISRO, primarily used to place satellites into polar and sun-synchronous orbits.
- 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: PSLV-D1 Target entity description: PSLV-D1 was the inaugural developmental mission of India’s Polar Satellite Launch Vehicle (PSLV), marking the rocket’s first test flight.
-
A.
PSLV-C11
PSLV-C11 is an upgraded variant of India’s Polar Satellite Launch Vehicle that successfully launched the country’s first lunar mission, Chandrayaan-1.
-
B.
PSLV-XL
PSLV-XL is a high-powered variant of India’s Polar Satellite Launch Vehicle designed to carry heavier payloads into orbit, notably used for missions like the Chandrayaan-1 lunar probe.
-
C.
PSLV-CA
PSLV-CA is a variant of India’s Polar Satellite Launch Vehicle designed for launching smaller payloads into orbit using a configuration without solid strap-on boosters.
-
D.
PSLV-C20
PSLV-C20 is an Indian Polar Satellite Launch Vehicle mission that successfully launched multiple satellites, including the Canadian NEOSSat space telescope, into orbit.
-
E.
PSLV launch vehicle family
The PSLV launch vehicle family is a series of reliable, medium-lift Indian rockets developed by ISRO, primarily used to place satellites into polar and sun-synchronous orbits.
- F. None of above. chosen
Statements (29)
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: PSLV-D1 Description of subject: PSLV-D1 was the inaugural developmental mission of India’s Polar Satellite Launch Vehicle (PSLV), marking the rocket’s first test flight.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.