CE-20 cryogenic engine
E256007
The CE-20 cryogenic engine is an Indian-developed, liquid hydrogen–liquid oxygen rocket engine that powers the upper stage of ISRO’s heaviest launch vehicles for placing large payloads into orbit.
All labels observed (2)
| Label | Occurrences |
|---|---|
| CE-20 cryogenic engine canonical | 1 |
| Cryogenic Engine-20 | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2330384 — 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: CE-20 cryogenic engine Context triple: [GSLV Mk III, thirdStageEngine, CE-20 cryogenic engine]
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A.
Interim Cryogenic Propulsion Stage
The Interim Cryogenic Propulsion Stage is a liquid hydrogen–liquid oxygen upper stage used on early NASA Space Launch System missions to provide orbital insertion and translunar injection capability before the introduction of a more powerful exploration upper stage.
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B.
RD-107
RD-107 is a Soviet-designed liquid-fueled rocket engine, best known for powering the first stages of early R-7 family launch vehicles used in historic missions like Sputnik and Vostok.
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C.
Curtiss-Wright XLR25 rocket engine
The Curtiss-Wright XLR25 was an American liquid-fueled rocket engine developed in the 1950s to power high-speed experimental research aircraft such as the Bell X-2.
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D.
Space Shuttle Main Engines
The Space Shuttle Main Engines were highly efficient, reusable liquid-fuel rocket engines that powered NASA’s Space Shuttle orbiters during launch and ascent into space.
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E.
J-2
The J-2 was a liquid-fueled rocket engine used on NASA’s Saturn rockets to power upper stages during the Apollo and early Skylab missions.
- 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: CE-20 cryogenic engine Target entity description: The CE-20 cryogenic engine is an Indian-developed, liquid hydrogen–liquid oxygen rocket engine that powers the upper stage of ISRO’s heaviest launch vehicles for placing large payloads into orbit.
-
A.
Interim Cryogenic Propulsion Stage
The Interim Cryogenic Propulsion Stage is a liquid hydrogen–liquid oxygen upper stage used on early NASA Space Launch System missions to provide orbital insertion and translunar injection capability before the introduction of a more powerful exploration upper stage.
-
B.
RD-107
RD-107 is a Soviet-designed liquid-fueled rocket engine, best known for powering the first stages of early R-7 family launch vehicles used in historic missions like Sputnik and Vostok.
-
C.
Curtiss-Wright XLR25 rocket engine
The Curtiss-Wright XLR25 was an American liquid-fueled rocket engine developed in the 1950s to power high-speed experimental research aircraft such as the Bell X-2.
-
D.
Space Shuttle Main Engines
The Space Shuttle Main Engines were highly efficient, reusable liquid-fuel rocket engines that powered NASA’s Space Shuttle orbiters during launch and ascent into space.
-
E.
J-2
The J-2 was a liquid-fueled rocket engine used on NASA’s Saturn rockets to power upper stages during the Apollo and early Skylab missions.
- F. None of above. chosen
Statements (47)
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: CE-20 cryogenic engine Description of subject: The CE-20 cryogenic engine is an Indian-developed, liquid hydrogen–liquid oxygen rocket engine that powers the upper stage of ISRO’s heaviest launch vehicles for placing large payloads into orbit.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
GSLV Mk III
subject surface form:
CE-20
this entity surface form:
Cryogenic Engine-20