CE-20
E822848
CE-20 is a cryogenic rocket engine developed by the Indian Space Research Organisation (ISRO) to power the upper stage of its heavy-lift launch vehicles.
All labels observed (1)
| Label | Occurrences |
|---|---|
| CE-20 canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9808713 — 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 Context triple: [LVM3, upperStageEngine, CE-20]
-
A.
CM-CE
CM-CE is the regional code for the Centre Region of Cameroon, which includes the capital city, Yaoundé.
-
B.
CEPE
CEPE is the commonly used abbreviation for the Community of Protestant Churches in Europe, a fellowship of Protestant churches across the continent.
-
C.
CEC
CEC is the three-letter IATA airport code for Del Norte County Regional Airport in Crescent City, California.
-
D.
CEC
CEC is the primary state agency responsible for energy policy, planning, and regulation in California.
-
E.
CEC
CEC is the commonly used abbreviation for the College of Engineering and Computing, an academic division focused on engineering and computing disciplines.
- 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 Target entity description: CE-20 is a cryogenic rocket engine developed by the Indian Space Research Organisation (ISRO) to power the upper stage of its heavy-lift launch vehicles.
-
A.
CM-CE
CM-CE is the regional code for the Centre Region of Cameroon, which includes the capital city, Yaoundé.
-
B.
CEPE
CEPE is the commonly used abbreviation for the Community of Protestant Churches in Europe, a fellowship of Protestant churches across the continent.
-
C.
CEC
CEC is the three-letter IATA airport code for Del Norte County Regional Airport in Crescent City, California.
-
D.
CEC
CEC is the primary state agency responsible for energy policy, planning, and regulation in California.
-
E.
CEC
CEC is the commonly used abbreviation for the College of Engineering and Computing, an academic division focused on engineering and computing disciplines.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf | cryogenic rocket engine ⓘ |
| application |
deep space mission injection
ⓘ
satellite launch ⓘ |
| associatedAgency | Department of Space (India) NERFINISHED ⓘ |
| belongsToProgram | Indian cryogenic engine program NERFINISHED ⓘ |
| burnTime | long-duration upper-stage burn ⓘ |
| category | rocket engine ⓘ |
| chamberPressure | approximately 60 bar ⓘ |
| countryOfOrigin | India ⓘ |
| designedFor |
GSLV Mk III
NERFINISHED
ⓘ
LVM3 NERFINISHED ⓘ |
| designGoal |
enable higher payload capacity to GTO
ⓘ
provide indigenous cryogenic upper-stage capability ⓘ |
| developer | Indian Space Research Organisation NERFINISHED ⓘ |
| developmentAgency | Liquid Propulsion Systems Centre NERFINISHED ⓘ |
| engineCycle | gas-generator cycle ⓘ |
| firstFlightVehicle | LVM3-D3 NERFINISHED ⓘ |
| firstOperationalUse | GSLV Mk III / LVM3 missions NERFINISHED ⓘ |
| fuel | liquid hydrogen ⓘ |
| gimbalCapability | yes ⓘ |
| ignitionSystem | pyrotechnic igniter ⓘ |
| intendedStage | upper stage ⓘ |
| manufacturer | Liquid Propulsion Systems Centre NERFINISHED ⓘ |
| missionProfile | injection into GTO and higher orbits ⓘ |
| operatingEnvironment | vacuum ⓘ |
| organization | ISRO NERFINISHED ⓘ |
| oxidizer | liquid oxygen ⓘ |
| propellantCombination | LOX-LH2 ⓘ |
| propellantFeedSystem | turbopump-fed ⓘ |
| propellantType | cryogenic ⓘ |
| propulsionType | chemical rocket ⓘ |
| relatedEngine | CE-7.5 ⓘ |
| restartCapability | single-start ⓘ |
| role | upper-stage propulsion for heavy-lift rockets ⓘ |
| specificImpulseVacuum | approximately 442 s ⓘ |
| status | operational ⓘ |
| technologyOrigin | indigenously developed in India ⓘ |
| testFacility | ISRO Propulsion Complex, Mahendragiri NERFINISHED ⓘ |
| thrustVacuum | approximately 200 kN ⓘ |
| thrustVectorControl | gimballed engine mount ⓘ |
| usedBy | ISRO launch vehicles NERFINISHED ⓘ |
| usedFor |
communication satellite launches
ⓘ
geosynchronous transfer orbit missions ⓘ heavy-lift launch vehicles ⓘ |
| usedIn |
C25 stage
ⓘ
LVM3 upper stage NERFINISHED ⓘ |
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 Description of subject: CE-20 is a cryogenic rocket engine developed by the Indian Space Research Organisation (ISRO) to power the upper stage of its heavy-lift launch vehicles.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.