Pegasus rocket family
E824042
The Pegasus rocket family is a series of air-launched, solid-fueled orbital launch vehicles designed to deploy small satellites into low Earth orbit.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Pegasus rocket | 1 |
| Pegasus rocket family canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9837691 — 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: Pegasus rocket family Context triple: [Pegasus XL, family, Pegasus rocket family]
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A.
Falcon rocket family
The Falcon rocket family is a series of partially reusable launch vehicles developed by SpaceX to provide cost-effective access to space for satellites, cargo, and crew.
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B.
Zenit rocket
The Zenit rocket is a family of Ukrainian-designed, medium-lift launch vehicles originally developed in the Soviet era and used for both government and commercial satellite launches.
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C.
Vanguard rocket
The Vanguard rocket was an early American expendable launch vehicle developed in the 1950s to place the first U.S. satellites into orbit during the early years of the Space Race.
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D.
Luna rocket
The Luna rocket was an early Soviet launch vehicle developed to send unmanned spacecraft to the Moon during the late 1950s and early 1960s.
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E.
Proton rocket
The Proton rocket is a heavy-lift Russian expendable launch vehicle widely used to place large payloads, including space station modules and communications satellites, into orbit.
- 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: Pegasus rocket family Target entity description: The Pegasus rocket family is a series of air-launched, solid-fueled orbital launch vehicles designed to deploy small satellites into low Earth orbit.
-
A.
Falcon rocket family
The Falcon rocket family is a series of partially reusable launch vehicles developed by SpaceX to provide cost-effective access to space for satellites, cargo, and crew.
-
B.
Zenit rocket
The Zenit rocket is a family of Ukrainian-designed, medium-lift launch vehicles originally developed in the Soviet era and used for both government and commercial satellite launches.
-
C.
Vanguard rocket
The Vanguard rocket was an early American expendable launch vehicle developed in the 1950s to place the first U.S. satellites into orbit during the early years of the Space Race.
-
D.
Luna rocket
The Luna rocket was an early Soviet launch vehicle developed to send unmanned spacecraft to the Moon during the late 1950s and early 1960s.
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E.
Proton rocket
The Proton rocket is a heavy-lift Russian expendable launch vehicle widely used to place large payloads, including space station modules and communications satellites, into orbit.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
orbital launch vehicle family
ⓘ
rocket family ⓘ |
| advantage |
flexible launch locations and inclinations
ⓘ
reduced atmospheric drag at ignition due to high-altitude launch ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| customerTypes |
civil space agencies
ⓘ
commercial satellite operators ⓘ military customers ⓘ |
| designGoal | cost-effective access to orbit for small payloads ⓘ |
| developer | Orbital Sciences Corporation NERFINISHED ⓘ |
| familyMember |
Pegasus
NERFINISHED
ⓘ
Pegasus H NERFINISHED ⓘ Pegasus XL NERFINISHED ⓘ |
| firstFlightDate | 1990-04-05 ⓘ |
| firstFlightVehicle | Pegasus NERFINISHED ⓘ |
| firstStagePropellant | solid rocket motor ⓘ |
| guidanceSystem | inertial guidance ⓘ |
| intendedOrbit | low Earth orbit ⓘ |
| launchAzimuthFlexibility | high due to mobile air-launch platform ⓘ |
| launchConfiguration | dropped from aircraft then ignites first stage ⓘ |
| launchEnvironment | high-altitude air launch ⓘ |
| launchInclinations | equatorial to high-inclination LEO ⓘ |
| launchMethod | air-launched ⓘ |
| launchPlatform | Stargazer L-1011 aircraft NERFINISHED ⓘ |
| launchPlatformType | carrier aircraft ⓘ |
| launchServiceType | commercial launch services ⓘ |
| launchSites |
air-launch over Atlantic Ocean
ⓘ
air-launch over Pacific Ocean ⓘ |
| launchVehicleType | expendable launch system ⓘ |
| manufacturer |
Northrop Grumman Innovation Systems
NERFINISHED
ⓘ
Orbital ATK NERFINISHED ⓘ Orbital Sciences Corporation NERFINISHED ⓘ |
| marketSegment | dedicated small satellite launches ⓘ |
| notableFeature | first commercially developed small launch vehicle to reach orbit ⓘ |
| notableLaunchPlatform | Orbital Sciences L-1011 TriStar "Stargazer" GENERATED ⓘ |
| numberOfStages | 3 ⓘ |
| operator |
Northrop Grumman
NERFINISHED
ⓘ
Orbital ATK NERFINISHED ⓘ Orbital Sciences Corporation NERFINISHED ⓘ |
| primaryUse | small satellite launch ⓘ |
| propulsionType | solid-fueled ⓘ |
| secondStagePropellant | solid rocket motor ⓘ |
| status | operational ⓘ |
| successorOrganization |
Northrop Grumman
NERFINISHED
ⓘ
Orbital ATK NERFINISHED ⓘ |
| thirdStagePropellant | solid rocket motor ⓘ |
| typicalPayloadClass | small satellites ⓘ |
| typicalPayloadMassToLEO | around 400 kg ⓘ |
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: Pegasus rocket family Description of subject: The Pegasus rocket family is a series of air-launched, solid-fueled orbital launch vehicles designed to deploy small satellites into low Earth orbit.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Pegasus rocket