Magellan
E1036561
Magellan was a NASA robotic space probe that mapped the surface of Venus using synthetic aperture radar in the early 1990s.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Magellan canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13375090 — 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: Magellan Context triple: [STS-30, deployedSpacecraft, Magellan]
-
A.
Ferdinand Magellan
Ferdinand Magellan was a Portuguese explorer who led the first expedition to circumnavigate the globe, significantly advancing European knowledge of world geography.
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B.
Juan Sebastián Elcano
Juan Sebastián Elcano was a Spanish explorer and navigator best known for completing the first circumnavigation of the Earth after Magellan’s death.
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C.
Magellan I
Magellan I is a large optical telescope at Las Campanas Observatory in Chile, forming one of the twin Magellan telescopes used for advanced astronomical research.
-
D.
da Gama
da Gama is a Portuguese surname most famously associated with the explorer Vasco da Gama and his descendants.
-
E.
Pedro Alonso Niño
Pedro Alonso Niño was a Spanish navigator and explorer from Moguer who sailed with Christopher Columbus on his first voyage to the Americas.
- 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: Magellan Target entity description: Magellan was a NASA robotic space probe that mapped the surface of Venus using synthetic aperture radar in the early 1990s.
-
A.
Ferdinand Magellan
Ferdinand Magellan was a Portuguese explorer who led the first expedition to circumnavigate the globe, significantly advancing European knowledge of world geography.
-
B.
Juan Sebastián Elcano
Juan Sebastián Elcano was a Spanish explorer and navigator best known for completing the first circumnavigation of the Earth after Magellan’s death.
-
C.
Magellan I
Magellan I is a large optical telescope at Las Campanas Observatory in Chile, forming one of the twin Magellan telescopes used for advanced astronomical research.
-
D.
da Gama
da Gama is a Portuguese surname most famously associated with the explorer Vasco da Gama and his descendants.
-
E.
Pedro Alonso Niño
Pedro Alonso Niño was a Spanish navigator and explorer from Moguer who sailed with Christopher Columbus on his first voyage to the Americas.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
NASA spacecraft
ⓘ
Venus orbiter ⓘ space probe ⓘ |
| aerobrakingPurpose | lower orbit and improve gravity field resolution ⓘ |
| aerobrakingStart | 1993-05 ⓘ |
| attitudeControl | spin stabilization with thrusters ⓘ |
| communicationBand | X-band ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| dataCollectionMethod |
gravity field mapping
ⓘ
radar imaging ⓘ radio occultation experiments ⓘ |
| deployedFrom |
Space Shuttle Atlantis STS-30
ⓘ
linked to:
STS-30
|
| disposition | intentionally deorbited into Venus atmosphere ⓘ |
| enteredOrbitAround | Venus ⓘ |
| launchDate | 1989-05-04 ⓘ |
| launchedFrom | Kennedy Space Center ⓘ |
| launchSite | Kennedy Space Center Launch Complex 39B ⓘ |
| launchVehicle | Space Shuttle Atlantis ⓘ |
| managedBy |
NASA Jet Propulsion Laboratory
ⓘ
linked to:
Jet Propulsion Laboratory
|
| mappedSurfaceCoverage | over 98 percent of Venus surface ⓘ |
| massAtLaunch | about 3450 kilograms ⓘ |
| missionEnd | 1994-10-13 ⓘ |
| missionPhase |
aerobraking experiment phase
ⓘ
global mapping cycles ⓘ gravity mapping phase ⓘ |
| missionType |
planetary science mission
ⓘ
radar mapping mission ⓘ |
| namedAfter | Ferdinand Magellan ⓘ |
| notableResult |
characterized Venusian tectonic and impact structures
ⓘ
produced first global high-resolution radar map of Venus ⓘ revealed widespread volcanic features on Venus ⓘ |
| operator | NASA ⓘ |
| orbitInclination | about 85 degrees ⓘ |
| orbitType | near-polar orbit around Venus ⓘ |
| performedAerobraking | yes ⓘ |
| powerSource | solar panels ⓘ |
| primaryObjective | map surface of Venus ⓘ |
| program | NASA Discovery-era precursor mission ⓘ |
| propulsionType | monopropellant hydrazine system ⓘ |
| radarResolution | about 100 to 300 meters ⓘ |
| scienceOperationsStart | 1990-09-15 ⓘ |
| spacecraftBus |
instruments from Pioneer Venus Orbiter
ⓘ
modified Voyager bus ⓘ |
| spacecraftConfiguration | spin-stabilized spacecraft ⓘ |
| status | mission completed ⓘ |
| target | Venus ⓘ |
| usesInstrument | synthetic aperture radar ⓘ |
| VenusOrbitInsertionDate | 1990-08-10 ⓘ |
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: Magellan Description of subject: Magellan was a NASA robotic space probe that mapped the surface of Venus using synthetic aperture radar in the early 1990s.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.