Magellan spacecraft
E81108
The Magellan spacecraft was a NASA robotic probe launched in 1989 that used radar mapping to produce the first detailed global images of the surface of Venus.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Magellan spacecraft canonical | 4 |
| Magellan Venus orbiter | 1 |
| Magellan instrumentation suite | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T634478 — 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 spacecraft Context triple: [RCA 1802 microprocessor, usedIn, Magellan spacecraft]
-
A.
Galileo spacecraft
The Galileo spacecraft was a NASA robotic probe launched in 1989 to study the planet Jupiter and its moons, providing groundbreaking data on the Jovian system.
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B.
Voyager 2
Voyager 2 is a NASA space probe launched in 1977 that conducted historic flybys of all four outer giant planets and is now traveling through interstellar space.
-
C.
Voyager 1
Voyager 1 is a NASA space probe launched in 1977 that became the most distant human-made object in space, conducting historic flybys of Jupiter and Saturn and now exploring interstellar space.
-
D.
Pioneer 10
Pioneer 10 is a NASA space probe launched in 1972 that became the first spacecraft to travel through the asteroid belt and make a direct observation of Jupiter before heading into interstellar space.
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E.
Pioneer 11
Pioneer 11 is a NASA space probe launched in 1973 that conducted pioneering flybys of Jupiter and Saturn, helping to open the outer solar system to exploration.
- 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 spacecraft Target entity description: The Magellan spacecraft was a NASA robotic probe launched in 1989 that used radar mapping to produce the first detailed global images of the surface of Venus.
-
A.
Galileo spacecraft
The Galileo spacecraft was a NASA robotic probe launched in 1989 to study the planet Jupiter and its moons, providing groundbreaking data on the Jovian system.
-
B.
Voyager 2
Voyager 2 is a NASA space probe launched in 1977 that conducted historic flybys of all four outer giant planets and is now traveling through interstellar space.
-
C.
Voyager 1
Voyager 1 is a NASA space probe launched in 1977 that became the most distant human-made object in space, conducting historic flybys of Jupiter and Saturn and now exploring interstellar space.
-
D.
Pioneer 10
Pioneer 10 is a NASA space probe launched in 1972 that became the first spacecraft to travel through the asteroid belt and make a direct observation of Jupiter before heading into interstellar space.
-
E.
Pioneer 11
Pioneer 11 is a NASA space probe launched in 1973 that conducted pioneering flybys of Jupiter and Saturn, helping to open the outer solar system to exploration.
- F. None of above. chosen
Statements (50)
| Predicate | Object |
|---|---|
| instanceOf |
Venus orbiter
ⓘ
space probe ⓘ |
| aerobrakingExperiment | performed first large-scale aerobraking test at another planet ⓘ |
| arrivalAtVenus | 1990-08-10 ⓘ |
| bus | modified Voyager and Galileo spare hardware ⓘ |
| communicationBand | X-band ⓘ |
| countryOfOrigin |
United States of America
ⓘ
surface form:
United States
|
| dataReturn | over 1.2 terabits of data returned ⓘ |
| deploymentMethod | deployed from Space Shuttle cargo bay ⓘ |
| discoveries |
found relatively young surface age for Venus
ⓘ
identified tectonic and impact structures on Venus ⓘ revealed widespread volcanic features on Venus ⓘ |
| disposition | intentionally deorbited into Venus atmosphere ⓘ |
| highGainAntennaDiameter | about 3.7 meters ⓘ |
| instrument |
radar altimeter
ⓘ
radiometer ⓘ |
| launchDate | 1989-05-04 ⓘ |
| launchPad |
Kennedy Space Center Launch Complex 39B
ⓘ
surface form:
Launch Complex 39B
|
| launchSite | Kennedy Space Center ⓘ |
| launchVehicle | Space Shuttle Atlantis ⓘ |
| managedBy | Jet Propulsion Laboratory ⓘ |
| massAtLaunch | about 3450 kilograms ⓘ |
| missionEnd | 1994-10-13 ⓘ |
| missionPhase |
gravity mapping cycles 4 and 5
ⓘ
mapping cycles 1, 2, and 3 ⓘ |
| missionResult |
mapped over 98 percent of Venus surface
ⓘ
measured topography of Venus ⓘ produced first detailed global images of Venus ⓘ studied Venus gravity field ⓘ |
| missionType | planetary science mission ⓘ |
| namedAfter | Ferdinand Magellan ⓘ |
| operator | NASA ⓘ |
| orbitInsertion |
Venus
ⓘ
surface form:
Venus orbit
|
| orbitPeriod | about 3.3 hours ⓘ |
| orbitType | near-polar orbit ⓘ |
| powerSource | solar panels ⓘ |
| primaryInstrument | synthetic aperture radar ⓘ |
| primaryObjective | map surface of Venus ⓘ |
| program | NASA Discovery-era precursor ⓘ |
| propulsion | monopropellant hydrazine system ⓘ |
| relatedMission |
Akatsuki Venus climate orbiter
ⓘ
surface form:
Akatsuki
Pioneer Venus project ⓘ
surface form:
Pioneer Venus Orbiter
Venus Express ⓘ |
| spaceAgency |
Jet Propulsion Laboratory
ⓘ
surface form:
NASA Jet Propulsion Laboratory
|
| spacecraftShape | bus with large high-gain antenna dish ⓘ |
| spaceShuttleMission | STS-30 ⓘ |
| surfaceResolution | radar images with resolution as fine as 100–300 meters ⓘ |
| target | Venus ⓘ |
| technologyDemonstration | validated aerobraking for future missions ⓘ |
| upperStage | Inertial Upper Stage ⓘ |
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 spacecraft Description of subject: The Magellan spacecraft was a NASA robotic probe launched in 1989 that used radar mapping to produce the first detailed global images of the surface of Venus.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Magellan Venus orbiter