1998 KY26
E423757
1998 KY26 is a tiny, rapidly rotating near-Earth asteroid selected as the extended mission target for Japan’s Hayabusa2 spacecraft.
All labels observed (1)
| Label | Occurrences |
|---|---|
| 1998 KY26 canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4236715 — 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: 1998 KY26 Context triple: [Hayabusa2, extendedMissionTarget, 1998 KY26]
-
A.
C/1996 B2
C/1996 B2 is the official designation of Comet Hyakutake, a bright long-period comet that passed unusually close to Earth in 1996 and became one of the most spectacular comets of the 20th century.
-
B.
Dibiasky comet
The Dibiasky comet is the fictional, Earth-destroying comet central to the plot of the satirical disaster film "Don't Look Up."
-
C.
asteroid 944 Hidalgo
Asteroid 944 Hidalgo is a large, eccentric, comet-like minor planet that orbits between the inner and outer solar system, making it one of the first known centaur objects.
-
D.
20000 Varuna
20000 Varuna is a large trans-Neptunian object in the Kuiper Belt, notable for its rapid rotation, elongated shape, and status as one of the earliest discovered significant bodies beyond Neptune.
-
E.
Komet
Komet was the nickname of the Messerschmitt Me 163, a German World War II rocket-powered interceptor aircraft known for its extraordinary speed and unconventional design.
- 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: 1998 KY26 Target entity description: 1998 KY26 is a tiny, rapidly rotating near-Earth asteroid selected as the extended mission target for Japan’s Hayabusa2 spacecraft.
-
A.
C/1996 B2
C/1996 B2 is the official designation of Comet Hyakutake, a bright long-period comet that passed unusually close to Earth in 1996 and became one of the most spectacular comets of the 20th century.
-
B.
Dibiasky comet
The Dibiasky comet is the fictional, Earth-destroying comet central to the plot of the satirical disaster film "Don't Look Up."
-
C.
asteroid 944 Hidalgo
Asteroid 944 Hidalgo is a large, eccentric, comet-like minor planet that orbits between the inner and outer solar system, making it one of the first known centaur objects.
-
D.
20000 Varuna
20000 Varuna is a large trans-Neptunian object in the Kuiper Belt, notable for its rapid rotation, elongated shape, and status as one of the earliest discovered significant bodies beyond Neptune.
-
E.
Komet
Komet was the nickname of the Messerschmitt Me 163, a German World War II rocket-powered interceptor aircraft known for its extraordinary speed and unconventional design.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Apollo asteroid
ⓘ
minor planet ⓘ near-Earth asteroid ⓘ potentially hazardous asteroid ⓘ |
| absoluteMagnitude | 26.0 ⓘ |
| albedo | high ⓘ |
| aphelionDistance | about 1.48 AU ⓘ |
| belongsTo | Solar System NERFINISHED ⓘ |
| belongsToPopulation | near-Earth object population ⓘ |
| closeApproachToEarthFrequency | occasional ⓘ |
| diameterRange | about 25–35 meters ⓘ |
| discoverer | LINEAR NERFINISHED ⓘ |
| discoveryDate | 1998-06-02 ⓘ |
| eccentricity | about 0.20 ⓘ |
| flybyPlannedFor | 2031 ⓘ |
| hasScientificInterestFor |
asteroid internal structure studies
ⓘ
planetary defense characterization ⓘ rapid rotator dynamics ⓘ |
| hasVeryShortRotationPeriod | true ⓘ |
| inclination | about 1.5 degrees ⓘ |
| isBackupTargetFor | Hayabusa2 extended mission NERFINISHED ⓘ |
| isMonolithicOrRubblePile | uncertain ⓘ |
| isObservedBy | ground-based telescopes ⓘ |
| isOneOfSmallestNEAsStudied | true ⓘ |
| isRapidRotator | true ⓘ |
| isTargetOf | Hayabusa2 extended mission NERFINISHED ⓘ |
| isVerySmallNEA | true ⓘ |
| lightcurveUsedToDetermine | rotation period ⓘ |
| lightcurveUsedToInfer | shape ⓘ |
| meanDiameter | about 30 meters ⓘ |
| minimumOrbitIntersectionDistanceEarth | about 0.0008 AU ⓘ |
| minorPlanetNumber | 98943 ⓘ |
| missionAgency | JAXA NERFINISHED ⓘ |
| orbitalClass | Apollo group ⓘ |
| orbitalPeriod | about 1.36 years ⓘ |
| orbits | Sun NERFINISHED ⓘ |
| perihelionDistance | about 0.98 AU ⓘ |
| provisionalDesignation | 1998 KY26 ⓘ |
| riskListedBy | Sentry Risk Table NERFINISHED ⓘ |
| rotationPeriod |
0.178 hours
ⓘ
10.7 minutes ⓘ |
| semiMajorAxis | about 1.23 AU ⓘ |
| shape | nearly spherical ⓘ |
| spacecraft | Hayabusa2 NERFINISHED ⓘ |
| spectralType | C-type ⓘ |
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: 1998 KY26 Description of subject: 1998 KY26 is a tiny, rapidly rotating near-Earth asteroid selected as the extended mission target for Japan’s Hayabusa2 spacecraft.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Hayabusa2