K2 mission
E238226
The K2 mission was the extended follow-up to NASA’s Kepler space telescope, conducting high-precision photometric observations along the ecliptic to study exoplanets and stellar variability.
All labels observed (1)
| Label | Occurrences |
|---|---|
| K2 mission canonical | 4 |
How this entity was disambiguated
This entity first appeared as the object of triple T2139383 — 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: K2 mission Context triple: [Mikulski Archive for Space Telescopes, dataSource, K2 mission]
-
A.
BepiColombo mission
The BepiColombo mission is a joint ESA–JAXA spacecraft mission designed to study the planet Mercury’s composition, magnetic field, and environment through dual orbiters.
-
B.
MICROSCOPE satellite mission
The MICROSCOPE satellite mission was a French-led space experiment designed to test the validity of Einstein’s equivalence principle with unprecedented precision by comparing the free fall of different materials in orbit.
-
C.
Europa Clipper mission
The Europa Clipper mission is a NASA spacecraft project designed to conduct detailed reconnaissance of Jupiter’s moon Europa to assess its potential habitability and investigate its subsurface ocean.
-
D.
Dawn mission
The Dawn mission was a NASA space probe that studied the two largest bodies in the asteroid belt, Vesta and Ceres, to investigate the conditions and processes of the early solar system.
-
E.
Mars Odyssey mission
The Mars Odyssey mission is a NASA spacecraft launched in 2001 that orbits Mars to map its surface, study its climate and geology, and search for signs of water and radiation conditions relevant to future human 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: K2 mission Target entity description: The K2 mission was the extended follow-up to NASA’s Kepler space telescope, conducting high-precision photometric observations along the ecliptic to study exoplanets and stellar variability.
-
A.
BepiColombo mission
The BepiColombo mission is a joint ESA–JAXA spacecraft mission designed to study the planet Mercury’s composition, magnetic field, and environment through dual orbiters.
-
B.
MICROSCOPE satellite mission
The MICROSCOPE satellite mission was a French-led space experiment designed to test the validity of Einstein’s equivalence principle with unprecedented precision by comparing the free fall of different materials in orbit.
-
C.
Europa Clipper mission
The Europa Clipper mission is a NASA spacecraft project designed to conduct detailed reconnaissance of Jupiter’s moon Europa to assess its potential habitability and investigate its subsurface ocean.
-
D.
Dawn mission
The Dawn mission was a NASA space probe that studied the two largest bodies in the asteroid belt, Vesta and Ceres, to investigate the conditions and processes of the early solar system.
-
E.
Mars Odyssey mission
The Mars Odyssey mission is a NASA spacecraft launched in 2001 that orbits Mars to map its surface, study its climate and geology, and search for signs of water and radiation conditions relevant to future human exploration.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
NASA mission
ⓘ
astronomical survey ⓘ extended mission ⓘ space telescope mission ⓘ |
| alsoKnownAs |
K2
ⓘ
Second Light mission ⓘ |
| campaignDuration | approximately 80 days per campaign ⓘ |
| countryOfOperator |
United States
ⓘ
linked to:
United States of America
|
| dataArchive | Mikulski Archive for Space Telescopes ⓘ |
| dataPolicy | publicly available data ⓘ |
| dataProduct |
exoplanet transit detections
ⓘ
light curves ⓘ |
| endOfOperations |
2018
ⓘ
October 2018 ⓘ |
| fieldStrategy | sequential observing campaigns ⓘ |
| firstScienceCampaign | 2014 ⓘ |
| follows |
Kepler mission
ⓘ
linked to:
Kepler
|
| hostStarTypeCoverage | a wide range of stellar types ⓘ |
| isExtendedMissionOf |
Kepler mission
ⓘ
linked to:
Kepler
|
| launchDate | 7 March 2009 ⓘ |
| launchSite | Cape Canaveral Air Force Station Space Launch Complex 17B ⓘ |
| launchVehicle |
Delta II rocket
ⓘ
linked to:
Delta rocket
|
| notableResult |
asteroseismic measurements of red giants
ⓘ
characterization of stellar rotation and activity ⓘ discovery of hundreds of confirmed exoplanets ⓘ discovery of thousands of exoplanet candidates ⓘ |
| numberOfCampaigns | 19 ⓘ |
| observationType |
high-precision photometry
ⓘ
time-series photometry ⓘ |
| observesRegion |
ecliptic plane
ⓘ
fields along the ecliptic ⓘ |
| operatedBy |
NASA Ames Research Center
ⓘ
linked to:
Ames Research Center
|
| operator | NASA ⓘ |
| predecessor |
Kepler primary mission
ⓘ
linked to:
Kepler
|
| primaryGoal | detection of exoplanets ⓘ |
| reasonForEnd | spacecraft fuel exhaustion ⓘ |
| researchArea |
asteroseismology
ⓘ
exoplanet science ⓘ galactic archaeology ⓘ solar system small bodies ⓘ stellar variability ⓘ supernovae and extragalactic transients ⓘ |
| spaceAgency | NASA ⓘ |
| spacecraftOrbit | heliocentric Earth-trailing orbit ⓘ |
| startOfOperations | 2014 ⓘ |
| usesInstrument |
Kepler photometer
ⓘ
linked to:
Kepler space telescope
|
| usesPointingMode | two-reaction-wheel control with solar radiation pressure balancing ⓘ |
| usesSpacecraft | Kepler space telescope ⓘ |
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: K2 mission Description of subject: The K2 mission was the extended follow-up to NASA’s Kepler space telescope, conducting high-precision photometric observations along the ecliptic to study exoplanets and stellar variability.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.