DAN on Curiosity rover
E229530
DAN on Curiosity rover is a neutron-spectrometer instrument aboard NASA's Mars Curiosity rover designed to detect and measure subsurface hydrogen, primarily to infer the presence of water or hydrated minerals.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Curiosity rover DAN | 1 |
| DAN on Curiosity rover canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2040847 — 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: DAN on Curiosity rover Context triple: [Rubin Ridge, observedByInstrument, DAN on Curiosity rover]
-
A.
Curiosity rover
Curiosity rover is a NASA Mars rover designed to explore the Gale Crater, study the planet’s climate and geology, and assess whether Mars ever had environmental conditions suitable for microbial life.
-
B.
ChemCam
ChemCam is a laser-based remote sensing instrument on NASA's Curiosity Mars rover used to analyze the chemical composition of Martian rocks and soil.
-
C.
SuperCam
SuperCam is a remote-sensing instrument on NASA's Perseverance Mars rover that uses lasers, cameras, and spectrometers to analyze the composition of Martian rocks and soil from a distance.
-
D.
Spirit rover
Spirit rover was a NASA robotic exploration vehicle that conducted geological studies on the surface of Mars as part of the Mars Exploration Rover mission.
-
E.
The Curiosity
The Curiosity is a science fiction novel by Travis Beacham that explores themes of resurrection, memory, and the ethics of scientific experimentation.
- 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: DAN on Curiosity rover Target entity description: DAN on Curiosity rover is a neutron-spectrometer instrument aboard NASA's Mars Curiosity rover designed to detect and measure subsurface hydrogen, primarily to infer the presence of water or hydrated minerals.
-
A.
Curiosity rover
Curiosity rover is a NASA Mars rover designed to explore the Gale Crater, study the planet’s climate and geology, and assess whether Mars ever had environmental conditions suitable for microbial life.
-
B.
ChemCam
ChemCam is a laser-based remote sensing instrument on NASA's Curiosity Mars rover used to analyze the chemical composition of Martian rocks and soil.
-
C.
SuperCam
SuperCam is a remote-sensing instrument on NASA's Perseverance Mars rover that uses lasers, cameras, and spectrometers to analyze the composition of Martian rocks and soil from a distance.
-
D.
Spirit rover
Spirit rover was a NASA robotic exploration vehicle that conducted geological studies on the surface of Mars as part of the Mars Exploration Rover mission.
-
E.
The Curiosity
The Curiosity is a science fiction novel by Travis Beacham that explores themes of resurrection, memory, and the ethics of scientific experimentation.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
Mars rover payload instrument
ⓘ
neutron spectrometer ⓘ scientific instrument ⓘ |
| aboard |
Curiosity rover
ⓘ
Mars Science Laboratory ⓘ |
| acronym | DAN ⓘ |
| collaborationWith | NASA ⓘ |
| countryOfLeadDevelopment | Russia ⓘ |
| dataProduct |
neutron count rates
ⓘ
water-equivalent hydrogen estimates ⓘ |
| dataUsedFor |
assessing past habitability
ⓘ
characterizing ground ice or hydrated minerals ⓘ mapping subsurface hydrogen distribution ⓘ |
| detects |
hydrogen-rich layers
ⓘ
variations in subsurface hydration ⓘ |
| fullName | Dynamic Albedo of Neutrons ⓘ |
| hasMode |
active mode
ⓘ
passive mode ⓘ |
| hostPlatform |
Mars Science Laboratory Curiosity rover
ⓘ
linked to:
Curiosity rover
|
| hostPlatformType | Mars rover ⓘ |
| instrumentType | neutron-spectrometer instrument ⓘ |
| landingSiteRegion | Gale Crater ⓘ |
| launchVehicleOfHost | Atlas V 541 ⓘ |
| locatedOn | Curiosity rover chassis underside ⓘ |
| measurementType |
epithermal neutrons
ⓘ
neutron flux ⓘ thermal neutrons ⓘ |
| missionAgencyOfHost |
NASA Jet Propulsion Laboratory
ⓘ
linked to:
Jet Propulsion Laboratory
|
| operatedBy | NASA ⓘ |
| operatedOnBody | Mars ⓘ |
| operationalSince | 2012 ⓘ |
| partOfMission |
Mars Science Laboratory mission
ⓘ
linked to:
Mars Science Laboratory
|
| primaryScienceGoal |
detect subsurface hydrogen
ⓘ
infer presence of hydrated minerals ⓘ infer presence of water ⓘ |
| roleInPayload | geophysical sounding instrument ⓘ |
| scientificDiscipline |
geophysics
ⓘ
planetary science ⓘ |
| senses |
subsurface hydrogen
ⓘ
water-equivalent hydrogen content ⓘ |
| supportsObjective | search for habitable environments on Mars ⓘ |
| targetEnvironment |
Martian regolith
ⓘ
Martian subsurface ⓘ |
| typicalDepthRange | up to about 1 meter below surface ⓘ |
| usesInActiveMode | pulsed neutron generator ⓘ |
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: DAN on Curiosity rover Description of subject: DAN on Curiosity rover is a neutron-spectrometer instrument aboard NASA's Mars Curiosity rover designed to detect and measure subsurface hydrogen, primarily to infer the presence of water or hydrated minerals.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Rubin Ridge on Mars
linked to: DAN on Curiosity rover