Rock Abrasion Tool
E476454
The Rock Abrasion Tool is a grinding device on NASA’s Mars rovers used to remove surface layers from Martian rocks so their fresh interiors can be analyzed by scientific instruments.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Rock Abrasion Tool canonical | 5 |
| 2.5 Grit | 1 |
| Rock Abrasion Tool (RAT) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T4885711 — 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: Rock Abrasion Tool Context triple: [Spirit, instrument, Rock Abrasion Tool]
-
A.
Spin Drill
Spin Drill is a power-up item in Super Mario Galaxy 2 that lets Mario burrow through planets and surfaces to emerge on the other side.
-
B.
Fogel Grip
Fogel Grip was one of the two Swedish ships that carried the first settlers to establish the New Sweden colony in North America in the 17th century.
-
C.
Cutter
Cutter is a key supporting character in the film "The Prestige," serving as an experienced stage engineer who designs illusions and becomes entangled in the rivalry between two magicians.
-
D.
Cutter
Cutter is the named petitioner in the U.S. Supreme Court case Cutter v. Wilkinson, which addressed the religious rights of prison inmates under federal law.
-
E.
Burin
Burin is a small coastal town on the Burin Peninsula in Newfoundland and Labrador, Canada, historically known for its fishing industry and maritime heritage.
- 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: Rock Abrasion Tool Target entity description: The Rock Abrasion Tool is a grinding device on NASA’s Mars rovers used to remove surface layers from Martian rocks so their fresh interiors can be analyzed by scientific instruments.
-
A.
Spin Drill
Spin Drill is a power-up item in Super Mario Galaxy 2 that lets Mario burrow through planets and surfaces to emerge on the other side.
-
B.
Fogel Grip
Fogel Grip was one of the two Swedish ships that carried the first settlers to establish the New Sweden colony in North America in the 17th century.
-
C.
Cutter
Cutter is a key supporting character in the film "The Prestige," serving as an experienced stage engineer who designs illusions and becomes entangled in the rivalry between two magicians.
-
D.
Cutter
Cutter is the named petitioner in the U.S. Supreme Court case Cutter v. Wilkinson, which addressed the religious rights of prison inmates under federal law.
-
E.
Burin
Burin is a small coastal town on the Burin Peninsula in Newfoundland and Labrador, Canada, historically known for its fishing industry and maritime heritage.
- F. None of above. chosen
Statements (40)
| Predicate | Object |
|---|---|
| instanceOf |
Mars rover instrument
ⓘ
grinding device ⓘ planetary science instrument ⓘ scientific instrument ⓘ |
| allows | access to unweathered rock material ⓘ |
| alsoKnownAs | RAT ⓘ |
| associatedWithProgram |
NASA Mars Exploration Program
ⓘ
linked to:
Mars Exploration Program
|
| capability | to grind several millimeters into rock surfaces ⓘ |
| category |
Mars surface exploration equipment
ⓘ
spacecraft hardware ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| designedBy | Honeybee Robotics ⓘ |
| designedFor | harsh Martian environmental conditions ⓘ |
| developedForMission | Mars Exploration Rover mission ⓘ |
| enables |
in-situ geochemical analysis of Martian rocks
ⓘ
microscopic imaging of fresh rock surfaces ⓘ |
| environment | Martian surface ⓘ |
| field |
astrogeology
ⓘ
planetary geology ⓘ |
| firstUsedIn | 2004 ⓘ |
| function |
to brush and clean rock targets
ⓘ
to grind away outer rock surfaces ⓘ |
| missionRole | sample preparation tool ⓘ |
| mountedOn | robotic arm ⓘ |
| operatedBy | NASA ⓘ |
| operationalMode | remote controlled from Earth ⓘ |
| partOf | instrument suite on Mars Exploration Rovers ⓘ |
| purpose |
to expose fresh rock interiors for analysis
ⓘ
to remove surface layers from Martian rocks ⓘ |
| spaceAgency |
NASA Jet Propulsion Laboratory
ⓘ
linked to:
Jet Propulsion Laboratory
|
| status | retired from active use with end of Spirit and Opportunity missions ⓘ |
| testedOn | terrestrial rock analogs ⓘ |
| usedOn |
Mars Exploration Rover Opportunity
ⓘ
linked to:
Opportunity rover
Mars Exploration Rover Spirit ⓘ
linked to:
Spirit rover
|
| usedOnBody | Mars ⓘ |
| usedWith |
Alpha Particle X-ray Spectrometer
ⓘ
linked to:
APXS (Alpha Particle X-ray Spectrometer)
Microscopic Imager ⓘ Mössbauer spectrometer ⓘ
linked to:
Mössbauer Spectrometer
|
| uses |
abrasive pads
ⓘ
rotating grinding heads ⓘ |
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: Rock Abrasion Tool Description of subject: The Rock Abrasion Tool is a grinding device on NASA’s Mars rovers used to remove surface layers from Martian rocks so their fresh interiors can be analyzed by scientific instruments.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject linked to:
Spirit rover
subject linked to:
Opportunity rover
linked to: Rock Abrasion Tool
linked to: Rock Abrasion Tool