Todd crater
E491027
Todd crater is a named impact crater on Phobos, the larger and innermost moon of Mars.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Todd crater canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5051067 — 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: Todd crater Context triple: [Phobos, hasNotableCrater, Todd crater]
-
A.
Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
-
B.
Aliamanu Crater
Aliamanu Crater is a tuff cone and volcanic crater on the island of Oʻahu in Hawaii, located inland near Honolulu and now largely surrounded by urban development and military housing.
-
C.
Sherman Crater
Sherman Crater is a prominent volcanic crater on the south side of Mount Baker in Washington State, known for its active fumaroles and role in monitoring the volcano’s geothermal and eruptive activity.
-
D.
Eagle Crater
Eagle Crater is a small impact crater on Mars that gained prominence as the landing site and initial exploration area of NASA’s Opportunity rover.
-
E.
El Elegante crater
El Elegante crater is a large, nearly circular maar volcanic crater in the Pinacate volcanic field of northwestern Mexico, noted for its dramatic rim and desert landscape.
- 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: Todd crater Target entity description: Todd crater is a named impact crater on Phobos, the larger and innermost moon of Mars.
-
A.
Occator Crater
Occator Crater is a prominent impact crater on the dwarf planet Ceres, best known for its bright salt deposits that suggest past subsurface brine activity.
-
B.
Aliamanu Crater
Aliamanu Crater is a tuff cone and volcanic crater on the island of Oʻahu in Hawaii, located inland near Honolulu and now largely surrounded by urban development and military housing.
-
C.
Sherman Crater
Sherman Crater is a prominent volcanic crater on the south side of Mount Baker in Washington State, known for its active fumaroles and role in monitoring the volcano’s geothermal and eruptive activity.
-
D.
Eagle Crater
Eagle Crater is a small impact crater on Mars that gained prominence as the landing site and initial exploration area of NASA’s Opportunity rover.
-
E.
El Elegante crater
El Elegante crater is a large, nearly circular maar volcanic crater in the Pinacate volcanic field of northwestern Mexico, noted for its dramatic rim and desert landscape.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
impact crater
ⓘ
surface feature on Phobos ⓘ |
| belongsTo | Phobos surface features ⓘ |
| belongsToCategory |
Craters on Phobos
ⓘ
Impact craters of the Solar System ⓘ |
| celestialBodyType | crater ⓘ |
| coordinateSystem | Phobos body-fixed coordinate system ⓘ |
| featureType | impact crater ⓘ |
| hasNameStatus | officially named ⓘ |
| inOrbitAround | Sun (indirectly via Mars) ⓘ |
| isOnInnermostMoonOf | Mars ⓘ |
| isOnLargerMoonOf | Mars ⓘ |
| isOnMoon | Phobos ⓘ |
| locatedIn | Mars system ⓘ |
| locatedOn | Phobos ⓘ |
| namedAfter | Todd (person) ⓘ |
| namedFeatureOf | Phobos ⓘ |
| observedBy | Mars-orbiting spacecraft ⓘ |
| observedIn | spacecraft imaging of Phobos ⓘ |
| orbitsPrimary | Mars ⓘ |
| orbitsWith | Phobos ⓘ |
| parentBody | Phobos ⓘ |
| partOf |
Martian moon system
ⓘ
surface of Phobos ⓘ |
| solarSystemBody | Phobos ⓘ |
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: Todd crater Description of subject: Todd crater is a named impact crater on Phobos, the larger and innermost moon of Mars.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.