Lunar Atmospheric Composition Experiment
E239140
The Lunar Atmospheric Composition Experiment was a scientific instrument deployed during the Apollo 17 mission to measure and analyze the extremely tenuous lunar atmosphere.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Lunar Atmospheric Composition Experiment canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T2169257 — 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: Lunar Atmospheric Composition Experiment Context triple: [Apollo 17, notableExperiment, Lunar Atmospheric Composition Experiment]
-
A.
SLIM lunar lander
The SLIM lunar lander is a Japanese spacecraft designed by JAXA to demonstrate high-precision, lightweight landing technology on the Moon’s surface.
-
B.
Luna 11
Luna 11 was a Soviet unmanned spacecraft from the Luna program, launched in 1966 to study the Moon from lunar orbit.
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C.
Luna 10
Luna 10 was a Soviet spacecraft that became the first artificial satellite to orbit the Moon, marking a major milestone in early lunar exploration.
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D.
Earth Resources Experiment Package
The Earth Resources Experiment Package was a suite of remote-sensing instruments flown on NASA’s Skylab space station to study Earth’s land, oceans, and atmosphere for resource and environmental monitoring.
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E.
Chandra’s Surface Thermophysical Experiment
Chandra’s Surface Thermophysical Experiment is a scientific instrument on India’s Chandrayaan-2 lunar mission designed to study the Moon’s surface temperature and thermal properties.
- 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: Lunar Atmospheric Composition Experiment Target entity description: The Lunar Atmospheric Composition Experiment was a scientific instrument deployed during the Apollo 17 mission to measure and analyze the extremely tenuous lunar atmosphere.
-
A.
SLIM lunar lander
The SLIM lunar lander is a Japanese spacecraft designed by JAXA to demonstrate high-precision, lightweight landing technology on the Moon’s surface.
-
B.
Luna 11
Luna 11 was a Soviet unmanned spacecraft from the Luna program, launched in 1966 to study the Moon from lunar orbit.
-
C.
Luna 10
Luna 10 was a Soviet spacecraft that became the first artificial satellite to orbit the Moon, marking a major milestone in early lunar exploration.
-
D.
Earth Resources Experiment Package
The Earth Resources Experiment Package was a suite of remote-sensing instruments flown on NASA’s Skylab space station to study Earth’s land, oceans, and atmosphere for resource and environmental monitoring.
-
E.
Chandra’s Surface Thermophysical Experiment
Chandra’s Surface Thermophysical Experiment is a scientific instrument on India’s Chandrayaan-2 lunar mission designed to study the Moon’s surface temperature and thermal properties.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
lunar surface experiment
ⓘ
mass spectrometer ⓘ scientific instrument ⓘ |
| abbreviation | LACE ⓘ |
| countryOfOrigin |
United States
ⓘ
linked to:
United States of America
|
| dataType |
neutral gas mass spectra
ⓘ
partial pressures of atmospheric constituents ⓘ |
| deployedBy |
Eugene Cernan
ⓘ
Harrison Schmitt ⓘ
linked to:
Harrison H. Schmitt
|
| deploymentBody | Moon ⓘ |
| deploymentSite | Taurus–Littrow valley ⓘ |
| designedToOperateDuring | extended period after crew departure ⓘ |
| landingDate | 1972-12-11 ⓘ |
| landingMission | Apollo 17 ⓘ |
| lastHumanVisitToSite | 1972-12-14 ⓘ |
| launchDate | 1972-12-07 ⓘ |
| launchVehicle | Saturn V ⓘ |
| location |
Taurus–Littrow ALSEP site
ⓘ
linked to:
Taurus–Littrow valley
|
| mass | on the order of several kilograms ⓘ |
| measuredSpecies |
argon
ⓘ
helium ⓘ hydrogen ⓘ neon ⓘ other neutral gases ⓘ |
| measurementTechnique | mass spectrometry ⓘ |
| missionNumber | Apollo 17 ⓘ |
| missionPhase |
Apollo 17 surface operations
ⓘ
linked to:
Apollo 17
|
| notableFinding |
confirmation of extremely low lunar atmospheric density
ⓘ
detection of argon-40 in the lunar atmosphere ⓘ evidence for radiogenic origin of some lunar atmospheric argon ⓘ |
| operatedOn | Moon ⓘ |
| operationalEnvironment | lunar night and day cycles ⓘ |
| operator | NASA ⓘ |
| partOf |
Apollo 17 mission
ⓘ
linked to:
Apollo 17
Apollo Lunar Surface Experiments Package ⓘ |
| powerSource | Apollo Lunar Surface Experiments Package power system ⓘ |
| primaryObjective |
measure composition of the lunar atmosphere
ⓘ
measure density of the lunar atmosphere ⓘ study temporal variations of the lunar atmosphere ⓘ |
| relatedExperiment |
Lunar Ejecta and Meteorites experiment
ⓘ
Lunar Seismic Profiling Experiment ⓘ Lunar Surface Gravimeter ⓘ |
| scientificDiscipline |
atmospheric science
ⓘ
planetary science ⓘ |
| spaceProgram | Apollo program ⓘ |
| status | inactive ⓘ |
| studiedProperty | tenuous lunar exosphere ⓘ |
| targetBody | Moon ⓘ |
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: Lunar Atmospheric Composition Experiment Description of subject: The Lunar Atmospheric Composition Experiment was a scientific instrument deployed during the Apollo 17 mission to measure and analyze the extremely tenuous lunar atmosphere.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.