Atacama Compact Array
E176201
The Atacama Compact Array is a subset of smaller, closely spaced radio telescopes within the ALMA observatory designed to improve imaging of extended astronomical objects at millimeter and submillimeter wavelengths.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Atacama Compact Array canonical | 4 |
| ALMA Atacama Compact Array | 2 |
| ALMA total power antennas | 1 |
| main ALMA 12-meter array | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T1541318 — 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: Atacama Compact Array Context triple: [Atacama Large Millimeter/submillimeter Array, hasComponent, Atacama Compact Array]
-
A.
Atacama Large Millimeter/submillimeter Array
The Atacama Large Millimeter/submillimeter Array is a powerful astronomical observatory composed of dozens of radio antennas that study the cold universe—such as star and planet formation—by observing millimeter and submillimeter wavelengths.
-
B.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
-
C.
Submillimeter Array
The Submillimeter Array is a radio interferometer of eight 6-meter telescopes that observes the universe at submillimeter wavelengths, enabling high-resolution studies of cold gas, dust, and star-forming regions in space.
-
D.
Gemini South Observatory
Gemini South Observatory is a major 8.1-meter optical and infrared telescope facility located on Cerro Pachón in Chile, forming the southern half of the international Gemini Observatory.
-
E.
Very Large Array (VLA) Radio Telescope
The Very Large Array (VLA) Radio Telescope is a world-renowned radio astronomy observatory in New Mexico, consisting of 27 large dish antennas arranged in a Y-shaped configuration to study distant cosmic phenomena.
- 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: Atacama Compact Array Target entity description: The Atacama Compact Array is a subset of smaller, closely spaced radio telescopes within the ALMA observatory designed to improve imaging of extended astronomical objects at millimeter and submillimeter wavelengths.
-
A.
Atacama Large Millimeter/submillimeter Array
The Atacama Large Millimeter/submillimeter Array is a powerful astronomical observatory composed of dozens of radio antennas that study the cold universe—such as star and planet formation—by observing millimeter and submillimeter wavelengths.
-
B.
Allen Telescope Array
The Allen Telescope Array is a large, multi-dish radio telescope facility in California designed primarily for simultaneous radio astronomy and the search for extraterrestrial intelligence.
-
C.
Submillimeter Array
The Submillimeter Array is a radio interferometer of eight 6-meter telescopes that observes the universe at submillimeter wavelengths, enabling high-resolution studies of cold gas, dust, and star-forming regions in space.
-
D.
Gemini South Observatory
Gemini South Observatory is a major 8.1-meter optical and infrared telescope facility located on Cerro Pachón in Chile, forming the southern half of the international Gemini Observatory.
-
E.
Very Large Array (VLA) Radio Telescope
The Very Large Array (VLA) Radio Telescope is a world-renowned radio astronomy observatory in New Mexico, consisting of 27 large dish antennas arranged in a Y-shaped configuration to study distant cosmic phenomena.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
astronomical observatory instrument
ⓘ
radio telescope array ⓘ |
| alsoKnownAs | Morita Array ⓘ |
| altitude | about 5000 meters ⓘ |
| antennaDiameter |
12 meters
ⓘ
7 meters ⓘ |
| baselineLength | short baselines ⓘ |
| configuration | compact ⓘ |
| constructionPartner |
East Asian ALMA Regional Center
ⓘ
linked to:
East Asian Observatory
Japan ⓘ |
| country | Chile ⓘ |
| dataCombination | used together with main ALMA array data ⓘ |
| dataType | interferometric visibilities ⓘ |
| designedBy |
National Astronomical Observatory of Japan
ⓘ
linked to:
NAOJ
|
| environment | high-altitude desert ⓘ |
| feature |
closely spaced antennas
ⓘ
optimized for extended emission ⓘ part of ALMA interferometric system ⓘ |
| frequencyRange | approximately 30–950 GHz ⓘ |
| fundedBy |
European Southern Observatory
ⓘ
National Astronomical Observatory of Japan ⓘ
linked to:
NAOJ
National Radio Astronomy Observatory ⓘ |
| imagingCapability | sensitive to large angular scales ⓘ |
| locatedAt | Chajnantor Plateau ⓘ |
| locatedIn | Atacama Desert ⓘ |
| numberOfAntennas |
16 12-meter antennas
ⓘ
4 7-meter antennas ⓘ |
| observatory |
ALMA
ⓘ
linked to:
Atacama Large Millimeter/submillimeter Array
|
| operator |
Atacama Large Millimeter/submillimeter Array Observatory
ⓘ
linked to:
Atacama Large Millimeter/submillimeter Array
Joint ALMA Observatory ⓘ |
| partOf | Atacama Large Millimeter/submillimeter Array ⓘ |
| primaryScienceUse |
study of molecular clouds
ⓘ
study of nearby galaxies ⓘ study of protoplanetary disks ⓘ |
| purpose |
complement main ALMA 12-meter array
ⓘ
improve imaging of extended astronomical objects ⓘ provide short-baseline interferometric data ⓘ |
| scienceBandCoverage | ALMA bands in millimeter and submillimeter regime ⓘ |
| scienceGoal |
high-fidelity imaging of diffuse emission
ⓘ
improve uv-coverage at short spacings ⓘ |
| shortName | ACA ⓘ |
| startOfOperations | early 2010s ⓘ |
| telescopeType |
interferometric array
ⓘ
radio telescope ⓘ |
| wavelengthRange |
millimeter
ⓘ
submillimeter ⓘ |
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: Atacama Compact Array Description of subject: The Atacama Compact Array is a subset of smaller, closely spaced radio telescopes within the ALMA observatory designed to improve imaging of extended astronomical objects at millimeter and submillimeter wavelengths.
Referenced by (8)
Full triples — surface form annotated when it differs from this entity's canonical label.