ACA
E665894
ACA is a subset of the Atacama Large Millimeter/submillimeter Array (ALMA) consisting of closely spaced radio telescopes designed to improve imaging of extended astronomical objects.
All labels observed (1)
| Label | Occurrences |
|---|---|
| ACA canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7459213 — 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: ACA Context triple: [Atacama Compact Array, shortName, ACA]
-
A.
ACA
ACA is the common abbreviation for the Affordable Care Act, a major U.S. health care reform law enacted in 2010 to expand insurance coverage and consumer protections.
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B.
ACA
ACA is the three-letter ICAO airline designator used to identify Air Canada in international aviation operations and communications.
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C.
ACA
ACA is a professional scientific organization that promotes the study and application of crystallography and structural science, primarily in North America.
-
D.
AAC
AAC is the common abbreviation for Associação Académica de Coimbra, a historic Portuguese students' association and multi-sport club based in Coimbra.
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E.
AAC
AAC is the abbreviation commonly used for the Australian Army Cadets, a national youth development organization supported by the Australian Army.
- 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: ACA Target entity description: ACA is a subset of the Atacama Large Millimeter/submillimeter Array (ALMA) consisting of closely spaced radio telescopes designed to improve imaging of extended astronomical objects.
-
A.
ACA
ACA is a professional scientific organization that promotes the study and application of crystallography and structural science, primarily in North America.
-
B.
ACA
ACA is the common abbreviation for the Affordable Care Act, a major U.S. health care reform law enacted in 2010 to expand insurance coverage and consumer protections.
-
C.
ACA
ACA is the three-letter ICAO airline designator used to identify Air Canada in international aviation operations and communications.
-
D.
AAC
AAC is the common abbreviation for Associação Académica de Coimbra, a historic Portuguese students' association and multi-sport club based in Coimbra.
-
E.
AAC
AAC is the abbreviation commonly used for the Australian Army Cadets, a national youth development organization supported by the Australian Army.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
radio telescope array
ⓘ
subset of ALMA ⓘ |
| acronymFor | Atacama Compact Array ⓘ |
| contributesTo |
ALMA imaging fidelity
ⓘ
recovery of short-spacing information ⓘ |
| country | Chile ⓘ |
| dataCombinedWith | main ALMA array visibilities ⓘ |
| designedFor |
imaging extended astronomical objects
ⓘ
improving sensitivity to large-scale structures ⓘ |
| fullName | Atacama Compact Array ⓘ |
| fundedBy |
East Asia
ⓘ
Europe ⓘ North America ⓘ Republic of Chile ⓘ
linked to:
Chile
|
| hasAntennaDiameter |
12 meters
ⓘ
7 meters ⓘ |
| hasAntennaType | parabolic dish antenna ⓘ |
| hasBaselineType | short baselines ⓘ |
| hasComponent |
12-meter total power antennas
ⓘ
7-meter antenna array ⓘ |
| hasConfiguration | compact configuration ⓘ |
| hasScienceBand |
ALMA Band 3
ⓘ
ALMA Band 4 ⓘ ALMA Band 6 ⓘ ALMA Band 7 ⓘ |
| improves |
imaging of diffuse emission
ⓘ
surface brightness sensitivity ⓘ |
| locatedAt | Llano de Chajnantor Observatory ⓘ |
| locatedAtAltitude | about 5000 meters ⓘ |
| locatedIn |
Atacama Desert
ⓘ
Chile ⓘ |
| managedBy |
European Southern Observatory
ⓘ
National Astronomical Observatory of Japan ⓘ
linked to:
NAOJ
National Radio Astronomy Observatory ⓘ |
| observatoryType | radio observatory array ⓘ |
| observes |
millimeter wavelengths
ⓘ
submillimeter wavelengths ⓘ |
| operatedBy |
ALMA Observatory
ⓘ
linked to:
Atacama Large Millimeter/submillimeter Array
|
| partOf | Atacama Large Millimeter/submillimeter Array ⓘ |
| partOfProject |
international ALMA collaboration
ⓘ
linked to:
Joint ALMA Observatory
|
| scienceGoal |
study of molecular clouds
ⓘ
study of nearby galaxies ⓘ study of protoplanetary disks ⓘ study of star-forming regions ⓘ |
| telescopeType | radio telescope ⓘ |
| usedWith |
main ALMA 12-meter array
ⓘ
linked to:
Atacama Compact Array
|
| uses | radio interferometry ⓘ |
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: ACA Description of subject: ACA is a subset of the Atacama Large Millimeter/submillimeter Array (ALMA) consisting of closely spaced radio telescopes designed to improve imaging of extended astronomical objects.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.