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Knowledgebase: General ALMA Queries
What is the Atacama Compact Array (ACA)?
Posted by Akiko Kawamura, Last modified by Tristan Ashton on 23 September 2020 08:38 PM

The Atacama Compact Array (ACA), also known as the Morita Array, is composed of twelve closely spaced 7-meter antennas (7-m Array), and four 12-meter antennas for single dish observations (Total Power Array).  The array is designed to enhance wide-field imaging in full ALMA operations.  See Section 2.3 "The Atacama Compact Array" of the ALMA Technical Handbook for more information.

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