This is the number of ALMA antennas that have completed Assembly, Integration and Verification at the Operations Support Facility (OSF) at 2,900 meters altitude, and then been transported to the 5,000 meter high Array Operations Site (AOS) on the Chajnantor plateau. The number of antennas presently at the AOS is lower than this number, as antennas are brought back down to the OSF when necessary for repairs and for regular maintenance.
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About ALMA Acronyms
A
ACA
Atacama Compact Array (Array composed of 16 antennas)
AIVC
Assembly, Integration, Verification and Commissioning
ALMA
Atacama Large Millimeter/submillimeter Array
AMAC
ALMA Management Advisory Committee
ANASAC
ALMA North American Scientific Advisory Committee
AOS
Array Operations Site (located at an altitude of 5,000 meters)
ARC
ALMA Regional Centre
ASAC
ALMA Scientific Advisory Committee
ATF
ALMA Test Facility in Socorro, New Mexico, USA
AUI
Associated Universities, Inc.
E
EASAC
ALMA East Asian Scientific Advisory Committee
ESAC
European Scientific Advisory Committee
ESO
European Southern Observatory
I
IPT
Integrated Product Team
J
JAO
Joint ALMA Observatory
N
NAOJ
National Astronomical Observatory of Japan
NINS
National Institutes of Natural Sciences
NRAO
National Radio Astronomy Observatory
NSF
National Science Foundation of the USA
O
OSF
Operations Support Facility (located at an altitude of 2,900 meters)
About ALMA Acronyms
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AACAAtacama Compact Array (Array composed of 16 antennas)AIVCAssembly, Integration, Verification and Commissioning ALMAAtacama Large Millimeter/submillimeter ArrayAMACALMA Management Advisory Committee ANASACALMA North American Scientific Advisory CommitteeAOSArray Operations Site (located at an altitude of 5,000 meters) ARCALMA Regional Centre ASACALMA Scientific Advisory CommitteeATFALMA Test Facility in Socorro, New Mexico, USAAUIAssociated Universities, Inc.EEASACALMA East Asian Scientific Advisory CommitteeESACEuropean Scientific Advisory CommitteeESOEuropean Southern Observatory IIPTIntegrated Product Team JJAOJoint ALMA Observatory NNAOJNational Astronomical Observatory of Japan NINSNational Institutes of Natural SciencesNRAONational Radio Astronomy Observatory NSFNational Science Foundation of the USA OOSFOperations Support Facility (located at an altitude of 2,900 meters) 