... APEX

APEX is a collaboration between the Max-Planck-Institut für Radioastronomie, the European Southern Observatory, and the Onsala Space Observatory.

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... telescope

For ALMA this functionality is currently under development but its time scale does not match with the APEX schedule and it will not support multi-beam array receivers.

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... SCPI

Standard Commands for Programmable Instrumentation, SCPI Consortium, http://www.scpiconsortium.org

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... CLASS

The Gildas software. http://www.iram.fr/IRAMFR/GILDAS

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... altitude

Operating hard disks at such a high altitude is technologically challenging due to the low air pressure that can lead to head crashes. APECS uses specially selected SCSI disks.

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