CASA, the Common Astronomy Software Applications for Radio Astronomy

Abstract CASA, the Common Astronomy Software Applications, is primary data processing software for Atacama Large Millimeter/submillimeter Array (ALMA) and Karl G. Jansky Very (VLA), frequently used also other radio telescopes. The CASA can handle from single-dish, aperture-synthesis, Long Baseline Interferometery (VLBI) One of its core functionalities to support calibration imaging pipelines ALMA, VLA, VLA Sky Survey, Nobeyama 45 m telescope. This paper presents a high-level overview basic structure software, as well procedures calibrating astronomical in CASA. being developed by an international consortium scientists engineers based at National Radio Observatory (NRAO), European Southern Observatory, Astronomical Japan, Joint Institute VLBI Research Infrastructure Consortium (JIV-ERIC), under guidance NRAO.