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Data Processing

$The primary data reduction package for the VLA is the CASA (Common Astronomy Software Applications) package, which is also used for ALMA. See http://casa.nrao.edu for more information on the latest release.$

$NRAO will continue to support AIPS (Astronomical Image Processing System) for the foreseeable future, at least until VLBI functionality has been incorporated into CASA. See http://www.aips.nrao.edu for more details.$

$It is possible to reduce data obtained through the Open Shared Risk Observing programs during semesters 2010A through 2012B using either CASA or AIPS. More complex correlator set-ups are generally better handled by CASA, and advanced imaging algorithms are available in CASA. The VLA data reduction pipeline will use CASA.$

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Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.

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The National Radio Astronomy Observatory and Green Bank Observatory are facilities of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.