Release Notes CASA 4.3.1

CASA 4.3.1 is a patch to CASA 4.3.0. This patch contains important bugfixes which affect setjy and the import of SDM data. The issue with setjy affects the application of flux model images as is common in the reduction of VLA data. The error resulted in the flux not being correctly set for channels outside the definition of the model image. A second, much rarer, issue that affects heavily flagged spectral windows (only a single unflagged channel) has also been corrected. The error handling in the translation of SDM data to MS was modified in the 4.3 release, with the inadvertent side effect that it became more pedantic and refused to handle certain mal-formed SDMS. The error handling has been reverted to it's more permissive form in 4.3.1. The main feature improvements of CASA 4.3.0 are listed below.

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Note that in its current incarnation CASA is designed to support ALMA, and VLA data, as well as single dish data from ALMA and Nobeyama. Data from other telescopes, be it single dish or interferometers can be imported from uvfits, FITS-IDI , or sdfits formats into measurements sets (ms) or scantables in CASA. Given the variety of non-standard fits formats, we cannot guarantee that CASA will fully support data from all telescopes. However, efforts are made to support data formats from other facilities.

Obtaining the CASA Release

This version of CASA is available from our Download page. There, we also list the supported operating systems.

CASA Release Notes:

Valid for CASA Release 4.3.0 and later: Major improvements over the previous version of CASA include:

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