Latest CASA Release: 6.5*• CASA paper: "CASA, the Common Astronomy Software Applications for Radio Astronomy", PASP, 134, 114501 • Modular CASA: separate python wheels for casafeather, casabrowser and casalogger GUIs. • Modular CASA: the CASA6 build system has been refactored to improve modularity within the code base, to better streamline dependency management, and to support future development and deployment requirements. • deconvolve: new task for image-domain deconvolution. • mvuvbin: new experimental task to save a measurement set as a UV grid. • uvcontsub: new implementation, old uvcontsub task deprecated. • setjy: updated VLA flux calibrator model images at C, X and Ka bands; will catch unreasonable input spectral index. • fringefit: support for ‘uvrange’ and 'corrcomb' parameters; new functionality 'concatspw' or combine='spw'. • fringefit: updated to allow the use of the cal library to apply pre-calibration. • table tool: new table tool method tb.getcoliter(), for iterator access to casacore tables. • applycal: handles calibration tables with fewer SPWs than the applying MS. • tclean: new iteration control parameter ‘nmajor’. • tclean: new parameter 'fullsummary' to avoid issues with large cubes and increased MPI records. • tclean: more stable cube imaging with 'awproject'; numerical fixes w-term correction 'awproject'. • simobserve support added for component lists having higher order spectral terms. • sdimaging: new parameter ‘enablecache’ for improved performance. • applycal: per scan interpolation. • mstransform: parameter ‘douvcontsub’ deprecated. • flagdata: mode=’shadow’ now uses the uvw values from the UVW column. • tclean/tsdimaging: performance improvements of about 10-16 percent, and improved runtime performance of ephemeris imaging. • tclean: corrections to the math implemented for the uvtaper weighting scheme. • simulator tool: new parameter ‘simint’ in sm.settrop() to control time granularity, down to 0.1s. • simulator tool: now works with primary beams and a component list with spectral structure. • imbaseline: new task for image-based baseline subtraction for single-dish data. • msmetadata tool: ALMA-specific methods 'rxband()' and 'subwindows()'. • corrbit(): new method in msmetadata tool for returning the value in SPECTRAL_WINDOW:: SDM_CORR_BIT column. • plotms: added support for additional axes of calibration tables. • setjy: parameter "modimage" removed (use parameter "model" instead). • tclean: return dictionary now includes additional information about the minor cycles. • Mac OS 12: bug fixed that prevented the OS 11/Python 3.6 package to open on Mac OS 12. • tclean: bug fixed that prevented UV taper to work with weighting=’natural’.
For details and more, see