Notional examples of Calibration, Flagging and Imaging are provided to illustrate future design and implementation direction.

The CNGI prototype documentation contains Visibility and Image overview sections that describe a selection of core mathematics, manipulation, middleware and analysis functions to demonstrate the simplicity and scalability of the technology choices. Its primary purpose is to showcase new data structures for MeasurementSet and Image contents built entirely in Python atop the popular technology stack of numpy, dask, and xarray. This CASA Next Generation Infrastructure (CNGI) prototype package is a demonstration of the current state of our research efforts. The CASA team has begun exploring options for a new generation of software to meet the growing demands of current and future radio telescopes. flagdata: improvements and bug fixes were implemented.

importasdm/exportasdm: parameters 'showversion' and 'useversion' have been removed.

T+dT timerange selection improved in accuracy.

sdintimaging: now adds information to the history of produced images.

caltables: storage of frequency meta information improved.

imhead: updated to display micro-arcsecond precision.

fringefit: memory usage has been reduced, allowing larger datasets to be processed.

gencal: a new caltype parameter 'jyperk' has been added.

tclean: now handles mixed polarization setups.

plotms: calibration table averaging with channel selection is now supported.

plotcal/plotms: funtionality for plotcal has been migrated to plotms, and plotcal was deprecated.

OS Support: RedHat 8 and Mac OS with Python 3.8, for monolithic and modular versions.

The CASA software can process data from both single-dish and aperture-synthesis telescopes, and one of its core functionalities is to support the data reduction and imaging pipelines for ALMA, VLA and the VLA Sky Survey ( VLASS).

Jansky Very Large Array ( VLA), and is frequently used also for other radio telescopes. CASA, the Common Astronomy Software Applications package, is the primary data processing software for the Atacama Large Millimeter/submillimeter Array ( ALMA) and NSF's Karl G.

Casa software reset