Common Astronomy Software Applications

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

6.7.5 Release

CASA 6.7.5 can now be downloaded for general use. CASA 6.7.5 is available either as a downloadable tar-file, or through pip-wheel installation, which gives flexibility to integrate CASA into a customized Python environment.

Highlights:

• MacOS 26: support for MacOS 26 was added.

• pccor: new task for pulse delay calibration.

• ft: extended list of data selection parameters.

• fringefit: performance has been improved with speedup of FFT stage.

• sdcal: generates fully flagged calibration solution when OFF_SOURCE data are invalid.

• importasdm: added support for additional optional ASDM columns.

In addition, a large number of bugs were fixed.

CASA is being developed by an international consortium of scientists and software engineers based at the National Radio Astronomical Observatory (NRAO), the European Southern Observatory (ESO), the National Astronomical Observatory of Japan (NAOJ), and the Joint Institute for VLBI European Research Infrastructure Consortium (JIVE), under the guidance of NRAO.