Facilities > VLA > Data Processing > Analysis Packages > Analysis Packages

Analysis Packages

by Emmanuel Momjian last modified Aug 04, 2017
The two main analysis packages used for the processing of VLA data are AIPS and CASA.


Common Astronomy Software Applications (CASA) package is a set of C++ tools bundled together under an iPython interface as a set of data reduction tasks. The CASA collaboration is led by the National Radio Astronomy Obsevatory, with the primary goal of supporting the data post-processing needs of ALMA and the VLA. The CASA tasks are oriented towards end-user data processing and analysis, while the toolkit is geared towards the support of algorithm development and the construction of tasks.


The Astronomical Image Processing System is a software package from the National Radio Astronomy Observatory that is used for calibration, data analysis, imaging, image display, plotting, and a variety of ancillary tasks on astronomical data (primarily radio data). Strategies for VLA data reduction using AIPS can be found in the AIPS CookBook.