Contributed CASA Tasks and Scripts

CASA User-contributed Tasks

CASA Contributed Tasks: Overview --- Learn how to use contributed CASA tasks

How to write your own CASA task

• Analysis Utilities (python module) --- A Python module containing utilities for analysis and plotting, including:
  • Plotbandpass --- a faster version of plotcal for bandpass tables, with useful overlay capabilities
  • Spectralindex --- performs a least-squares fit to the multi-spw output from fluxscale
  • TimeOnSource --- compute the total time spent integrating on-source for each specified field

• findsources (task) --- This CASA task will find sources from VIZIER catalogs to place outlier fields on them for clean

• listsdm (task) --- A CASA task to list the contents of the SDM archive files

• stitch (task) --- A CASA task that replaces some channels of a spectral with those of a second spectral window. This is useful, e.g., to remove the 128MHz "suckout" frequency ranges and replace them with channels from a slightly frequency-shifted second baseband

• makeschedule (task) --- A CASA Task to create complete schedules for JVLA observations that can be imported as a scan lists into the OPT, including initial setup, observations of flux and banpass calibrators, pointing scans, and phase calibrators.

CASA User-contributed Scripts

• plotWX --- Plot the weather conditions and calculate the opacity for each spectral window (EVLA)

• Align Cubes by Velocity --- A script that will align two data cubes along their velocity axes

• Mosaicking Utilities --- A few utilities to help setting up and reducing mosaicking observations

• Transient Reduction pipeline (script) --- Simple reduction of data taken in continuum mode to determine a flux density of an essentially unresolved or only partially resolved source