Difference between revisions of "Contributed CASA Tasks and Scripts"

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* <big> '''[[Analysis Utilities | Analysis Utilities (python module)]]'''</big> --- A Python module containing utilities for analysis and plotting, including:
 
* <big> '''[[Analysis Utilities | Analysis Utilities (python module)]]'''</big> --- A Python module containing utilities for analysis and plotting, including:
 
** [[Plotbandpass]] --- a faster version of plotcal for bandpass tables, with useful overlay capabilities
 
** [[Plotbandpass]] --- a faster version of plotcal for bandpass tables, with useful overlay capabilities
 +
** [[EditIntents]] --- change the intents for a specified field in an ms
 +
** [[getBaselineLengths]] --- returns a dictionary of the baseline lengths in your ms, by default sorted by length
 +
** [[lstrange]] --- lists the range of LST, UT, MJD for the whole ms, and for scans with OBSERVE_TARGET intent (including the elevation range)
 +
** [[obslist]] --- prints the antenna station coordinates in local offsets from the Center of Array, and computes longest/shortest baselines
 +
** [[planet]] --- contacts the JPL Horizons telnet service and returns the J2000 position, velocity, angular diameter, range and range rate of a solar system object
 +
** [[plotconfig]] --- plot any standard telescope configuration of observatories known to casa, and return an array of the sorted baseline lengths
 +
** [[plotmosaic]] --- shows relative location of pointings in an .ms
 +
** [[plotPWV]] --- reads the PWV from each antenna's WVR from the ASDM_CALWVR table in an ms, and creates a plot vs. time
 +
** [[plotweather]] ---  plot weather conditions vs. time for your ms
 +
** [[plotWVRSolutions]] ---  plot the WVR solutions in terms of baseline-based phase corrections
 +
** [[smoothbandpass]] ---  smooths an existing bandpass table with options for window length and type
 
** [[Spectralindex]] --- performs a least-squares fit to the multi-spw output from fluxscale  
 
** [[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  
 
** [[TimeOnSource]] --- compute the total time spent integrating on-source for each specified field  

Revision as of 18:43, 20 August 2012

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
    • EditIntents --- change the intents for a specified field in an ms
    • getBaselineLengths --- returns a dictionary of the baseline lengths in your ms, by default sorted by length
    • lstrange --- lists the range of LST, UT, MJD for the whole ms, and for scans with OBSERVE_TARGET intent (including the elevation range)
    • obslist --- prints the antenna station coordinates in local offsets from the Center of Array, and computes longest/shortest baselines
    • planet --- contacts the JPL Horizons telnet service and returns the J2000 position, velocity, angular diameter, range and range rate of a solar system object
    • plotconfig --- plot any standard telescope configuration of observatories known to casa, and return an array of the sorted baseline lengths
    • plotmosaic --- shows relative location of pointings in an .ms
    • plotPWV --- reads the PWV from each antenna's WVR from the ASDM_CALWVR table in an ms, and creates a plot vs. time
    • plotweather --- plot weather conditions vs. time for your ms
    • plotWVRSolutions --- plot the WVR solutions in terms of baseline-based phase corrections
    • smoothbandpass --- smooths an existing bandpass table with options for window length and type
    • 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 --- This CASA task will find sources from VIZIER catalogs to place outlier fields on them for clean
  • listsdm --- A CASA task to list the contents of the SDM archive files
  • stitch --- 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 --- 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)
  • Transient Reduction pipeline --- Simple reduction of data taken in continuum mode to determine a flux density of an essentially unresolved or only partially resolved source