CASA Tips: Difference between revisions

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{{Using CASA}}
[[Category: CASA Basics]]
= HINTS, TIPS & TRICKS =
== Getting Started ==
* [[What Version of CASA am I Running?]]
* [[Starting CASA Without the Logger]]
* [[New Startup Screen]]
* [[Accessing the Newest Version of CASA at NRAO]]
* [[Setting Up the Available Memory]]
* [[Capturing Return Values]]
* [[Interpreting CASA output]]
== Data Reduction ==
=== General ===
* [[Renaming a Field]]
* [[Renaming Antennas]]
* [[Selecting Spectral Windows and Channels]]
* [[What's the difference between Antenna1 and Antenna2? Axis definitions in plotms | Axis definitions in plotms]]
* [http://www.aoc.nrao.edu/~sbhatnag/misc/msselection/msselection.html General description of the data selection syntax]
* [[CASA Region Format]]
* [[CASA Region Format Examples]]  How to apply CASA regions to tasks and convert them for use with tools
* [[Creating lists of files for task input: using glob]]
=== Loading Data ===
* [[Measurement Set Contents]]
* [[Importing Data into CASA]]
* [[Loading and Running Tasks]]
* [[Averaging data in plotms]]
* [[Inspecting Data]]
=== Flagging ===
*[[Applying EVLA on-line flags]] What do to if you need to re-apply (or apply) your online flags, without re-downloading the entire MS
*[[Data flagging with plotms]]
*[[Data flagging with viewer]]
=== Calibration ===
* [[Combining Bandpasses]]
* [[Create a Component List for Selfcal]]
* [[Creating a Model for a Resolved Bandpass Calibrator]]
=== Imaging ===
* [http://www.aoc.nrao.edu/~rurvashi/ImagingAlgorithmsInCasa/ImagingAlgorithmsInCasa.html Description of Imaging Algorithms in CASA]
* [[Diverging deconvolution results in 'csclean' and 'mosaic' modes]]
* [[Create a Simulated Image]]
* [[Create a Clean Mask from Continuum Image or Moment Cube]]
=== Analysis ===
* [[How to rotate and slice a cube for pV diagrams]]
* [[Masking images for analysis]]
* [[Stacking Multiple Spectral Lines at Same Position]]
* [[Fit an arbitrary sky (image) model to an existing MS]] - including how to simulate visibilities that will have the same uv-coverage and weights as a given MS
* [[Fit a Gaussian to Visibility data and plot it over the data]]
== Miscellaneous==
=== Simulations ===
* [[Convert jpg to fits]]
* [[Antenna Configurations Models in CASA]]
=== How CASA Works ===
* [http://casa.nrao.edu/aips2_docs/notes/223/index.shtml Lattice Expression Language (LEL) as used, e.g. in ''immath'']
* [http://casa.nrao.edu/Memos/229.html Definition of a Measurement Set]
* [http://casa.nrao.edu/Memos/240.html Definition of a Calibration Table]
* [[CASA Parallel Processing]]
=== If CASA Doesn't Work ===
* [[Interpreting CASA output]]
* [[Updating the CASA Data Repository]]
* [[Waiting for read-lock on file]]
* [[CASA Error Messages]]
* [[Fixing out of date TAI_UTC tables (missing information on leap seconds)]]
=== Writing a CASA Task ===
* [[Writing a CASA Task]] Presents the basics of writing a CASA task, and provides examples of tasks that will be helpful and instructive.
* [[CASA User Scripts and Tasks | User-contributed Tasks]]
=== VLA ===
* [[Some Notes on VLA / EVLA gain curves and fluxscale]]
* [[VLA LST Calculator]]
== Bug Checking ==
* [[Check for the CASA Incremental Storage Manager Flagging Bug ]]
Also check out the step-by-step tutorials on this wiki!
[[Main Page | &#8629; '''CASAguides''']] <br>


<h1>'''CASA Tips'''</h1>
<h1>'''CASA Tips'''</h1>
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** <big> [http://casa.nrao.edu/mail_list.shtml CASA mailing lists] Please subscribe to receive information on releases, critical bugs, etc. </big>
** <big> [http://casa.nrao.edu/mail_list.shtml CASA mailing lists] Please subscribe to receive information on releases, critical bugs, etc. </big>
** <big> [[Installing CASA]] Where to obtain CASA, and how to install it in different operating systems </big>  
** <big> [[Installing CASA]] Where to obtain CASA, and how to install it in different operating systems </big>  
<!-- to be removed if noone complains :-)
** <big> Overviews </big>  
** <big> Overviews </big>  
*** [[Getting Started in CASA | Guide to CASA syntax, task execution, and scripting]]  
*** [[Getting Started in CASA | Guide to CASA syntax, task execution, and scripting]]  
*** [[What is CASA? | CASA calibration, imaging, and a description of basic tasks]]
*** [[What is CASA? | CASA calibration, imaging, and a description of basic tasks]]
*** [[PythonOverview | CASA Python Overview]] Includes basics of python, and guides to arrays and plotting
*** [[PythonOverview | CASA Python Overview]] Includes basics of python, and guides to arrays and plotting
-->


 
* <big> All CASA Tutorials </big>
* <big>CASA Documentation</big>
** <big> [https://casaguides.nrao.edu/index.php/ALMAguides ALMA]</big>
** <big> [http://casa.nrao.edu/docs/cookbook/ CASA Reference Manual & Cookbook HTML] and the [http://casa.nrao.edu/casa_cookbook.pdf  PDF Version] </big>
** <big> [https://casaguides.nrao.edu/index.php/Karl_G._Jansky_VLA_Tutorials Karl G. Jansky VLA]</big>
** <big> [http://casa.nrao.edu/docs/TaskRef/TaskRef.html CASA Task Reference] </big>
** <big> [https://casaguides.nrao.edu/index.php/ATCA_Tutorials ATCA]</big>  
** <big> [http://casa.nrao.edu/docs/CasaRef/CasaRef.html CASA Toolkit Manual] </big>
** <big> [https://casaguides.nrao.edu/index.php/Simulating_Observations_in_CASA_4.4 Simulations]</big>
** <big> [https://casaguides.nrao.edu/index.php/Pre-upgrade_VLA_Tutorials pre-upgrade VLA]</big>  
** <big> [https://casaguides.nrao.edu/index.php/SMA_Tutorials SMA]</big>
** <big> [https://casaguides.nrao.edu/index.php/CARMA_Tutorials CARMA]</big>  




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* <big> [[AIPS-to-CASA Cheat Sheet]] </big>
<!--
* <big> CASA Related Lectures </big>
** <big> [http://www.aoc.nrao.edu/events/synthesis/2016/lectures.shtml Lectures from the 2016 Synthesis Imaging Workshop] </big>
** <big> [https://science.nrao.edu/science/meetings/2016/vla-data-reduction Lectures from the 2016 VLA Data Reduction Workshop] </big>
** <big> [https://science.nrao.edu/facilities/alma/naasc-workshops/nrao-cd-drp/program Lectures from the NAASC/ALMA 2017 Data Reduction Workshop] </big>
-->  


 
* <big> Useful Links </big>
* <big> CASA Related Lectures </big>
** <big> [http://casa.nrao.edu CASA homepage] </big>
** <big> [http://www.aoc.nrao.edu/events/synthesis/2012/lectures.shtml Lectures from the most recent Synthesis Imaging Workshop (June 2012)] </big>
** <big> [http://casa.nrao.edu/docs/cookbook/ CASA Reference Manual & Cookbook] </big>
** <big> [https://science.nrao.edu/facilities/vla/early-science/DRW-spring2012/program Lectures from the EVLA spring 2012 Data Reduction Workshop] </big>
** <big> [http://my.nrao.edu my.nrao.edu - Your Portal to NRAO Services] </big>
** <big> [https://science.nrao.edu/facilities/alma/naasc-workshops/almadata/program Lectures from the NAASC/ALMA Dec. 2011 Data Reduction Workshop] </big>
** <big> [http://help.nrao.edu NRAO Helpdesk (for all inquiries except ALMA)] </big>
** <big> [http://help.almascience.org ALMA Helpdesk (for all ALMA related inquiries)] </big>
** <big> [http://science.nrao.edu/forums NRAO Science Forums] </big>
** <big> [http://docs.python.org/ Python Documentation] </big>
** <big> [http://www.splatalogue.net Splatalogue - Astronomical Line Database] </big>

Latest revision as of 19:14, 30 October 2024

↵ Using CASA

HINTS, TIPS & TRICKS

Getting Started

Data Reduction

General

Loading Data

Flagging

Calibration

Imaging

Analysis

Miscellaneous

Simulations


How CASA Works

If CASA Doesn't Work

Writing a CASA Task

VLA


Bug Checking

Also check out the step-by-step tutorials on this wiki!


↵ CASAguides



CASA Tips

  • CASA Basics
    • CASA Homepage Information on the latest releases, documentation, and support
    • CASA mailing lists Please subscribe to receive information on releases, critical bugs, etc.
    • Installing CASA Where to obtain CASA, and how to install it in different operating systems





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