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Hint, tips, tricks
{{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>

Latest revision as of 16:38, 30 October 2017

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