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