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{{Using CASA}} | |||
[[Category: CASA Basics]] | |||
== 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]] | |||
=== CASA Tips and Basics === | |||
* [http://casa.nrao.edu/ CASA Homepage] Information on the latest releases, documentation, and support | |||
* [http://casa.nrao.edu/mail_list.shtml 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 | |||
=== 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]] | |||
=== All CASA Tutorials === | |||
* [https://casaguides.nrao.edu/index.php/ALMAguides ALMA] | |||
* [https://casaguides.nrao.edu/index.php/Karl_G._Jansky_VLA_Tutorials Karl G. Jansky VLA] | |||
* [https://casaguides.nrao.edu/index.php/ATCA_Tutorials ATCA] | |||
* [https://casaguides.nrao.edu/index.php/Simulating_Observations_in_CASA_4.4 Simulations] | |||
* [https://casaguides.nrao.edu/index.php/Pre-upgrade_VLA_Tutorials pre-upgrade VLA] | |||
* [https://casaguides.nrao.edu/index.php/SMA_Tutorials SMA] | |||
* [https://casaguides.nrao.edu/index.php/CARMA_Tutorials CARMA] | |||
=== 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]] | |||
=== Hints, Tips, and Tricks! === | |||
* [[Selecting Spectral Windows and Channels]] | |||
* [[CASA Region Format]] (CASA 3.3+) | |||
* [[Data flagging with plotms]] | |||
* [[Data flagging with viewer]] | |||
* [[ UST2 | CASA User Contributed Scripts and Tasks]] Aligning, mosaicking, stitching, plotting weather, and more | |||
=== Bug Checking === | |||
* [[Check for the CASA Incremental Storage Manager Flagging Bug ]] | |||
=== CASA Related Lectures === | |||
* [http://www.aoc.nrao.edu/events/synthesis/2016/lectures.shtml Lectures from the 2016 Synthesis Imaging Workshop] | |||
* [https://science.nrao.edu/science/meetings/2016/vla-data-reduction Lectures from the 2016 VLA Data Reduction Workshop] | |||
* [https://science.nrao.edu/facilities/alma/naasc-workshops/nrao-cd-drp/program Lectures from the NAASC/ALMA 2017 Data Reduction Workshop] | |||
=== Misc Useful Links === | |||
* [http://casa.nrao.edu CASA homepage] | |||
* [http://casa.nrao.edu/docs/cookbook/ CASA Reference Manual & Cookbook] | |||
* [http://my.nrao.edu my.nrao.edu - Your Portal to NRAO Services] | |||
* [http://help.nrao.edu NRAO Helpdesk (for all inquiries except ALMA)] | |||
* [http://help.almascience.org ALMA Helpdesk (for all ALMA related inquiries)] | |||
* [http://science.nrao.edu/forums NRAO Science Forums] | |||
* [http://docs.python.org/ Python Documentation] | |||
* [http://www.splatalogue.net Splatalogue - Astronomical Line Database] | |||
Also check out the step-by-step tutorials on this wiki! | |||
[[Main Page | ↵ '''CASAguides''']] <br> | |||
Latest revision as of 18:57, 1 November 2024
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
- Axis definitions in plotms
- 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
- 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
CASA Tips and 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
How CASA Works
- Lattice Expression Language (LEL) as used, e.g. in immath
- Definition of a Measurement Set
- Definition of a Calibration Table
- CASA Parallel Processing
All CASA Tutorials
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.
- User-contributed Tasks
VLA
Hints, Tips, and Tricks!
- Selecting Spectral Windows and Channels
- CASA Region Format (CASA 3.3+)
- Data flagging with plotms
- Data flagging with viewer
- CASA User Contributed Scripts and Tasks Aligning, mosaicking, stitching, plotting weather, and more
Bug Checking
CASA Related Lectures
- Lectures from the 2016 Synthesis Imaging Workshop
- Lectures from the 2016 VLA Data Reduction Workshop
- Lectures from the NAASC/ALMA 2017 Data Reduction Workshop
Misc Useful Links
- CASA homepage
- CASA Reference Manual & Cookbook
- my.nrao.edu - Your Portal to NRAO Services
- NRAO Helpdesk (for all inquiries except ALMA)
- ALMA Helpdesk (for all ALMA related inquiries)
- NRAO Science Forums
- Python Documentation
- Splatalogue - Astronomical Line Database
Also check out the step-by-step tutorials on this wiki!
