New pages

16:08, 10 December 2024 ‎VLA CASA Pipeline-CASA6.6.1 (hist | edit) ‎[70,300 bytes] ‎Earzaga (talk | contribs) (Created page with " '''This guide is designed for CASA 6.5.4.''' == Introduction == When VLA observations are complete, the raw data need to be calibrated and imaged for scientific applications. This is achieved through various steps as explained in the [https://casaguides.nrao.edu/index.php/Karl_G._Jansky_VLA_Tutorials VLA CASA tutorials.] The different calibration procedures are also bundled in a general VLA calibration pipeline that is described on the [http://go.nrao.edu/vla-pipe V...")
14:09, 3 December 2024 ‎ALMA Renormalization Correction 6.5.4 (hist | edit) ‎[2,012 bytes] ‎Ekeller (talk | contribs) (Created page with "This page applies to '''Cycles 8-10'''. Please see [[ALMA_Renormalization_Correction_6.6.1] for The Cycle 11 updated syntax. == Applying renormalization corrections to data == ALMA observations of sources with strong line emission are affected by amplitude calibration issues caused by the ALMA normalization strategy, as described in the following Knowledgebase Articles: [https://help.almascience.org/kb/articles/what-are-the-amplitude-calibration-issues-caused-by-alma-s-...")
14:34, 30 October 2024 ‎Sunspot Band6 Feathering for CASA 6.6.1 (hist | edit) ‎[14,164 bytes] ‎Swampler (talk | contribs) (Created page with "Category:ALMA Category:Imaging Category:Sun {{checked_6.5.4}} ==Overview== {{CARTA_6.5.4}} This portion of the Sunspot Band6 guide covers the combination process between the synthesized solar image and the full-sun image obtained with the TP array. It is the final step after: # calibrating the IF visibility data # imaging the IF data # calibrating and imaging the single-dish data If you wish, you may skip parts 1 and 2, download the calibrated data packa...")
14:33, 30 October 2024 ‎Sunspot Band6 SingleDish for CASA 6.6.1 (hist | edit) ‎[8,930 bytes] ‎Swampler (talk | contribs) (Created page with "Category:ALMA Category:Sun Category:Continuum Category:Calibration‏‎ {{checked_6.5.4}} ==Overview== {{CARTA_6.5.4}} This portion of the Sunspot Band6 guide will cover the calibration and imaging of the data obtained with the Total Power array. We create the map of a full Sun with Band6. ==Import the Data== If you completed the calibration of the visibility data following Sunspot_Band6_Calibration_for_CASA_6.5.4, we assume you are working in th...")
14:31, 30 October 2024 ‎Sunspot Band6 Imaging for CASA 6.6.1 (hist | edit) ‎[7,401 bytes] ‎Swampler (talk | contribs) (Created page with "Category:ALMA Category:Imaging Category:Sun {{checked_6.5.4}} ==Overview== {{CARTA_6.5.4}} This portion of the guide will cover the image synthesis of a sunspot. It begins where Sunspot_Band6_Calibration_for_CASA_6.5.4 is completed. If you completed the calibration, you may continue working in the directory ''Sunspot_Band6_UncalibratedData''. If you did not complete the calibration portion of the guide, the calibrated visibility data is available to down...")
14:30, 30 October 2024 ‎Sunspot Band6 Calibration for CASA 6.6.1 (hist | edit) ‎[51,406 bytes] ‎Swampler (talk | contribs) (Created page with "Category:ALMA Category:Calibration Category:Sun {{checked_6.5.4}} ==Getting Started== Details of these ALMA observations are provided at Sunspot_Band6. This portion of the guide will cover the calibration of the raw visibility data. <font color="red"> WARNING: The command in the #Tsys+Tant calibration of the Sun section of this guide takes a long time to run. Depending on your machine, it may be between a couple hours and one day. </font> ===Download...")
19:54, 28 October 2024 ‎Sunspot Band6 6.6.1 (hist | edit) ‎[6,433 bytes] ‎Swampler (talk | contribs) (Created page with "{{checked_6.6.1}} Category:ALMA Category:Sun Category:Continuum ==Science Target Overview== 500px|thumb|right|The multi-wavelength images of AR12470 observed with HMI/SDO, AIA/SDO, SWAP/PROBA2 and XRT/Hinode. The images are from this [https://www.solarmonitor.org/index.php?date=20151218&region=12470 “SolarMonitor” webpage]. These Science Verification observations have been taken with the aim of testing ALMA solar capabili...")
18:38, 18 October 2024 ‎ALMA Imaging Pipeline Reprocessing for Manually Calibrated Data Cycle 11 (hist | edit) ‎[7,958 bytes] ‎Swood (talk | contribs) (Created page with "== About This Guide == {{checked_6.6.1}} '''This guide describes some examples for creating the interferometric imaging products using the ALMA Cycle 11 Pipeline, for manually calibrated data. And it does NOT work for a concatenated measurement set, often named as calibrated_final.ms .''' Note that the scripts described in this guide have only been tested in Linux. == How to Restore Manually Calibrated Measurement Set == If the delivered data has been manually calib...")
17:50, 18 October 2024 ‎ALMA Renormalization Correction 6.6.1 (hist | edit) ‎[2,740 bytes] ‎Ekeller (talk | contribs) (Created page with "== Applying renormalization corrections to data == ALMA observations of sources with strong line emission are affected by amplitude calibration issues caused by the ALMA normalization strategy, as described in the following Knowledgebase Articles: [https://help.almascience.org/kb/articles/what-are-the-amplitude-calibration-issues-caused-by-alma-s-normalization-strategy] and [https://help.almascience.org/kb/articles/what-errors-could-originate-from-the-correlator-spectral...")
17:37, 18 October 2024 ‎Simulating ngVLA Data-CASA6.6.5 (hist | edit) ‎[33,036 bytes] ‎Jott (talk | contribs) (Created page with "=== Introduction === The following tutorial shows how to create simulated data for the next generation Very Large Array (ngVLA). The ngVLA is composed of different subarrays that make up the current reference design. The configuration files for the different subarrays can be used for simulations and calculations that investigate the scientific capabilities of the ngVLA. Each configuration (.cfg) file contains the name of the observatory, the antenna positions, the coord...")
14:27, 18 October 2024 ‎ALMA Cycle 11 Imaging Pipeline Reprocessing (hist | edit) ‎[33,169 bytes] ‎Swood (talk | contribs) (Created page with "== Cycle Compatibility and New Tool == In Cycle 9, a new nomenclature was adopted for measurement sets within the ALMA pipeline: uid*targets.ms for the continuum + line (non-continuum-subtracted) target-only data, and uid*targets_line.ms to reference the continuum subtracted data. Data restored with a scriptForPI.py from prior to Cycle 9 will have an incompatible uid*target.ms format, and must be modified to uid*targets.ms to work with the scripts in this guide. Note as...")
19:11, 16 October 2024 ‎Simalma CASA 6.6.1 (hist | edit) ‎[10,655 bytes] ‎Dludovic (talk | contribs) (Page Creation)
23:26, 4 October 2024 ‎ALMA Tutorials draft (hist | edit) ‎[6,765 bytes] ‎Estarr (talk | contribs) (Created page with "== Introduction == This page contains tutorials to guide ALMA users through some common types of data imaging and analysis using CASA with example ALMA datasets. Here are some links to get started: ;ALMA * [http://almascience.org/ ALMA Science homepage] ;CASA * [http://casa.nrao.edu CASA homepage]: includes download and installation information * {{casadocs_6.6.1}} * Getting Started in CASA * CASA Tips * CASA Hints, Tips & Tricks * How To Use A CA...")
20:50, 1 October 2024 ‎DataWeightsAndCombination CASA 6.6.1 (hist | edit) ‎[38,229 bytes] ‎Dludovic (talk | contribs) (Creating new page)
20:00, 30 September 2024 ‎Self-Calibration Template CASA 6.6.1 (hist | edit) ‎[22,688 bytes] ‎Masanche (talk | contribs) (Created page with "This guide continues with products created in ''' Image the Continuum Template'''. All imaging parameters are set in the previous guide. You will need '''calibrated_final_cont.ms''' to proceed. Commands for this guide can be found in scriptForImaging_template.py available on [https://github.com/aakepley/ALMAImagingScript github]. This guide features CARTA, the “Cube Analysis and Rendering Tool for Astronomy,” which is the new NRAO visualization...")
19:55, 30 September 2024 ‎Image Continuum CASA 6.6.1 (hist | edit) ‎[33,575 bytes] ‎Masanche (talk | contribs) (Created page with "This guide should be used after completing ''' Prepare the data for Imaging'''. You should have created '''calibrated_final.ms''' prior to proceeding. Commands for this guide can be found in scriptForImaging_template.py available on [https://github.com/aakepley/ALMAImagingScript github]. This guide features CARTA, the “Cube Analysis and Rendering Tool for Astronomy,” which is the new NRAO visualization tool for images and cubes. The CASA viewer (im...")
19:50, 30 September 2024 ‎Image Line CASA 6.6.1 (hist | edit) ‎[16,566 bytes] ‎Masanche (talk | contribs) (Created page with "This guide continues from ''' Image the Continuum Template''' and ''' Self-Calibration Template''' (optional). Imaging parameters and calibration tables (if applicable) should already be set prior to continuing. Commands for this guide can be found in scriptForImaging_template.py available on [https://github.com/aakepley/ALMAImagingScript github]. This guide features CARTA, the “Cube Analysis and Rendering Tool for...")
18:44, 27 September 2024 ‎Imaging Prep CASA 6.6.1 (hist | edit) ‎[23,064 bytes] ‎Masanche (talk | contribs) (Created page with "== Imaging Prep Workflow == Commands for this page can be found in scriptForImagingPrep_template.py available on [https://github.com/aakepley/ALMAImagingScript github]. center|frame|1200px ''Use the Imaging Prep workflow to determine which sections of this guide are applicable to your dataset.'' == Splitting off the calibrated data (Pipeline Calibration) == If your measurement set (ms) is pipeline calibrated, use this step to split off th...")
15:22, 26 September 2024 ‎Tclean and ALMA CASA 6.6.1 (hist | edit) ‎[11,831 bytes] ‎Masanche (talk | contribs) (Created page with "{{checked_6.5.4}} == Introduction == As introduced in the First Look at Imaging guide, starting with CASA 4.7, the imaging capabilities of CLEAN have been refactored and improved in a task called TCLEAN, which is called by the user in largely the same way as clean. The pipeline uses TCLEAN for all imaging steps. In this guide, the differences in syntax between CLEAN and TCLEAN (called hereafter "clean" and "tclean") are made more explicit. At any time, please see t...")
21:40, 25 September 2024 ‎Simulating Observations in CASA draft (hist | edit) ‎[10,992 bytes] ‎Hsheets (talk | contribs) (Created page with "Category: Simulations == Introduction == This page contains tutorials on how to simulate data in CASA. The two main CASA tasks that are used for this are {{simobserve_6.6.1}} and {{simanalyze_6.6.1}}. CASA includes [http://casaguides.nrao.edu/index.php?title=Antenna_Configurations_Models_in_CASA_Cycle10 configuration files] for a large number of interferometers (ALMA, VLA, VLBA, ATCA, CARMA, SMA, PdBI and WSRT). For ALMA, the Guide_To_Simulating_ALMA_Data | Gui...")
19:45, 20 September 2024 ‎M100 Band3 draft (hist | edit) ‎[10,384 bytes] ‎Swood (talk | contribs) (Created page with "M100 Introduction Page. {{Checked_6.6.1}} == Science Target Overview == M100 (NGC 4321; RA 12h 22m 54.8s, Dec +15 49' 19") is a nearby (~16 Mpc) 'grand-design' barred spiral galaxy in the Virgo cluster. It has long spiral arms dominating its optical disk and an abundance of molecular gas in its center. It has a relatively face-on inclination of ~30 degrees. 300px|thumb|right|<caption>M100 as seen in the infrared by Spitzer.</caption> In the 19...")
19:12, 20 September 2024 ‎M100 Band3 SingleDish 6.6.1 (hist | edit) ‎[41,029 bytes] ‎Swood (talk | contribs) (Created page with " Category:ALMA Category:Calibration Category:Spectral Line = Overview = {{CARTA_6.6.1}} *'''This guide assumes that you have downloaded the Total Power data in M100_Band3_TP_UncalibratedData.tgz as described in M100_Band3#Obtaining_the_Data''' *'''Details of the ALMA observations are described at M100_Band3 *'''This portion of the guide covers calibration and imagin...")
17:58, 20 September 2024 ‎M100 Band3 Combine 6.6.1 (hist | edit) ‎[36,866 bytes] ‎Swood (talk | contribs) (Created page with "{{Checked_6.6.1}} = Overview = {{CARTA_6.6.1}} This guide describes how to combine the 7m and 12m interferometric data and then how to feather the resulting image with the total power TP image. All of the data for this Science Verification (SV) project can be found at https://almascience.nrao.edu/alma-data/science-verification. '''This guide has been written for data reduced in CASA 6.5.4''' and assumes that all calibration tables (Tsys and gain tables) have been applie...")
18:14, 19 September 2024 ‎AntennaeBand7 Imaging 6.6.1 (hist | edit) ‎[51,917 bytes] ‎Tashton (talk | contribs) (Created page with "{{Checked_6.6.1}} ==Overview==  {{CARTA_6.6.1}} Details of these observations are provided at AntennaeBand7. This tutorial picks up where AntennaeBand7_Calibration leaves off, with fully calibrated measurement sets of the split out science...")
17:48, 19 September 2024 ‎AntennaeBand7 Calibration 6.6.1 (hist | edit) ‎[119,993 bytes] ‎Tashton (talk | contribs) (Created page with "Category:ALMA Category:Calibration Category:Spectral Line {{Checked_6.6.1}} ==Overview== Details of these observations are provided at AntennaeBand7. This part of the CASA guide will step through the calibration of the visibility data. We will begin by flagging (marking as bad) data known to be useless before any inspection; for example, data where one telescope blocks the line of sight of another (shadowing). We will then apply telescope-generated calibr...")
19:55, 18 September 2024 ‎First Look at Image Analysis CASA 6.6.1 (hist | edit) ‎[12,798 bytes] ‎Tashton (talk | contribs) (Created page with "==About this Guide== {{checked_6.6.1}} {{CARTA_6.6.1}} The first few tutorials provided us with a spectral line data cube and a continuum image. Next we'd like to understand some of the properties of the images that we have produced. In case you don't have the images from the first tutorials handy, let's start by copying the image files from the working directory in the full data package (download instructions are at First_Look_at_Imaging_CASA_6.6.1) to our curren...")
19:51, 18 September 2024 ‎Automasking Guide CASA 6.6.1 (hist | edit) ‎[54,722 bytes] ‎Estarr (talk | contribs) (Created page with "{{checked_6.6.1}} == Introduction == {{CARTA_6.6.1}} Starting with CASA 5.1, a new algorithm has been incorporated into {{tclean_6.6.1}} to automatically mask regions during the cleaning process. Referred to as ‘auto-multithresh’, this algorithm is intended to mimic what an experienced user would do when manually masking images. It can be used by setting the ''usemask'' option in {{tclean_6.6.1}} to ’auto-multithresh’. A full description of the auto-multithr...")
19:49, 18 September 2024 ‎First Look at Line Imaging CASA 6.6.1 (hist | edit) ‎[13,123 bytes] ‎Tashton (talk | contribs) (Created page with "==About this Guide== {{checked_6.6.1}} {{CARTA_6.6.1}} This lesson steps you through imaging of spectral lines. We start here with the self-calibrated data from the previous tutorial. We could just as easily begin with the non self-calibrated data, but we would not then benefit from the improvements that the self calibration provided. If you have not completed the previous tutorial, you'll need the self-calibrated data. You can download the full package for these Fir...")
19:41, 18 September 2024 ‎First Look at Self Calibration CASA 6.6.1 (hist | edit) ‎[26,987 bytes] ‎Tashton (talk | contribs) (Created page with " Editing First Look at Self Calibration CASA 6.5.4 ==About this Guide== {{checked_6.6.1}} {{CARTA_6.6.1}} This guide steps you through continuum imaging and self calibration of the science data for our science target, TW Hydra. ==Getting the Data== You should have downloaded the data package as part of the previous imaging tutorial. If you haven't done that yet, check the First_Look_at_Imaging_CASA_6.5.4 Guide for instructions. In the previous tutorial, you made...")
17:06, 17 September 2024 ‎IRAS16293 Band9 (hist | edit) ‎[11,271 bytes] ‎Hsheets (talk | contribs) (Created page with "Category:ALMA Category:Calibration Category:Spectral line {{checked_6.6.1}} HOW ABOUT SOME LEARNING GOALS? ==Science Target Overview== IRAS 16293-2422 (d=160 pc; Chini 1981) is a well studied nearby Class 0 proto-binary system (consists of sources A and B) located in L1689 (i.e., Ophiuchus star forming cloud). The projected separation between sources A and B is roughly 5" (Mundy et al. 1992; Chandler et al. 2005; Figure 1 left panel). Sub-arcsecond VLA an...") originally created as "IRAS16293Band9 draft"
15:52, 17 September 2024 ‎IRAS16293 Band9 - Imaging for CASA 6.6.1 (hist | edit) ‎[34,715 bytes] ‎Hsheets (talk | contribs) (Created page with "{{Checked 6.6.1}} *'''This guide is written for CASA 6.6.1 and uses Python 3.8.''' *'''This script assumes that you have downloaded IRAS16293_Band9_UnCalibratedMS.tgz from IRAS16293Band9#Obtaining the Data'''. *'''Details of the ALMA observations are provided at IRAS16293Band9. *'''This portion of the guide covers imaging of the data. To skip to the calibration portion of the guide, see: IRAS16293 Band9 - Calibration for CASA 6.6.1'''. <pre style="backgrou...")
15:41, 17 September 2024 ‎IRAS16293 Band9 - Calibration for CASA 6.6.1 (hist | edit) ‎[78,486 bytes] ‎Hsheets (talk | contribs) (Created page with "Category:ALMA Category:Calibration Category:Spectral Line {{Checked 6.6.1}} *'''This guide is written for CASA 6.6.1 and uses Python 3.6. ''' *'''This script assumes that you have downloaded IRAS16293_Band9_UnCalibratedMS.tgz from IRAS16293Band9#Obtaining the Data'''. *'''Details of the ALMA observations are provided at IRAS16293Band9. *'''This portion of the guide covers calibration of the raw visibility data. To skip to the imaging portion of the gu...")
16:58, 16 September 2024 ‎3C286 Band6Pol Imaging for CASA 6.6.1 (hist | edit) ‎[38,836 bytes] ‎Estarr (talk | contribs) (Created page with "Category:ALMA Category:Imaging Category:Polarization ==Overview== '''This guide is designed for CASA 6.5.4.''' This portion of the '''3C286_Polarization''' CASA Guide will cover the imaging of the total power and polarized emission. Details of the ALMA observations are provided at '''3C286_Polarization'''. This guide picks up where the '''3C286_Band6Pol_Calibration_for_CASA_6.5.4''' section left off: right after running the CASA task {{split_6.6...")
16:57, 16 September 2024 ‎3C286 Band6Pol Calibration for CASA 6.6.1 (hist | edit) ‎[91,961 bytes] ‎Estarr (talk | contribs) (Created page with "Category:ALMA Category:Calibration Category:Polarization ==Overview== This portion of the '''3C286_Polarization''' CASA Guide will cover the calibration of the raw visibility data. '''To follow this guide you must have downloaded the file 3C286_Band6_UncalibratedData.tgz from 3C286_Polarization#Obtaining the Data'''. Details of the ALMA observations are provided at '''3C286_Polarization'''. To skip to the imaging portion of the guide, see: '''...")
14:19, 16 September 2024 ‎First Look at Imaging CASA 6.6.1 (hist | edit) ‎[42,757 bytes] ‎Estarr (talk | contribs) (Created page with "== About this Guide == {{checked_6.6.1}} {{CARTA_6.6.1}} The purpose of this tutorial is to provide a first look at imaging ALMA data for those new to CASA. Data delivered by ALMA is pre-calibrated either by ARC staff or by the ALMA calibration pipeline. The delivered data is ready for imaging. This tutorial demonstrates the basic procedures that will help you complete the imaging steps. This guide covers the same material used in hands-on training sessions at [http...")

New pages

Navigation menu

Page actions

Page actions

Personal tools

Search

Tools