IRAS16293 Band9 - Calibration for CASA 3.3: Difference between revisions
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==Overview== | ==Overview== | ||
overview.. | |||
The general procedure in this guide follows the other ALMA CASA guides: [[NGC3256Band3]] and [[TWHydraBand7]]. | |||
==Unpack the Data== | |||
Once you have downloaded the Antennae_Band7_UnCalibratedMSandTablesForReduction.tgz, unpack the file in a terminal outside CASA using | |||
<source lang="bash"> | |||
tar -xvzf Antennae_Band7_UnCalibratedMSandTablesForReduction.tgz | |||
</source> | |||
then change directory to the new directory | |||
<source lang="bash"> | |||
cd Antennae_Band7_UnCalibratedMSandTablesForReduction | |||
</source> | |||
You may wish to type | |||
<source lang="bash"> | |||
ls | |||
</source> | |||
to look at the files present. You should see a set of files with extension ".ms". These are CASA measurement set (MS) files. The data have already been converted to MS format from the native ALMA format using the CASA task {{importasdm}}. In addition to the data, we provide you with calibration tables containing system temperature (Tsys), water vapor radiometer (WVR), and antenna position information. For Early Science, these tables will either be pre-applied or supplied with the data. | |||
To begin, start CASA by typing | |||
<source lang="bash"> | |||
casapy | |||
</source> | |||
Be sure that you are using the version indicated at the top of this page. | |||
==Initial Inspection== | |||
Revision as of 14:05, 17 May 2012
- This script assumes that you have downloaded IRAS16293_Band9_UnCalibratedMSAndTablesForReduction.tgz from IRAS16293Band9#Download 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 guide, see: IRAS16293 Band9 - Imaging.
Overview
overview..
The general procedure in this guide follows the other ALMA CASA guides: NGC3256Band3 and TWHydraBand7.
Unpack the Data
Once you have downloaded the Antennae_Band7_UnCalibratedMSandTablesForReduction.tgz, unpack the file in a terminal outside CASA using
tar -xvzf Antennae_Band7_UnCalibratedMSandTablesForReduction.tgz
then change directory to the new directory
cd Antennae_Band7_UnCalibratedMSandTablesForReduction
You may wish to type
ls
to look at the files present. You should see a set of files with extension ".ms". These are CASA measurement set (MS) files. The data have already been converted to MS format from the native ALMA format using the CASA task importasdm. In addition to the data, we provide you with calibration tables containing system temperature (Tsys), water vapor radiometer (WVR), and antenna position information. For Early Science, these tables will either be pre-applied or supplied with the data.
To begin, start CASA by typing
casapy
Be sure that you are using the version indicated at the top of this page.
