Dynamic Spectrum and Imaging - Revision history

Sjyu at 15:57, 15 May 2019

2019-05-15T15:57:57Z

← Older revision		Revision as of 15:57, 15 May 2019
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	==Obtaining the Data==		==Obtaining the Data==
	/common/data/eovsa_tutorial/IDB20170821201020-203020.12s.slfcaled.ms on virgo.		/common/data/eovsa_tutorial/IDB20170821201020-203020.12s.slfcaled.ms on virgo.
	~~We didn't say any about the virgo server yet. Shall we put it here.~~

	==Get Dynamic Sepctrum with SunCASA==		==Get Dynamic Sepctrum with SunCASA==

Sjyu: /* Obtaining the Data */

2019-05-15T15:21:26Z

Obtaining the Data

← Older revision		Revision as of 15:21, 15 May 2019
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	==Obtaining the Data==		==Obtaining the Data==
	/common/data/eovsa_tutorial/IDB20170821201020-203020.12s.slfcaled.ms		/common/data/eovsa_tutorial/IDB20170821201020-203020.12s.slfcaled.ms on virgo.
	We didn't say any about the virgo server yet. Shall we put it here.		We didn't say any about the virgo server yet. Shall we put it here.

Sjyu: /* Obtaining the Data */

2019-05-15T15:20:54Z

Obtaining the Data

← Older revision		Revision as of 15:20, 15 May 2019
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	==Obtaining the Data==		==Obtaining the Data==
			/common/data/eovsa_tutorial/IDB20170821201020-203020.12s.slfcaled.ms
			We didn't say any about the virgo server yet. Shall we put it here.

	==Get Dynamic Sepctrum with SunCASA==		==Get Dynamic Sepctrum with SunCASA==

Sjyu at 15:17, 15 May 2019

2019-05-15T15:17:04Z

← Older revision		Revision as of 15:17, 15 May 2019
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			==Overview==
			This tutorial describes the making dynamic spectrum and imaging the EOVSA microwave data observed on August 21, 2017.

			==Obtaining the Data==


	==Get Dynamic Sepctrum with SunCASA==		==Get Dynamic Sepctrum with SunCASA==

Sjyu at 15:11, 15 May 2019

2019-05-15T15:11:16Z

← Older revision		Revision as of 15:11, 15 May 2019
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	==Get Dynamic Sepctrum with SunCASA==		==Get Dynamic Sepctrum with SunCASA==
	Within ''SunCASA'', you are using IPython to interact with the system. This does not mean extensive python experience is necessary. Basic Python interactions are straightforward, e.g., assigning parameters, importing modules, running functions. The first module we introduce is ''dspec''. This module allows you to generate a dynamic spectrum from an MS file, and visualize it. You can select a subset of data by specifying a [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline]. The selection syntax follows the ''CASA'' convention. More information may be found in the CASA guide of [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline] selection pages.		Within ''SunCASA'', you are using IPython to interact with the system. This does not mean extensive python experience is necessary. Basic Python interactions are straightforward, e.g., assigning parameters, importing modules, running functions. The first module we introduce is ''dspec''. This module allows you to generate a dynamic spectrum from an MS file, and visualize it. You can select a subset of data by specifying a [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline]. The selection syntax follows the ''CASA'' convention. More information may be found in the CASA guide of [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline] selection pages.

			[[file:fig-dspec.png\|thumb\|right\|200px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]

	<pre style="background-color: #FCEBD9;">		<pre style="background-color: #FCEBD9;">
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	~~[[file:fig-dspec.png\|thumb\|right\|200px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]~~

	==Imaging with SunCASA ==		==Imaging with SunCASA ==

Sjyu: /* Get Dynamic Sepctrum with SunCASA */

2019-05-15T15:09:45Z

Get Dynamic Sepctrum with SunCASA

← Older revision		Revision as of 15:09, 15 May 2019
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	[[file:fig-dspec.png\|thumb\|right\|~~500px~~\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]		[[file:fig-dspec.png\|thumb\|right\|200px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]

	==Imaging with SunCASA ==		==Imaging with SunCASA ==

Sjyu: /* Get Dynamic Sepctrum with SunCASA */

2019-05-15T15:08:58Z

Get Dynamic Sepctrum with SunCASA

← Older revision		Revision as of 15:08, 15 May 2019
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	[[file:fig-dspec.png\|thumb\|~~center~~\|500px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]		[[file:fig-dspec.png\|thumb\|right\|500px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]

	==Imaging with SunCASA ==		==Imaging with SunCASA ==

Sjyu: /* Imaging with SunCASA */

2019-05-15T15:08:00Z

Imaging with SunCASA

← Older revision		Revision as of 15:08, 15 May 2019
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	==Imaging with SunCASA ==		==Imaging with SunCASA ==
	cd to your working directory where the measurement sets file is located.		cd to your working directory where the measurement sets file is located.
	<pre>		<pre style="background-color: #FCEBD9">
	from suncasa.utils import qlookplot as ql		from suncasa.utils import qlookplot as ql
	msfile = 'IDB20170821201020-203020.12s.slfcaled.ms'		msfile = 'IDB20170821201020-203020.12s.slfcaled.ms'

Sjyu: /* Get Dynamic Sepctrum with SunCASA */

2019-05-15T15:07:21Z

Get Dynamic Sepctrum with SunCASA

← Older revision		Revision as of 15:07, 15 May 2019
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	Within ''SunCASA'', you are using IPython to interact with the system. This does not mean extensive python experience is necessary. Basic Python interactions are straightforward, e.g., assigning parameters, importing modules, running functions. The first module we introduce is ''dspec''. This module allows you to generate a dynamic spectrum from an MS file, and visualize it. You can select a subset of data by specifying a [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline]. The selection syntax follows the ''CASA'' convention. More information may be found in the CASA guide of [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline] selection pages.		Within ''SunCASA'', you are using IPython to interact with the system. This does not mean extensive python experience is necessary. Basic Python interactions are straightforward, e.g., assigning parameters, importing modules, running functions. The first module we introduce is ''dspec''. This module allows you to generate a dynamic spectrum from an MS file, and visualize it. You can select a subset of data by specifying a [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline]. The selection syntax follows the ''CASA'' convention. More information may be found in the CASA guide of [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline] selection pages.

	<~~source lang~~="~~python~~">		<pre style="background-color: #FCEBD9;">
	from suncasa.utils import dspec as ds		from suncasa.utils import dspec as ds

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	## this plot the dynamic spectrum.		## this plot the dynamic spectrum.
	ds.plt_dspec(specfile, pol='XXYY')		ds.plt_dspec(specfile, pol='XXYY')
	</~~source~~>		</pre>

Sjyu: /* Get Dynamic Sepctrum with SunCASA */

2019-05-15T15:05:29Z

Get Dynamic Sepctrum with SunCASA

← Older revision		Revision as of 15:05, 15 May 2019
Line 3:		Line 3:
	Within ''SunCASA'', you are using IPython to interact with the system. This does not mean extensive python experience is necessary. Basic Python interactions are straightforward, e.g., assigning parameters, importing modules, running functions. The first module we introduce is ''dspec''. This module allows you to generate a dynamic spectrum from an MS file, and visualize it. You can select a subset of data by specifying a [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline]. The selection syntax follows the ''CASA'' convention. More information may be found in the CASA guide of [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline] selection pages.		Within ''SunCASA'', you are using IPython to interact with the system. This does not mean extensive python experience is necessary. Basic Python interactions are straightforward, e.g., assigning parameters, importing modules, running functions. The first module we introduce is ''dspec''. This module allows you to generate a dynamic spectrum from an MS file, and visualize it. You can select a subset of data by specifying a [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline]. The selection syntax follows the ''CASA'' convention. More information may be found in the CASA guide of [https://casa.nrao.edu/Release3.3.0/docs/UserMan/UserMansu112.html time range], [https://casaguides.nrao.edu/index.php/Selecting_Spectral_Windows_and_Channels spectral windows/channels], [https://casaguides.nrao.edu/index.php/Antenna/Baseline_Selection_Syntax_with_or_without_Autocorrelations antenna baseline] selection pages.

	<~~pre style~~="~~background-color: #d8bfd8;~~">		<source lang="python">
	from suncasa.utils import dspec as ds		from suncasa.utils import dspec as ds

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	## this plot the dynamic spectrum.		## this plot the dynamic spectrum.
	ds.plt_dspec(specfile, pol='XXYY')		ds.plt_dspec(specfile, pol='XXYY')
	</~~pre~~>		</source>


	[[file:fig-dspec.png\|thumb\|center\|500px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]		[[file:fig-dspec.png\|thumb\|center\|500px\|Figure 1: EOVSA cross power dynamic spectrum at stokes XX and YY]]