https://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&feed=atom&action=historyVLA Radio galaxy 3C 129: P-band continuum tutorial-CASA5.0.0 - Revision history2024-03-29T12:06:46ZRevision history for this page on the wikiMediaWiki 1.38.6https://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=24612&oldid=prevJott at 16:10, 11 July 20182018-07-11T16:10:57Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[https://casaguides.nrao.edu/index.php/VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.4.0]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b><p></p> </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b><p></p> </div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=24611&oldid=prevJott at 16:10, 11 July 20182018-07-11T16:10:22Z<p></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[https://casaguides.nrao.edu/index.php/VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.4.0]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b><p></p> </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b><p></p> </div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=24439&oldid=prevJott: /* Ionospheric TEC Corrections */2018-05-24T22:40:11Z<p><span dir="auto"><span class="autocomment">Ionospheric TEC Corrections</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, (for the tutorial it is also also available [http://casa.nrao.edu/Data/EVLA/Pband/igsg0580.15i<del style="font-weight: bold; text-decoration: none;">.Z </del>here]) unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, (for the tutorial it is also also available <ins style="font-weight: bold; text-decoration: none;">in an unzipped version </ins>[http://casa.nrao.edu/Data/EVLA/Pband/igsg0580.15i here]) unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=24436&oldid=prevJott: /* Ionospheric TEC Corrections */2018-05-24T21:20:25Z<p><span dir="auto"><span class="autocomment">Ionospheric TEC Corrections</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, (for the tutorial it is also also available [http://casa.nrao.edu/Data/Pband/igsg0580.15i.Z here]) unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, (for the tutorial it is also also available [http://casa.nrao.edu/Data<ins style="font-weight: bold; text-decoration: none;">/EVLA</ins>/Pband/igsg0580.15i.Z here]) unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=24435&oldid=prevJott: /* Ionospheric TEC Corrections */2018-05-24T21:19:40Z<p><span dir="auto"><span class="autocomment">Ionospheric TEC Corrections</span></span></p>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, (for the tutorial it is also also available <del style="font-weight: bold; text-decoration: none;">[</del>[http://casa.nrao.edu/Data/Pband/igsg0580.15i.Z here<del style="font-weight: bold; text-decoration: none;">]</del>]) unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, (for the tutorial it is also also available [http://casa.nrao.edu/Data/Pband/igsg0580.15i.Z here]) unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=24434&oldid=prevJott at 21:19, 24 May 20182018-05-24T21:19:08Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[File:Pband_vla_tecu_new.png|200px|thumb|right|Figure 2: TEC value vs time generated by <i>tec_maps.create()</i>]] </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Low frequency observations are affected by the ionosphere. A delay in the signal path is introduced between the two polarization of light that varies both as a function of time and line of sight (direction dependent). The delay is proportional to the Total Electron Content (TEC) along the line of sight and is inversely proportional to the square of the frequency. GPS measurements at two different frequencies provides us with an estimate of the TEC per square meter. This correction has been implemented in CASA which we shall apply as a calibration table by means of the <i>gencal</i> task. The task requires a TEC map that we will generate utilizing CASA recipes. For more information, see the section on [https://casa.nrao.edu/casadocs/casa-5.0.0/synthesis-calibration/preparing-for-calibration/#title5 ionospheric corrections] in the CASA documentation archives. For some versions of CASA, the first plot to the right (Figure 2) may not be generated if you have already run plotants: to generate this plot, you will need to quit CASA and start it again. If the IONEX data file was not downloaded you might be missing the curl package in the environment you are running CASA in. In this case you can provide the required file manually by downloading: ftp://cddis.gsfc.nasa.gov/gnss/products/ionex/2015/058/igsg0580.15i.Z, <ins style="font-weight: bold; text-decoration: none;">(for the tutorial it is also also available [[http://casa.nrao.edu/Data/Pband/igsg0580.15i.Z here]]) </ins>unziping it, and placing it in the directory from which you started CASA. The current implementation in CASA is in the development stage, however since the CASA 5.0 release both the Faraday rotation correction and dispersive delay corrections for the ionosphere are enabled. In previous releases only Faraday rotation corrections are enabled. In this example we will generate the calibration table and apply it throughout calibration. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><source lang='python'></div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=23737&oldid=prevJsalcido at 22:27, 13 March 20182018-03-13T22:27:31Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:27, 13 March 2018</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b> If you are using a later version of CASA and this is the most recent available guide, then you should be able to use most, if not all, of this casaguide, as we try to limit script breaking changes in CASA development. </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b><ins style="font-weight: bold; text-decoration: none;"><p></p> </ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"><b> Note: This guide may take up to 2-days to complete </b><p></p> </ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>If you are using a later version of CASA and this is the most recent available guide, then you should be able to use most, if not all, of this casaguide, as we try to limit script breaking changes in CASA development. </div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Overview ==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>== Overview ==</div></td></tr>
</table>Jsalcidohttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=23553&oldid=prevJott at 22:40, 21 February 20182018-02-21T22:40:14Z<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:40, 21 February 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">[[https://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.3.0]]</del></div></td><td colspan="2" class="diff-side-added"></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b> If you are using a later version of CASA and this is the most recent available guide, then you should be able to use most, if not all, of this casaguide, as we try to limit script breaking changes in CASA development. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b> If you are using a later version of CASA and this is the most recent available guide, then you should be able to use most, if not all, of this casaguide, as we try to limit script breaking changes in CASA development. </div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=23520&oldid=prevJott at 21:33, 13 February 20182018-02-13T21:33:14Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:33, 13 February 2018</td>
</tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><!--By [http://www.aoc.nrao.edu/~pjaganna/Site/Home.html Preshanth Jagannathan] & [https://safe.nrao.edu/wiki/bin/view/Main/HuibIntemaWebHome Huib Intema] & Frank Schinzel--></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[https://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.3.0]]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b> If you are using a later version of CASA and this is the most recent available guide, then you should be able to use most, if not all, of this casaguide, as we try to limit script breaking changes in CASA development. </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div><b>This CASA Guide is for Version 5.0 of CASA.</b> If you are using a later version of CASA and this is the most recent available guide, then you should be able to use most, if not all, of this casaguide, as we try to limit script breaking changes in CASA development. </div></td></tr>
</table>Jotthttps://casaguides.nrao.edu/index.php?title=VLA_Radio_galaxy_3C_129:_P-band_continuum_tutorial-CASA5.0.0&diff=22650&oldid=prevBemonts at 18:22, 22 September 20172017-09-22T18:22:00Z<p></p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:22, 22 September 2017</td>
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<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>tec_image, tec_rms_image = tec_maps.create(vis='3C129.ms',doplot=True)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>tec_image, tec_rms_image = tec_maps.create(vis='3C129.ms',doplot=True)</div></td></tr>
<tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[NOTE: If you are using CASA 5.1.0, this should be: tec_image, tec_rms_image, plotname = tec_maps.create(vis='3C129.ms', doplot=True)]</ins></div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>#</div></td></tr>
<tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>gencal(vis='3C129.ms',caltable='3C129_pband.tecim',caltype='tecim',infile=tec_image)</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>gencal(vis='3C129.ms',caltable='3C129_pband.tecim',caltype='tecim',infile=tec_image)</div></td></tr>
</table>Bemonts