ALMA2014 LBC SVDATA: Difference between revisions
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*'''Target_Band_Freq_UnCalibratedData''': Raw, uncalibrated data in ALMA Science Data Model (asdm) format | *'''Target_Band_Freq_UnCalibratedData''': Raw, uncalibrated data in ALMA Science Data Model (asdm) format | ||
*'''Target_Band_Freq_CalibrationScripts''': Calibration scripts that go along with | *'''Target_Band_Freq_CalibrationScripts''': Calibration scripts that go along with the UnCalibratedData. These scripts can be executed once placed in the same directory as the UnCalibratedData | ||
*'''Target_Band_Freq_CalibratedData''': Combined and calibrated uv-data. In the case of continuum datasets, an appropropriate amount of channel averaging has been applied to reduce the data size. Line data sets are provided at their full resolution. If self-calibration was possible, you will also find the final phase-only and amplitude tables in a subdirectory called "calibration". This gives the choice of either performing your own self-calibration or applying the supplied tables. If you are going to apply these tables, be sure to also run any 'flagdata' commands in the imaging scripts. '''Note that the imaging scripts are provided on this page, not at the science portal'''. | *'''Target_Band_Freq_CalibratedData''': Combined and calibrated uv-data. In the case of continuum datasets, an appropropriate amount of channel averaging has been applied to reduce the data size. Line data sets are provided at their full resolution. If self-calibration was possible, you will also find the final phase-only and amplitude tables in a subdirectory called "calibration". This gives the choice of either performing your own self-calibration or applying the supplied tables. If you are going to apply these tables, be sure to also run any 'flagdata' commands in the imaging scripts. '''Note that the imaging scripts are provided on this page, not at the science portal'''. | ||
Revision as of 14:08, 13 February 2015
This page is currently under construction.
DO NOT USE IT.
To navigate the CASAguides pages, visit [http://casaguides.nrao.edu/ casaguides.nrao.edu ]
Overview
This casaguide describes the imaging used for the ALMA 2014 Long Baseline Campaign Science Verification data. The purpose of this campaign was to commission baseline lengths up to 15 km in preparation for this capability to be offered for Cycle 3. As part of the overall commissioning plan, five science targets were chosen to span the range of properties that would be needed to offer the capability and to demonstrate to the community both the power and caveats associated with long baseline observing. As described below the data products can be dowloaded from the regional ALMA Science Portals, while the imaging scripts and salient details are provided on this page.
Obtaining the Data
To download the data, go to the Science Portal SV page for the region closest to your location:
Choose a LBC SV science target: 13. Juno, 14. Mira, 15. HL Tau, or 16. SDP.81
There you will find gzipped tar files of the form (these files can be unpacked with the tar -xvzf command):
- Target_Band_Freq_UnCalibratedData: Raw, uncalibrated data in ALMA Science Data Model (asdm) format
- Target_Band_Freq_CalibrationScripts: Calibration scripts that go along with the UnCalibratedData. These scripts can be executed once placed in the same directory as the UnCalibratedData
- Target_Band_Freq_CalibratedData: Combined and calibrated uv-data. In the case of continuum datasets, an appropropriate amount of channel averaging has been applied to reduce the data size. Line data sets are provided at their full resolution. If self-calibration was possible, you will also find the final phase-only and amplitude tables in a subdirectory called "calibration". This gives the choice of either performing your own self-calibration or applying the supplied tables. If you are going to apply these tables, be sure to also run any 'flagdata' commands in the imaging scripts. Note that the imaging scripts are provided on this page, not at the science portal.
- Target_Band_Freq_ReferenceImages: Final reference images with self-calibration applied where possible. For the few cases where primary beam correction is warranted these files are also provided. Images with .pbcor in the name have already been corrected. The files with .flux in the name are the primary beam images themselves and can be applied if wanted using the CASA task impbcor.
- README: Summarizes the data available for that science target.
