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0.1.105 sdcoaddold
Requires:
Synopsis
ASAP SD task [DEPRECATED]: Coadd multiple scantables into one
Description
### DEPRECATION WARNING
#################################################
This task will be removed in CASA 5.1. The functionality of this task with
MeasurementSet format is replicated with mstransform.
#########################################################################
Task sdcoaddold performs co-add multiple single dish spectral data given by a list of spectral data file names in any of the following formats, ASAP, MS2,SDFITS, and ASCII. The units of line flux, the units of spectral axis, frame, and doppler are assumed to be those of the first one in the infiles.
The task tries to combine spws according to a tolerance value specified by the parameter freqtol. Default tolerance is ’0Hz’, which means spws are combined only when spectral setup are the same. Note that, except for first data in the infiles, spw is ignored if there are no corresponding spectral data in the main table.
Arguments
Inputs |
| ||
infiles |
| list of names of input SD dataset
| |
| allowed: | stringArray |
|
| Default: |
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antenna |
| select an antenna name or ID, e.g. ’PM03’ (only effective
for MS input)
| |
| allowed: | any |
|
| Default: | variant 0 | |
freqtol |
| Frequency shift tolerance for considering data as the
same spwid
| |
| allowed: | any |
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| Default: | variant
|
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outfile |
| name of output file (See a WARNING in help)
| |
| allowed: | string |
|
| Default: |
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outform |
| output file format (See a WARNING in help)
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| allowed: | string |
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| Default: | ASAP |
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overwrite |
| overwrite the output file if already exists (See a
WARNING in help)
| |
| allowed: | bool |
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| Default: | False |
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void
Example
------------------
Keyword arguments
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infiles -- list of names of input SD dataset
antenna -- select an antenna name or ID
default: 0
example: ’PM03’
NOTE this parameter is effective only for MS input
freqtol -- Frequency shift tolerance for considering data to be in the same
spwid. The number of channels must also be the same.
default: ’’ == 0 Hz (combine spwid only when frequencies are the same)
example: freqtol=’10MHz’ will not combine spwid unless they are
within 10 MHz.
Note: This option is useful to combine spectral windows with very slight
frequency differences caused by Doppler tracking, for example.
outfile -- name of output file
default: ’’ (<infile>_coadd)
outform -- format of output file
options: ’ASCII’,’SDFITS’,’MS’,’ASAP’
default: ’ASAP’
example: the ASAP format is easiest for further sd
processing; use MS for CASA imaging.
If ASCII, then will append some stuff to
the outfile name
overwrite -- overwrite the output file if already exists
options: (bool) True,False
default: False
NOTE this parameter is ignored when outform=’ASCII’
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WARNING
-------
For the GBT raw SDFITS format data as input:
SDtasks are able to handle GBT raw SDFITS format data since the
data filler is available. However, the functionality is not well
tested yet, so that there may be unknown bugs.
More information about CASA may be found at the
CASA web page
Copyright © 2016 Associated Universities Inc., Washington, D.C.
This code is available under the terms of the GNU General Public Lincense
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