sdcoaddold

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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:
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
	Default:	variant
outfile	name of output file (See a WARNING in help)
	allowed:	string
	Default:
outform	output file format (See a WARNING in help)
	allowed:	string
	Default:	ASAP
overwrite	overwrite the output file if already exists (See a WARNING in help)
	allowed:	bool
	Default:	False

Returns
void

Example

------------------
Keyword arguments
------------------
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.

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