CASA Parameter Dictionary

ParameterSorted ascending Description Comments
  Used in: clean, mosaic
  Used in: importarchive
  Used in: correct
  Used in: bandpass, fluxscale, gaincal
  Used in: contsub
  Used in: clean, mosaic
  Used in: mosaic
  Used in: plotxy
  Used in: plotxy, split
  Used in:
  Used in: contsub
  Used in: contsub
  Used in: importuvfits
  Used in: setjy
  Used in: fluxscale
  Used in: importarchive
  Used in: clean, invert, mosaic
  Used in: bandpass, correct, gaincal
  Used in: bandpass, correct
  Used in: bandpass, correct
  Used in: feather
  Used in: clean, feather, mosaic
  Used in: clean, mosaic
  Used in: feather
  Used in:
  Used in: mosaic
  Used in: bandpass, clean, contsub, gaincal, invert, mosaic
  Used in: bandpass, correct, gaincal
  Used in: clean, mosaic
  Used in: bandpass, clean, gaincal, invert, mosaic, split
  Used in: bandpass, correct, gaincal
  Used in: split
  Used in: bandpass, gaincal
  Used in: fluxscale
  Used in:
  Used in:
  Used in: mosaic
  Used in: bandpass, contsub, gaincal
  Used in: **
  Used in: setjy
  Used in: bandpass, clean, gaincal, invert, mosaic, split
  Used in: bandpass, clean, gaincal, invert, mosaic, split
  Used in: clean, mosaic
  Used in: plotants, plotxy
  Used in: bandpass, correct, gaincal
  Used in: clean, mosaic
  Used in: split
  Used in: split
  Used in: fluxscale
  Used in: listobs
  Used in: bandpass, clean, contsub, correct, flagautocorr, fluxscale, gaincal, importarchive, importasdm, importuvfits, invert, listhistory, listobs, mosaic, plotants, plotxy, setjy, split
  Used in:
  Used by:
  Used in: plotxy
  Used in: plotxy
alg Imaging algorithm to use Options: 'clark','hogbom','csclean','multiscale','mfclark','mfhogbom','mfmultiscale'
bandname VLA frequency band Options: '4','P','L','C','X','U','K','Q'
bptable Bandpass calibration solutions table  
caltable Output calibration table  
cell Cell size [x,y] Units=arcsec
channels Range of channels to fit  
constpb In Sault weighting, the flux scale is constant above this value  
correlations Correlations Options: 'RR','LL','RR LL','XX','YY','XX YY'
datacolumn Which data set column to use Options: 'DATA'(raw),'MODEL_DATA','CORRECTED_DATA'
fieldid Field index identifier 0-based
fitmode Use of the continuum fit model Options: 'subtract','replace','model'
fitorder Polynomial order for fit  
fitsfile Name of input UV FITS file  
fluxdensity Specified flux density [I,Q,U,V] in Jy  
fluxtable Name of output, flux-scaled calibration table  
freqtolerance Tolerance in frequency shift in naming spectral windows  
gain Loop gain for CLEANing  
gaincurve Apply VLA antenna gain curve correction True or False
gainselect Select subset of calibration solutions from gaintable  
gaintable Gain calibration solutions table
highres Name of high resolution (interferometer) image  
imagename Name of output image(s) For clean and mosaic, this will be appended with .residual, .model and .image
imsize Image size in spatial pixels (x,y)  
lowres Name of low resolution (single dish) image  
mask Name(s) of mask image(s) used for CLEANing  
minpb Minimum primary beam level to use  
mode Type of data selection Options: 'none','channel','velocity'
msselect Optional subset of the data to select (field, spw,time,etc) See: http://aips2.nrao.edu/docs/notes/199/199.html
nchan Number of channels to select Used when mode = 'channel'
niter Number of iterations Set to 0 for no CLEANing
opacity Apply opacity correction True or False
outputvis Name of output visibility file (MS)  
refant Reference antenna  
reference Reference field name (transfer flux from)
rmode Robustness mode Used for weighting = 'briggs'
robust Brigg's robustness parameter Options: -2.0 (close to uniform) to 2.0 (close to natural)
scaletype Image plane flux scale type Options: 'SAULT','NONE'
solint Solution interval (sec)  
spwid Spectral window index identifier 0-based
standard Flux density standard Options: 'Baars','Perley 90','Perley-Taylor 95','Perley-Taylor 99'
start Start channel (0-relative), velocity Used when mode = 'channel','velocity'
step Increment between channels Used when mode = 'channel','velocity'
stokes Stokes parameters to image Options: 'I','IV','IQU','IQUV'
subplot Plot option for multi-panel ploArEtting subplot=yxn, where y=number of y panels, x=number of x panels, n=panel number for the current display starting at the top left
tau Opacity value to apply if opacity = True
threshold Flux level at which to stop CLEANing Units=mJy
timebin Value for time averaging '-1s' indicates no averaging
timerange Select time range for subset of data timerange='YYY/MM/DD/HH:MM:SS.sss'
timerange='< YYYY/MM/DD/HH:MM:SS.sss'
timerange='> YYYY/MM/DD/HH:MM:SS.sss'
timerange='ddd/HH:MM:SS.sss'
timerange='< ddd/HH:MM:SS.sss'
timerange='> ddd/HH:MM:SS.sss'
transfer Transfer field name(s)  
verbose List each observation in addition to summary True or False
vis Input visibility file CASA MeasurementSet on disk
weighting Weighting to apply to visibilities Options: 'natural','uniform','briggs','radial',superuniform'
width Channel width (value > 1 indicates channel averaging)
xaxis Quantity to plot on the xaxis Options: 'azimuth','baseline','channel','elevation','hourangle','parallacticangle','time','u','uvdist'
yaxis Quantity to plot on the y-axis Options: 'amp','phase'

-- JosephMcMullin - 21 Sep 2006
Topic revision: r4 - 2013-02-13, PatrickMurphy
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