pipeline.hif.cli.gotasks.hif_setjy

pipeline.hif.cli.gotasks.hif_setjy = <pipeline.hif.cli.gotasks.hif_setjy._hif_setjy object>

hif_setjy —- Fill the model column with calibrated visibilities

Fills the model column with the model visibilities.

Issues

Support for the setjy spix parameter needs to be added.

Output

results – If pipeline mode is ‘getinputs’ then None is returned. Otherwise the results object for the pipeline task is returned.

——— parameter descriptions ———————————————

vis The list of input MeasurementSets. Defaults to the list of

MeasurementSets defined in the pipeline context.

field The list of field names or field ids for which the models are

to be set. Defaults to all fields with intent ‘AMPLITUDE’.

example: field=’3C279’, field=’3C279, M82’

intent A string containing a comma delimited list of intents against

which the selected fields are matched. Defaults to all data with amplitude intent.

example: intent=’AMPLITUDE’

spw The list of spectral windows and channels for which bandpasses are

computed. Defaults to all science spectral windows.

example: spw=’11,13,15,17’

model Model image for setting model visibilities. Not fully

supported.

example: see details in help for CASA setjy task

reffile Path to a file containing flux densities for calibrators unknown to

CASA. Values given in this file take precedence over the CASA-derived values for all calibrators except solar system calibrators. By default the path is set to the CSV file created by h_importdata, consisting of catalogue fluxes extracted from the ASDM.

example: reffile=’’, reffile=’working/flux.csv’

normfluxes Normalize lookup fluxes. reffreq The reference frequency for spix, given with units. Provided to

avoid division by zero. If the flux density is being scaled by spectral index, then reffreq must be set to whatever reference frequency is correct for the given fluxdensity and spix. It cannot be determined from vis. On the other hand, if spix is 0, then any positive frequency can be used and will be ignored.

example: reffreq=’86.0GHz’, reffreq=’4.65e9Hz’

fluxdensity Specified flux density [I,Q,U,V] in Jy. Uses [1,0,0,0]

flux density for unrecognized sources, and standard flux densities for ones recognized by ‘standard’, including 3C286, 3C48, 3C147, and several planets, moons, and asteroids.

example: [3.06,0.0,0.0,0.0]

spix Spectral index for fluxdensity S = fluxdensity * (freq/reffreq)**spix

Only used if fluxdensity is being used. If fluxdensity is positive, and spix is nonzero, then reffreq must be set too. It is applied in the same way to all polarizations, and does not account for Faraday rotation or depolarization.

scalebychan This determines whether the fluxdensity set in the model is

calculated on a per channel basis. If False then only one fluxdensity value is calculated per spw.

standard Flux density standard, used if fluxdensity[0] less than 0.0. The

options are: ‘Baars’,’Perley 90’,’Perley-Taylor 95’, ‘Perley-Taylor 99’, ‘Perley-Butler 2010’ and ‘Butler-JPL-Horizons 2010’.

default: ‘Butler-JPL-Horizons 2012’ for solar system object

‘Perley-Butler 2010’ otherwise

pipelinemode The pipeline operating mode. In ‘automatic’ mode the pipeline

determines the values of all context defined pipeline inputs automatically. In interactive mode the user can set the pipeline context defined parameters manually. In ‘getinputs’ mode the user can check the settings of all pipeline parameters without running the task.

default: ‘automatic’.

dryrun Run the commands (True) or generate the commands to be run but

do not execute (False).

acceptresults Add the results of the task to the pipeline context (True) or

reject them (False).

——— examples ———————————————————–

1. Set the model flux densities for all the amplitude calibrators:

hif_setjy()