PathLossStep

class jwst.pathloss.PathLossStep(name=None, parent=None, config_file=None, _validate_kwds=True, **kws)[source]

Bases: jwst.stpipe.Step

PathLossStep: Inserts the pathloss and wavelength arrays into the data.

Pathloss depends on the centering of the source in the aperture if the source is a point source. This step fills the following attributes in the datamodel:

  • for exposure type NRS_IFU, the 1-d arrays .wavelength_pointsource, .pathloss_pointsource, .wavelength_uniformsource and .pathloss_uniformsource
  • for exposure types NRS_FIXEDSLIT, NRS_BRIGHTOBJ, and NRS_MSASPEC, the 1-d arrays .slits[n].wavelength_pointsource, .slits[n].pathloss_pointsource, .slits[n].wavelength_uniformsource and .slits[n].pathloss_uniformsource

In all of these EXP_TYPES, these arrays are added to each member of the slits attribute.

Create a Step instance.

Parameters:
  • name (str, optional) – The name of the Step instance. Used in logging messages and in cache filenames. If not provided, one will be generated based on the class name.
  • parent (Step instance, optional) – The parent step of this step. Used to determine a fully-qualified name for this step, and to determine the mode in which to run this step.
  • config_file (str path, optional) – The path to the config file that this step was initialized with. Use to determine relative path names.
  • **kws (dict) – Additional parameters to set. These will be set as member variables on the new Step instance.

Attributes Summary

reference_file_types
spec

Methods Summary

process(input)

Attributes Documentation

reference_file_types = ['pathloss']
spec = '\n '

Methods Documentation

process(input)[source]