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

Bases: JwstStep

RefPixStep: Use reference pixels to correct bias drifts

Create a Step instance.

  • 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 of other config files.

  • **kws (dict) – Additional parameters to set. These will be set as member variables on the new Step instance.

Attributes Summary




Methods Summary


This is where real work happens.

Attributes Documentation

class_alias = 'refpix'
reference_file_types = ['refpix']
odd_even_columns = boolean(default=True) # Compute reference signal separately for even/odd columns
use_side_ref_pixels = boolean(default=True) # Use side reference pixels for reference signal for each row
side_smoothing_length = integer(default=11) # Median window smoothing height for side reference signal
side_gain = float(default=1.0) # Multiplicative factor for side reference signal before subtracting from rows
odd_even_rows = boolean(default=True) # Compute reference signal separately for even- and odd-numbered rows
ovr_corr_mitigation_ftr = float(default=3.0) # Factor to avoid overcorrection of bad reference pixels for IRS2

Methods Documentation


This is where real work happens. Every Step subclass has to override this method. The default behaviour is to raise a NotImplementedError exception.