FirstFrameStep

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

Bases: JwstStep

Set data quality flags for the first group in MIRI ramps.

If the number of groups is > than 3, the DO_NOT_USE group data quality flag is added to first group.

Create a Step instance.

Parameters:
namestr

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.

parentStep

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_filestr or pathlib.Path

The path to the config file that this step was initialized with. Use to determine relative path names of other config files.

_validate_kwdsbool

Validate given kws against specs/config.

**kwsdict

Additional parameters to set. These will be set as member variables on the new Step instance.

Attributes Summary

class_alias

spec

Methods Summary

process(step_input)

For MIRI data with more than 3 groups, set first group dq to DO_NOT_USE.

Attributes Documentation

class_alias = 'firstframe'
spec
bright_use_group1 = boolean(default=False) # do not flag group1 if group3 is saturated

Methods Documentation

process(step_input)[source]

For MIRI data with more than 3 groups, set first group dq to DO_NOT_USE.

Parameters:
step_inputDataModel

Input datamodel to be corrected

Returns:
output_modelDataModel

Firstframe corrected datamodel