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.

A MIRI specific task. 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:

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 or pathlib.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

`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

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.