calwebb_dark: Dark Processing¶
- Class:
- Alias:
calwebb_dark
The DarkPipeline
applies basic detector-level corrections to all dark exposures.
It is identical to the calwebb_detector1 pipeline, except
that it stops processing immediately before the dark_current step.
The list of steps is shown below. As with the calwebb_detector1
pipeline, the order of steps is a bit different for MIRI exposures.
Near-IR |
MIRI |
---|---|
Arguments¶
The calwebb_dark
pipeline has no optional arguments.
Inputs¶
4D raw data¶
- Data model:
- File suffix:
_uncal
The input to DarkPipeline
is a single raw dark exposure,
which contains the original raw data from all of the detector readouts in the exposure
(ncols x nrows x ngroups x nintegrations).
Outputs¶
4D corrected ramp¶
- Data model:
- File suffix:
_dark
Result of applying all pipeline steps listed above. Will have the same data dimensions as the input raw 4D data (ncols x nints x ngroups x nints).
PARS-DARKPIPELINE Reference File¶
- REFTYPE:
PARS-DARKPIPELINE
- Data model:
N/A
Reference Selection Keywords¶
CRDS selects appropriate pars-whitelightstep references based on the following keywords.
Instrument |
Keywords |
---|---|
FGS |
INSTRUME |
MIRI |
INSTRUME |
NIRCAM |
INSTRUME |
NIRISS |
INSTRUME |
NIRSPEC |
INSTRUME |
Standard Keywords¶
The following table lists the keywords that are required to be present in all reference files. The first column gives the FITS keyword names. The second column gives the jwst data model name for each keyword, which is useful when using data models in creating and populating a new reference file. The third column gives the equivalent meta tag in ASDF reference file headers, which is the same as the name within the data model meta tree (second column).
FITS Keyword |
Data Model Name |
ASDF meta tag |
---|---|---|
AUTHOR |
model.meta.author |
author |
DATAMODL |
model.meta.model_type |
model_type |
DATE |
model.meta.date |
date |
DESCRIP |
model.meta.description |
description |
FILENAME |
model.meta.filename |
N/A |
INSTRUME |
model.meta.instrument.name |
instrument: {name} |
PEDIGREE |
model.meta.pedigree |
pedigree |
REFTYPE |
model.meta.reftype |
reftype |
TELESCOP |
model.meta.telescope |
telescope |
USEAFTER |
model.meta.useafter |
useafter |
NOTE: More information on standard required keywords can be found here: Standard Required Keywords