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A tool to create CRDS-formatted reference files for JWST from a set of input dark current files and a set of flat field files.

Project description


Build Status

This repository contains code that can be used to generate JWST reference files used in the data calibration pipeline. The output reference files are in CRDS format and should be immediately useable in the pipeline.


See the Installation page of the documentation for detailed installation instructions.


Documentation is still in the early stages of development, but is available on ReadTheDocs


JWST calibration pipeline:


Prior to contributing to the jwst_reffiles development, please review our style guide.

The following is a bare bones example of a best work flow for contributing to the project:

  1. Create a fork off of the spacetelescope jwst_reffiles repository.
  2. Make a local clone of your fork.
  3. Ensure your personal fork is pointing upstream properly.
  4. Create a branch on that personal fork.
  5. Make your software changes.
  6. Push that branch to your personal GitHub repository (i.e. origin).
  7. On the spacetelescope jwst_reffiles repository, create a pull request that merges the branch into spacetelescope:master.
  8. Assign a reviewer from the team for the pull request.
  9. Iterate with the reviewer over any needed changes until the reviewer accepts and merges your branch.
  10. Delete your local copy of your branch.

Code of Conduct

Users and contributors to the jwst_reffiles repository should adhere to the Code of Conduct. Any issues or violations pertaining to the Code of Conduct should be brought to the attention of a jwst_reffiles team member or to


Any questions about the jwst_reffiles project or its software can be directed to or

Current Development Team

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