The current version is:  2023.04.21 - Release v1.0

The initial release of jwst1pass is available as of April 21, 2023.
There is no formal documentation for the software yet, though most of
the functionality is similar to that of hst1pass, which is documented
in the DOCs directory and here:

https://www.stsci.edu/~jayander/HST1PASS/DOCs/ACS_WFC_ISR_HST1PASS.pdf

The current version of jwst1pass works for NIRISS and MIRI.  It is 
the measuring engine used in Libralato et al 2023, ApJ (accepted).  
It is also available here:  https://arxiv.org/abs/2303.00009 and in 
the DOCs directory.

You can find the NIRISS and MIRI distortion corrections in LIB/GDCs 
and the PSFs in LIB/PSFs.

Soon, I will be enabling NIRCam operation and adding reference
files for that detector. NIRCam is more complicated in several 
ways... it has multiple detectors and a more complicated filter
dependence to its distortion (each module is separately focused).

This code is presented as-is.  We recommend users test it out and
evaluate the output with a careful eye.  The one-pass nature of
the code means that it is run best when you have multiple dithered
observtions of the same scene.  Typically, one runs jwst1pass on
each individual exposure, generating a catalog for each image. 
One can then collage these observations into a reference frame.
With the WCS=opion and use of a distortion solution, one can
"push" coordinates into a reference frame for easy collation.
The agreement among independent observations of the same thing
(a star's flux or position) is the best way to assess errors.


Citation instructions:
* If you have used this version of jwst1pass, please cite both 
  the original ISR of Jay Anderson and the NIRISS paper of 
  Libralato et al. (2023, accepted for publication in ApJ).
* If you have used the NIRISS PSFs and geometric-distortion 
  correction available in this online repository, please refer 
  to Libralato et al. (2023, accepted for publication in ApJ).


Don't hesitate to let me know if you have any questions.

   Jay Anderson