TA-crossinst

code to test TA algorithms and procedures for the JWST instruments

This repository contains:

• jwst_ta.py: a set of functions for centroid calculation using the same method as GENTALOCATE. the code was adapted from an idl code written by P. Goudfrooij for NIRISS
• miri_test.py: a script that shows the calling sequence, used with MIRI data and parameters. can be used for testing.
• nircam_test.py: as above, for NIRCam.

Status (May 10th 2018):

• Code returns the same result as the idl script on the MIRI test data

• Code supports:

  • different checkbox and centroid window sizing
  • using full array or custom-sized region of interest for calculation
  • background subtraction: fractional or absolute value.
  • flat fielding
  • creating a TA image from a ramp or ingesting a pre-made TA image
  • creating a TA image from a custom list of group indices (and calculation of the scale factor)

• Not yet implemented:

  • random offset of target within ROI

Contributors:

• Bryan Hilbert
• Sarah Kendrew

Comments and contriutions welcome. Please use Issues and Pull requests.