API

Public Step API

jwst.tweakreg.tweakreg_step Module

JWST pipeline step for image alignment.

Classes

TweakRegStep([name, parent, config_file, ...])

Perform image alignment based on catalogs of sources detected in input images.

jwst.tweakreg.utils Module

The utils module provides helpful functions for manually applying corrections to an imaging WCS.

Functions

adjust_wcs(wcs[, delta_ra, delta_dec, ...])	Apply corrections to an imaging WCS of 'cal' data models.
transfer_wcs_correction(to_image, from_image)	Apply WCS corrections from one image to another.

Complete Developer API

jwst.tweakreg.tweakreg_step.SINGLE_GROUP_REFCAT = ['GAIAREFCAT', 'GAIADR3', 'GAIADR2', 'GAIADR1']

List of astrometric catalogs available to the tweakreg step.

jwst.tweakreg.tweakreg_catalog Module

The tweakreg_catalog module provides functions for generating catalogs of sources from images.

Functions

make_tweakreg_catalog(model, snr_threshold, ...)

Create a catalog of point-line sources to be used for image alignment in tweakreg.