This package provides support for WCS based distortion models and coordinate
transformation developed to support HST imaging observations. It consists of two subpackages -
updatewcs and wcsutil. updatewcs
performs corrections to the basic WCS and inserts
other distortion infomation in the science files as header keywords or file extensions.
wcsutil provides an
wcsutil.STWCS object which extends
astropy.wcs.WCS provides HST
instrument specific information as well as methods for coordinate transformation. wcsutil also provides
functions for manipulating alternate WCS descriptions in the headers.
STWCS is based on
- Technical reports