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Next: Mapping of ITF Up: 7.1.1 Measurement of Distortions Previous: 7.1.1 Measurement of Distortions Mapping of Raw Science Image to ITF Space

The first correction for image distortion maps the science image to the geometric space of the relevant ITF. This correction utilizes the vector displacements (VD) determined for each pixel during the raw image registration step ( Chapter 5 ). These vectors are unique for each science image and can be recovered from the information in the binary table extension to the final VD FITS file.

Karen Levay