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Photometry and astrometry with JWST‑II: NIRCam distortion correction

Bedin, L. R.; Nardiello, D.; Griggio, M.

In preparation to make the most of our own planned James Webb Space Telescope investigations, we take advantage of publicly available calibration and early‑science observations to independently derive and test a geometric‑distortion solution for NIRCam detectors. Our solution is able to correct the distortion to better than 0.2 mas. Current data i…