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Fig. 19
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Same as in Fig. 14, but for CTIO data: CALSPEC star HD111980 observed on 2017 May 30 with a blazed Thorlabs grating 300 lines mm−1 (left), for which the PSF is out of focus and deviates from a Moffat model, and an amplitude hologram of 350 lines mm−1 (right), better focused on the CCD.
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