Straylight target pinhole power spectra in the x direction, affected by the 64 tilt. Angular averages within  ± 22.5° wide sectors centered on the axis directions. Calculated using a 1024 × 1024-pixel subfield of the detector FOV. NB: original, corrected with theoretical MTF, and corrected with measured MTF (or OTF, the corrected powers are the same). WB for comparison (covered by the NB compensated line). The TRIPPEL measured profile was used for the theoretical correction. Using the theoretical profile gives even less correction.