GalSim PSFs, unconvolved with the Roman pixel response, at the center of each SCA. All PSFs are oversampled by a factor of 9. This plot is formatted to reflect Roman’s detector shape and SCA arrangement. Note that for the bottom two rows of the detector, the x-axis is defined such that the origin is at the bottom-right corner of the detectors, and positive x points left (M. A. Troxel et al. 2023).