Shape of the dichroic ghost (left panel) and filter ghost (right panel) as a function of field position. For the dichroic ghosts, the images are made from a median combination of 60 × 60 pixel (18″ × 18″) cutouts based on a 20-fold binning on the FPA, restricted to a single magnitude bin in H_E band. For the filter ghosts, the images are made from a median combination of 80 × 80 pixel (24″ × 24″) cutouts on a 20-fold binning on the FPA, restricted to a single magnitude bin in the Y_E band. The number of cutouts used to create each median is given in the top right of each median cutout. For the blank square we could not find suitable stars within that region of the FPA. The artefacts, such as arcs, streaks, or circular residuals resulting from inadequate masking in the individual images, are caused by having data from few ghosts.