Top left: ΔP_L between polarimetric maps made from images taken several seconds apart, using the distortion correction method. Top right: ΔP_L of maps produced from the same images, but with our shifting method and no distortion correction. Bottom left: ΔP_L across Jupiter’s central meridian of the maps produced with the distortion correction. Bottom right: ΔP_L across Jupiter’s central meridian of the maps made without the distortion correction.