Offset of the RA (top) and Dec (bottom) centroid of the isophotal or isodensity elliptical contours in all four images and the intracluster GCs map. The ∆ RA = 0 and ∆ Dec = 0 points are defined as the position of the nucleus of the BCG in the H_E image. Positive ∆ RA are counted westward. The vertical line indicates the radius a = 11′ beyond which remaining cirrus could alter the profiles of the ICL (see Appendix A).