Two-layer model of 16 Psyche’s interior. Panel (A): The core is assumed spherical. The core becomes partially exposed for core radii greater than r_min  =  79 km, indicated by the dashed white line. Panel (B): The core’s shape is a rescaled outer shape. The core radius refers to the volume-equivalent spherical core radius. Black contour lines show dynamic flattening H and the red contour lines show the J₂ gravity coefficient. The gray dashed contour lines show levels of constant outer density. The outer layer density is found by satisfying the mean density of Psyche.