Relative differences to the CMS DR2 solutions by Wisdom & Hubbard (2016) of the gravitational moments J₂ (top) and J₈ (bottom) compared to our ToF solutions. We depict results for different numbers N of used spheroids. We compare our implementation for different orders of the ToF and show the influence of using spline interpolation with the parameter n_x that stands for the number of points that were calculated without interpolation.