fy/fz vs. fx/fz for 0.1 million particles with E = −2 in the 3D simulation. Pyramids are denoted by red dots, saucers by green dots, and others by blue dots. Both saucers and pyramids have ﹩{fy}/{fz}\lt 1﹩ and ﹩{fx}/{fz}\lt 1﹩ and small angular momentum. The angular momentum of saucers are ﹩1.75\times {10}^{-4}\lt {L}_{\mathrm{min}}\lt 0.0035﹩, while that of the pyramids are ﹩{L}_{\mathrm{min}}\lt =1.75\times {10}^{-4}﹩. In this energy slice, the saucers are 15% and the pyramids are 6%. Since these are resonant orbits, they will lie on a distinct line in this frequency map. We mark notable resonance lines by (u, v, w), which correspond to integers and are coefficients of the equation ﹩u\cdot {fx}+v\cdot {fy}+w\cdot {fz}=0﹩. Pyramids mainly lie on lines (1, −3, 1) (1, −5, 2), (0, 2, −1), (1, 5, −3) and (1, 3, −2), while saucers are present on (15, −1, 0), (1, −15, 0), (1, 1, −1) and (1, −1, 0).