Typical pyramid orbit emerged in the Galaxy and 3D simulations. The three panels from left to right show the projection of the pyramid orbit in the x–y, x–z, and r–z plane, respectively, where ﹩r=\sqrt{{x}^{2}+{y}^{2}}﹩. Note the hole in the x–y plane projection of the saucer orbit, which is not present in the pyramid orbit.