Evolution of a ﹩2\cdot {10}^{25}\;{\rm{g}}﹩ planetesimal over 1 Myr staring on inclined orbits. Solid lines correspond to orbits with initially low inclination ﹩I=0.05\;\mathrm{rad},﹩ and dashed lines represent orbits with initially high inclination ﹩I=0.15\;\mathrm{rad}.﹩ Top left: evolution of the semimajor axis. Top right: evolution of the eccentricity. Note the logarithmic scale. Bottom left: evolution of the inclination. Bottom right: evolution of the Mach number. Note the logarithmic scale.