Dependence of the mass and axis ratios of the largest remnants on the number of SPH particles N_total for the impact with θ_imp = 15° and v_imp = 200 m s⁻¹. Shown are the ratio b∕a (red solid line), the ratio c∕a (green dashed line), and the mass of the largest remnants M_lr normalized by the mass of an initial planetesimal M_target (blue dotted line). The left vertical axis shows the axis ratios, and right vertical axis shows the mass of the largest remnant.