As in Fig. 2 but showing a case with a more elongated target and different rotation axis and impactor properties. The final shape is shown in Fig. 5. Initial conditions: off axis (impact point + dx; see Fig. 1) impact of a R_p = 100 m impactor with a velocity of V = 250 m/s on a target with axis ratio 0.4 (mass M_t = 4.7 × 10¹² kg) and rotation period of T = 9 h. The rotation axis is along the −y axis (see Fig. 1).