Example output for a simulation that resulted in both moonlets infalling (colliding with the proto-Earth). The initial mass of the inner (blue) and outer (green) moonlets is 0.23 and 0.32 M_l, respectively. The rotational period and obliquity of the proto-Earth is shown in orange in subplots (a) and (d). The system evolves through several resonances and close encounters before a close encounter results in both moonlets infalling.