Histograms of (a) impact velocity, (b) impact angle of merging impacts between moonlets, (c) the initial semimajor axis of the product of a merger between two moonlets, a_m, computed immediately after the merger, (d) the ratio of a_m to the initial semimajor axis of the outer moonlet, ﹩{a}_{{\mathsf{outer}}}﹩, (e) the time a two-moonlet system evolves until a moonlet is destroyed or the moonlets merge, and (f) the mean inclination of each merged moonlet after the merger, for simulations in which both moonlets were prograde (the mean standard deviation of the post-merger inclination was ∼6°.