Notes. The values of the bulk density and the mass production rate for lunar-ejected particles are from Solomon (1974) and Pokornỳ et al. (2019), respectively. The variables r_min and r_max are the minimum and maximum radii of lunar-ejected particles. The variables v_min and v_max are the minimum and maximum ejection velocities, the values of which are from the measurement of the LDEX (Horányi et al. 2015), and v_esc is the escape velocity from the lunar surface.