Top panel: cumulative magnitude distribution N(< H) of the Datura family members. The black symbols are all 91 known members (including the largest asteroid (1270) Datura shown by the diamond, but disregarding (429988) 2013 PZ36, whose membership in the family is uncertain); the red symbols are 60 members detected by CSS during the phase 2 operations. The top abscissa indicates an approximate size computed from H with an assumption of p_v = 0.24 value of the geometric albedo. Bottom panel: detection probability p(H) of Datura members as a function of H during the phase 2 operations of CSS based on analysis of geometric and photometric detection factors ran on a large synthetic population of Datura members. We find that p = 1 up to H ≃ 18 magnitude, which sets the limit where the Datura population is complete (dashed line on the upper panel). Beyond this limit p decreases to zero at about 21 magnitude.