Cohesion versus density curves for our three targets obtained using the Drucker-Prager criterion for failure. Red and blue curves correspond to (38615) and (228155), respectively. Dashed and solid curves correspond to friction angles of ϕ = 40 and 45°, respectively. The shaded areas represent the cohesion curves of (13383) allowed by the uncertainties in absolute magnitude and albedo determination: ϕ = 40° (striped) and ϕ = 45° (solid grey). The light grey area represents the typical cohesion range of lunar regolith, while the horizontal dashed line shows the upper limit of the most compacted lunar regolith (≤ 3kPa; Mitchell et al. 1974). Purple and orange symbols represent the densities obtained for the binaries (617) Patroclus-Menoetius and (3548) Eurybates-Queta (Berthier et al. 2020; Brown et al. 2021), but without cohesion estimates.