Results from our numerical experiment with 240 000 synthetic pairs 87887–415992 separated at T₀ = 57 400.0 epoch by a low relative velocity v_ej. We numerically propagate their orbits until their configuration was repeated in a deepest close encounter at time t at which the relative velocity of the two asteroids is v_enc (we recall that the integration time span was 3 Myr in which the deepest encounter was sought). The top panel shows v_enc vs. t. The bottom panel shows v_ej vs. v_enc.