Relation between the final orbital period of the outer quadruple system ([[0 1][2 3]]) and the initial semimajor axis of the incoming binary (a₁)in 2+3 encounters that resulted in a quadruple-single configuration. The red vertical line indicates a period of 1 × 10⁶ days, which is close to the orbital timescale inferred from the projected separation of the resolved components of S1082 (390 AU).