Properties of run 1 (at t = 4.8 Myr) if rotated by an angle θ = 12° about the x axis. Top left-hand panel: RV distribution (symbols are the same as in Fig. 2); top right-hand panel: distribution of proper motions along z′ (symbols are the same as in the marginal histograms of Fig. 3, in particular pop. A and pop. B correspond to the red and black histogram, respectively); bottom left-hand panel: positions in the xy′ plane (symbols are the same as in Fig. 1, in particular pop. A and pop. B correspond to red crosses and black open circles, respectively); bottom right-hand panel: positions in the xz′ plane (symbols are the same as in Fig. 5, in particular pop. A and pop. B correspond to red crosses and black open circles, respectively).