Number of recovered streams using MCS = 10 vs. the mean heliocentric velocity of Leo I v_hel. Left panel: we apply BEACON varying the v_hel = 285.2 between ±0.31 with steps of 0.0001 km s⁻¹. The maximum number of streams is recovered between 285.196442 <  V_hel <  285.199738 km s⁻¹. Right panel: magnified image of the central region shown in the left panel. The adopted V_hel = 285.1994 km s⁻¹ in our study is shown as a red vertical line.