Top panel: evolution of the Keplerian Saturnocentric energy of 2013 VZ₇₀. Satellite captures happen when the relative binding energy becomes negative. The unit of energy is such that the unit of mass is 1 M_⊙, the unit of distance is 1 AU, and the unit of time is one sidereal year divided by 2π. Bottom panel: path followed by 2013 VZ₇₀ (which moves counterclockwise) in a frame of reference centered on the Sun (in yellow) and rotating with Saturn (in brown, its orbit in black), projected onto the ecliptic plane, during the time interval (950, 1200) yr, shown in pink. The output time-step size is 0.01 yr.