Evolution of the value of the geocentric energy of 2022 NX₁. Captures happen when the value of the geocentric 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. The evolution according to the nominal orbit in Table 1 is shown in black, and those of control or clone orbits with Cartesian vectors separated ±3σ from the nominal values in Table C.1 are displayed in orange and brown, respectively.