Detailed trajectories that have interactions with the GalC in the three planes (X, Y), (X, Z), and (R, Z) (where R is the planar Galactocentric radius) inside the box 100×100 pc. The GCs (from top to bottom): NGC 6401 and NGC 6981 in #411321 TNG-TVP potential. The colour line presents the trajectory based on the data from the catalogues. The grey lines take the measurement errors into account.