Evolution of the GC orbits during a 5 Gyr lookback integration for NGC 7099 and NGC 5286. The left and centre panels show the orbits of GCs in X-Y and X-Z projections. Right panels show the GCs’ evolution in terms of specific energy (E) with angular momentum L_tot. The most probable orbit (middle values from Baumgardt & Vasiliev 2021) marked as green line – ‘Orbit’. Other orbits marked as ‘rand’ are random seeds in initial conditions for R_⊙, R_V, µ_α, and µ_δ, which are presented in Table A.1.