Phase space of one Monte Carlo simulation. On the x-axis, we plot the distance from NGC 1399 in arcminutes, and on the y-axis we plot the velocities of the points in km s⁻¹. The continuous solid and dashed-dotted lines represent the ±3σ_p profiles of the GCs and PNe, respectively, extracted from P+18 (their Fig. 9). The dashed black horizontal line represents the systemic velocity of NGC 1399 (1425 km s⁻¹).