Inference of the systemic velocity and velocity dispersion of UDG 11 using its four GCs as dynamical tracers. The corner plot presents the results of an MCMC fit to the GC velocities, assuming uniform priors on both systemic velocity and velocity dispersion (σ_GC). The top panel shows the posterior distribution of the systemic velocity, the bottom-right panel shows the velocity dispersion distribution, and the bottom-left panel displays the correlation between the two parameters.