Left panel: Kinematic fit using power-law and composite models. Red and blue central dots show the best-fit values, while error bars are the 16th and 84th percentiles of 100 predicted velocity dispersions. Right panel: Posterior of D_d and D_Δt using kinematics based on the power-law and composite mass models. Using likelihood weighting we measured $D_{\mathrm{\Delta }t}={5083}_{487}^{+504}$ Mpc and $D_{\mathrm{d}}={1921}_{-236}^{+254}$ Mpc.