MCMC results of the Hubble diagram fit using three different values of k_max to compute the power spectrum P_θθ for the complete velocity covariance. The fit is performed on the same realization shown in Fig. 2. The dashed black lines show the simulation input value for each parameter. The baseline refers to k_max = 0.2 h⁻¹Mpc as described in Sect. 3. The table shows the median posterior probability, the fitted value, for each parameter and the relative error.