Marginalized distributions of kinematic parameters v₀ sin i, w₀ sin i and redshift z for 500 realizations of a Gaussian noise with PSNR of 40. Blue lines show input values for the simulation, the dashed lines show the 16th, 50th and 84th percentiles of the posterior distribution. Red lines (resp. shadded region) indicate fit result (resp. ±1σ error band) derived from the fiducial noise realization.