Overview of best-fit models of the (130) system for the pair of fixed parameters: oblateness C_20,1 and tidal time lag Δt₁ (Brož et al. 2022a) of the central body. All other parameters were free. Each of the 147 models was converged for up to 1000 iterations, that is 147 000 models in total. The χ² values are plotted as colours: cyan corresponds to the overall best fit, blue to good fits (1.2 times the best fit), orange to poor fits (1.5). The four panels correspond to the χ² contributions: astrometry (SKY), relative astrometry of the moons (SKY2), silhouettes of the central body (AO), and the weighted sum of them.