Detectability of eps Eri b in the optimistic CGI scenario with the orbital parameters from Mawet et al. (2019; top panel) and Benedict et al. (2006; bottom panel). Left column: F_p ∕F_⋆ -Δθ diagram. Yellow lines are specific to the maximum-likelihood orbital configuration providedin the corresponding reference. Middle column: the posterior distributions of α_obs. Right column: variation of α with timefor each orbital realization. In this panel, green regions correspond to detectability windows for the maximum-likelihood orbit (yellow line). All orbital realizations are shown for reference in the α-t diagram (black lines), but their corresponding detectability windows are omitted.