Averaged calibrated total flux for observations 1, 2, and 3 in LM bands plus the correlated flux in N band for observation 3. Panels (a) and (b) refer to LM and N bands respectively. SPIPS photosphere model is interpolated at the phase corresponding to the MATISSE the observation with parameters: T_eff(ϕ_obs) = 5014 ± 15 K; log g(ϕ_obs) = 0.96 ± 0.10; and θ_UD(ϕ_obs) = 2.887 ± 0.003 mas. The Spitzer spectrum used in Sect. 2.2 is plotted for comparison.