NIRISS/SOSS eclipse spectrum of WASP-80 b according to different modeling approaches. Each eclipse depth is shown with its 1σ error bars. The black points represent the reference spectrum used for the analysis. The purple points, shifted by -0.01 μm for clarity, show the spectrum obtained without using a GP model in the light-curve fitting. The inclusion of a GP in the light-curve fit produces more realistic error bars on the spectrum. The green spectrum, shifted by +0.01 μm, follows the same modeling approach as the reference spectrum, but the time of mid-eclipse was fixed to the best-fit value from the white-light-curve fit in which it was allowed to vary. This time is delayed by 12.8 minutes compared to the expected value.