Limb-darkening parameters from our MCMC fits. For both, the secondary axis presents feature size in relative scale heights calculated with the equilibrium temperature of the planet and μ = 2.3, which we demonstrate is not representative of the data. Top: results from the night of 2017 July 23. Bottom: results from the night of 2017 August 28. For both, the theoretical values from Claret & Bloemen (2011) are shown in black and our results in red. Points denoted by circles show the first quadratic coefficient and upside down triangles show the second. Our 1σ uncertainty on individual points is shown by the shaded region.