Top: UVS spectrum observed in region 7 (in gray). The blue, red, and green spectra are respectively the best fits obtained by considering a monoenergetic distribution, a Maxwellian distribution, and a kappa distribution. The estimated parameters [〈E〉, ψ] obtained from these fits with our model are shown in the legend. Bottom: residuals of the best fit for each type of electron energy flux distribution. For each distribution type, this residual is calculated by subtracting the best fit from the observed spectrum.