Example spectrum for the scattered moonlight determination. The observed spectrum (dark gray) was taken during Run B at ρ = 45°. Overlaid is an example of the current total sky background model (green) with the sky lines removed for clarity. Also shown are the inclusion regions for the analysis (pink filled circles). The scattered moonlight model (blue) and the other model components (orange dotted), except the sky lines, are also shown. Below the dotted black line is the transmission curve (light green).