Fix twilight shading on plot
Fix twilight shading on plot

panoptes/POCS,panoptes/POCS,panoptes/POCS,panoptes/environmental-analysis-system,AstroHuntsman/POCS,AstroHuntsman/POCS,panoptes/POCS,AstroHuntsman/POCS,panoptes/PEAS,AstroHuntsman/POCS