Cloud coverage: the new formula is taken from the AAG Cloudwatcher for comparison (cloudy limit set to -8°C, overcast set to -1°C)
The sky is Clear
Station battery level
Sky Quality Meter (Reported by a SQM-LE)
Sky Quality Meter (Station) - Calibration with SQM-LE / Calibration with internal temperature / 20° FoV lens
In the previous graph, MSAS values < 5.89 are cut down to 0 by SQM-LE (photodiode saturation)