All Sky Photometer for NearSys Station, 10 February 2018

Photometer data was collected starting later than usual, at 7:52 AM MST rather than prior to 6:00 AM. It was a clear day with few if any clouds. However, since data collection began after dawn, the sky only brighten by a factor of two over the day.

This is a good reason to standardize the photometer readings, it would permit different days to be compared to each other.