Focused sun corrected with adjacent sky measurements 5 002144 Zenith sky 6 002144 Light source type for Brewer spectrophotometer Focused sun 4 002144 Focused moon 3 002144 Direct sun, attenuator #1 1 002144 Missing value 15 002144 2014-09-03T09:53:52.111Z Direct sun, attenuator #2 2 002144 1 Direct sun 0 002144