Table 3. Data quality flags descriptions

Bit value Description Bit value Description
Bit_0001 Potential OH interference (Low sky brightness) Bit_0032 High CCD temperature
Bit_0002 Zenith Processing Bit_0064 It’s definitely cloudy. Bad
Bit_0004 Laser drift Bit_0128 Critical OH interference (Low sky brightness)
Bit_0008 There isn’t a cloud sensor or it isn’t working Bit_0256 Unreliable Sigma_Fit_LOS wind Sample
Bit_0016 It’s at least a little bit cloudy. Caution. Bit_0512 Unreliable Sigma_T Sample
CCD, charge-coupled device; LOS, line-of-sight.