NSA/MFRSR/C1 - Sensor shading problem

Immediately following the post winter re-installation, a shading problem is evident 
between the hours of 1900 and 0200 (spans midnight).  This continues until 4/10/2008 when an 
attempt was made to resolve the problem.  It helped some, but shifted the shading problem 
between the hours of 0200 - 1900.  On 6/19/2008 site maintenance resolved the problem.

• log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter1, Michalsky(michalsky_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter6, Barnard(barnard_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter4, Barnard(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6)
• lon(lon)
• rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband)
• rejected points for the final fit for the Direct Narrowband Filter2, Barnard(barnard_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter6, Barnard(barnard_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1)
• airmass(barnard_airmass)
• rejected points for the final fit for the Direct Narrowband Filter6, Michalsky(michalsky_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter3, Michalsky(michalsky_rejected_filter3)
• log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter4, Barnard(barnard_rejected_filter4)
• Dummy altitude for Zeb(alt)
• Time offset of tweaks from base_time(time_offset)
• rejected points for the final fit for the Direct Broadband, Michalsky(michalsky_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter5, Barnard(barnard_lnI_filter5)
• airmass(michalsky_airmass)
• log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• log(irradiance) for the Direct Broadband, Michalsky(michalsky_lnI_broadband)
• log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5)
• rejected points for the final fit for the Direct Narrowband Filter3, Barnard(barnard_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter1, Barnard(barnard_rejected_filter1)
• lat(lat)
• rejected points for the final fit for the Direct Narrowband Filter5, Michalsky(michalsky_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter2, Michalsky(michalsky_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter4, Michalsky(michalsky_rejected_filter4)
• log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
• base time(base_time)
• rejected points for the final fit for the Direct Narrowband Filter5, Barnard(barnard_rejected_filter5)
• log(irradiance) for the Direct Broadband, Barnard(barnard_lnI_broadband)

• Langley regression Io, Michalsky, Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• Langley regression Io, Michalsky, Direct BroadBand(michalsky_solar_constant_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)
• Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4)
• solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband)
• lat(lat)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(barnard_good_fraction_filter1)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• Dummy altitude for Zeb(alt)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• Langley regression Io, Michalsky, Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• base time(base_time)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6)
• lon(lon)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• Time offset of tweaks from base_time(time_offset)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• Angstrom exponent(michalsky_angstrom_exponent)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• Angstrom exponent(barnard_angstrom_exponent)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3)
• Langley regression Io, Michalsky, Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)

• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Hemispheric Irradiance, MFRSR(hemisp_broadband)
• cosine correction, south to north, filter1(cosine_correction_sn_filter1)
• Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter4)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• cosine correction, west to east, filter1(cosine_correction_we_filter1)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• cosine correction, south to north, filter3(cosine_correction_sn_filter3)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Azimuth angle(azimuth_angle)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter6)
• cosine correction, south to north, filter5(cosine_correction_sn_filter5)
• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• Second Detector Temperature(head_temp2)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• cosine correction, west to east, filter5(cosine_correction_we_filter5)
• Cosine correction applied to direct_horizontal_narrowband_filter6(computed_cosine_correction_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• cosine correction, west to east, filter3(cosine_correction_we_filter3)
• Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_broadband)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Normalized filter function data, filter 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Air mass(airmass)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• time(time)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Normalized filter function data, filter 3, wavelength value obtained during
  bench calibrations(wavelength_filter3)
• Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Ratio of direct_normal_narrowband_filter5 to diffuse_hemisp_narrowband_filter5(direct_diffuse_ratio_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter2)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• cosine correction, south to north, filter2(cosine_correction_sn_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• lon(lon)
• base time(base_time)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• Dummy altitude for Zeb(alt)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• cosine correction, south to north, filter4(cosine_correction_sn_filter4)
• Solar zenith angle(solar_zenith_angle)
• Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband)
• cosine correction, south to north, broadband channel(cosine_correction_sn_broadband)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter5)
• Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• angle of incidence during cosine bench measurements(bench_angle)
• Logger panel temperature(logger_temp)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Cosine correction applied to direct_horizontal_narrowband_filter1(computed_cosine_correction_filter1)
• Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• cosine correction, west to east, filter2(cosine_correction_we_filter2)
• Cosine correction applied to direct_horizontal_narrowband_filter5(computed_cosine_correction_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• cosine correction, west to east, filter4(cosine_correction_we_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• Normalized filter function data, filter 4, wavelength value obtained during
  bench calibrations(wavelength_filter4)
• lat(lat)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6)
• cosine correction, south to north, filter6(cosine_correction_sn_filter6)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Time offset of tweaks from base_time(time_offset)
• cosine correction, west to east, broadband channel(cosine_correction_we_broadband)
• Elevation Angle(elevation_angle)
• cosine correction, west to east, filter6(cosine_correction_we_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2)
• Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3)
• Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter3)
• Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4)

• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Second Detector Temperature(head_temp2)
• Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3)
• cosine correction, west to east, filter1(cosine_correction_we_filter1)
• angle of incidence during cosine bench measurements(bench_angle)
• Cosine correction applied to direct_horizontal_narrowband_filter1(computed_cosine_correction_filter1)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Solar zenith angle(solar_zenith_angle)
• Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter4)
• Rayleigh optical depth adjusted for surface pressure for filter 5(Rayleigh_optical_depth_filter5)
• cosine correction, west to east, filter6(cosine_correction_we_filter6)
• Rayleigh optical depth adjusted for surface pressure for filter 3(Rayleigh_optical_depth_filter3)
• Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter2)
• Elevation Angle(elevation_angle)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_broadband)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• cosine correction, south to north, broadband channel(cosine_correction_sn_broadband)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
• Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter6)
• Top of atmosphere direct normal solar irradiance(TOA_irradiance)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• Flag determined using cloud screen algorithm(variability_flag)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband)
• solar constant corrected for solar distance for the Direct Narrowb and Filter5(Io_filter5)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• cosine correction, west to east, broadband channel(cosine_correction_we_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Hemispheric Irradiance, MFRSR(hemisp_broadband)
• cosine correction, south to north, filter2(cosine_correction_sn_filter2)
• cosine correction, west to east, filter3(cosine_correction_we_filter3)
• Wavelength(wavelength)
• surface pressure(surface_pressure)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• solar constant corrected for solar distance for the Direct Narrowb and Filter2(Io_filter2)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Hemispheric Broadband Irradiance(hemisp_broadband_raw)
• time(time)
• solar constant corrected for solar distance for the Direct Narrowb and Filter4(Io_filter4)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• sun to earth distance(sun_to_earth_distance)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw)
• lon(lon)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Time offset of tweaks from base_time(time_offset)
• Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband)
• cosine correction, south to north, filter5(cosine_correction_sn_filter5)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• lat(lat)
• base time(base_time)
• Ratio of direct_normal_narrowband_filter5 to diffuse_hemisp_narrowband_filter5(direct_diffuse_ratio_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Rayleigh optical depth adjusted for surface pressure for filter 1(Rayleigh_optical_depth_filter1)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3)
• Cosine correction applied to direct_horizontal_narrowband_filter5(computed_cosine_correction_filter5)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• total optical depth direct narrowband filter 2(total_optical_depth_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• Logger panel temperature(logger_temp)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• cosine correction, west to east, filter5(cosine_correction_we_filter5)
• Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2)
• Rayleigh optical depth adjusted for surface pressure for filter 2(Rayleigh_optical_depth_filter2)
• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4)
• Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter3)
• Ratio of direct_normal_narrowband_filter1 to diffuse_hemisp_narrowband_filter1(direct_diffuse_ratio_filter1)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw)
• Cosine correction applied to direct_horizontal_narrowband_filter6(computed_cosine_correction_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw)
• Ozone column amount from TOMS satellite(Ozone_column_amount)
• Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter1)
• Rayleigh optical depth adjusted for surface pressure for filter 4(Rayleigh_optical_depth_filter4)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter5)
• Azimuth angle(azimuth_angle)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Air mass(airmass)
• cosine correction, south to north, filter3(cosine_correction_sn_filter3)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Normalized filter function data, filter 4, wavelength value obtained during
  bench calibrations(wavelength_filter4)
• cosine correction, west to east, filter4(cosine_correction_we_filter4)
• solar constant corrected for solar distance for the Direct Narrowb and Filter3(Io_filter3)
• angstrom exponent(angstrom_exponent)
• cosine correction, west to east, filter2(cosine_correction_we_filter2)
• cosine correction, south to north, filter1(cosine_correction_sn_filter1)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• solar constant corrected for solar distance for the Direct Narrowb and Filter1(Io_filter1)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Normalized filter function data, filter 3, wavelength value obtained during
  bench calibrations(wavelength_filter3)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Ratio of direct_normal_narrowband_filter4 to diffuse_hemisp_narrowband_filter4(direct_diffuse_ratio_filter4)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Data Logger Supply Voltage(logger_volt)
• Normalized filter function data, filter 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Ratio of direct_normal_narrowband_filter2 to diffuse_hemisp_narrowband_filter2(direct_diffuse_ratio_filter2)
• cosine correction, south to north, filter6(cosine_correction_sn_filter6)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Detector Temperature(head_temp)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Dummy altitude for Zeb(alt)
• cosine correction, south to north, filter4(cosine_correction_sn_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)

• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)

• null(Raw data stream - documentation not supported)

NSA/NIMFR/C1 - Instrument problem - Tube heater not functioning properly.

The instrument was installed after winter calibration and the tube heater was found to be 
operating erratically.  The purpose of the heating the tube is to keep condensation from 
forming on the window.	Though erratic, the tube temperature was generally warm enough 
that no condensation should have formed.  There was never any evidence of this in the 
irradiance data.  Since it is not believed to have affected the adversely, this DQR is being 
assigned as transparent.

• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Detector Temperature(head_temp)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• time(time)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• lon(lon)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Narrowband Irradiance, Filter 5, raw data as read(direct_normal_narrowband_filter5_raw)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Dummy altitude for Zeb(alt)
• Second Detector Temperature(head_temp2)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Direct Normal Narrowband Irradiance, Filter 6, raw data as read(direct_normal_narrowband_filter6_raw)
• lat(lat)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Direct Normal Narrowband Irradiance, Filter 4, raw data as read(direct_normal_narrowband_filter4_raw)
• Tube Temperature(tube_temp)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Direct Normal Narrowband Irradiance, Filter 2, raw data as read(direct_normal_narrowband_filter2_raw)
• Direct Normal Broadband Irradiance, raw data as read(direct_normal_broadband_raw)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Direct Normal Narrowband Irradiance, Filter 3, raw data as read(direct_normal_narrowband_filter3_raw)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Data Logger Supply Voltage(logger_volt)
• base time(base_time)
• Direct Normal Narrowband Irradiance, Filter 1, raw data as read(direct_normal_narrowband_filter1_raw)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)

• Second Detector Temperature(head_temp2)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• lat(lat)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Normalized filter function data, filter 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• Dummy altitude for Zeb(alt)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• base time(base_time)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Data Logger Supply Voltage(logger_volt)
• Elevation Angle(elevation_angle)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Solar zenith angle(solar_zenith_angle)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Normalized filter function data, filter 3, wavelength value obtained during
  bench calibrations(wavelength_filter3)
• Normalized filter function data, filter 4, wavelength value obtained during
  bench calibrations(wavelength_filter4)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• lon(lon)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Tube Temperature(tube_temp)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Air mass(airmass)
• Azimuth angle(azimuth_angle)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Detector Temperature(head_temp)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• time(time)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)

• null(Raw data stream - documentation not supported)

• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• angstrom exponent(angstrom_exponent)
• Elevation Angle(elevation_angle)
• sun to earth distance(sun_to_earth_distance)
• Dummy altitude for Zeb(alt)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• Rayleigh optical depth adjusted for surface pressure for filter 3(Rayleigh_optical_depth_filter3)
• Direct Normal Narrowband Irradiance, Filter 1, raw data as read(direct_normal_narrowband_filter1_raw)
• Rayleigh optical depth adjusted for surface pressure for filter 2(Rayleigh_optical_depth_filter2)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• time(time)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Direct Normal Narrowband Irradiance, Filter 2, raw data as read(direct_normal_narrowband_filter2_raw)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• solar constant corrected for solar distance for the Direct Narrowb and Filter3(Io_filter3)
• Flag determined using cloud screen algorithm(variability_flag)
• total optical depth direct narrowband filter 2(total_optical_depth_filter2)
• Tube Temperature(tube_temp)
• solar constant corrected for solar distance for the Direct Narrowb and Filter2(Io_filter2)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• solar constant corrected for solar distance for the Direct Narrowb and Filter4(Io_filter4)
• Wavelength(wavelength)
• Direct Normal Broadband Irradiance, raw data as read(direct_normal_broadband_raw)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• lon(lon)
• Rayleigh optical depth adjusted for surface pressure for filter 5(Rayleigh_optical_depth_filter5)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Rayleigh optical depth adjusted for surface pressure for filter 1(Rayleigh_optical_depth_filter1)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• Azimuth angle(azimuth_angle)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Rayleigh optical depth adjusted for surface pressure for filter 4(Rayleigh_optical_depth_filter4)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• solar constant corrected for solar distance for the Direct Narrowb and Filter5(Io_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• lat(lat)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• Solar zenith angle(solar_zenith_angle)
• surface pressure(surface_pressure)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Ozone column amount from TOMS satellite(Ozone_column_amount)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Normalized filter function data, filter 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• Direct Normal Narrowband Irradiance, Filter 6, raw data as read(direct_normal_narrowband_filter6_raw)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Second Detector Temperature(head_temp2)
• Normalized filter function data, filter 3, wavelength value obtained during
  bench calibrations(wavelength_filter3)
• Direct Normal Narrowband Irradiance, Filter 4, raw data as read(direct_normal_narrowband_filter4_raw)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• solar constant corrected for solar distance for the Direct Narrowb and Filter1(Io_filter1)
• Normalized filter function data, filter 4, wavelength value obtained during
  bench calibrations(wavelength_filter4)
• Detector Temperature(head_temp)
• Air mass(airmass)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 5, raw data as read(direct_normal_narrowband_filter5_raw)
• Top of atmosphere direct normal solar irradiance(TOA_irradiance)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Direct Normal Narrowband Irradiance, Filter 3, raw data as read(direct_normal_narrowband_filter3_raw)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• base time(base_time)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Data Logger Supply Voltage(logger_volt)

• rejected points for the final fit for the Direct Narrowband Filter6, Barnard(barnard_rejected_filter6)
• rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband)
• log(irradiance) for the Direct Broadband, Barnard(barnard_lnI_broadband)
• rejected points for the final fit for the Direct Narrowband Filter2, Barnard(barnard_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter5, Barnard(barnard_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter4, Barnard(barnard_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter6, Michalsky(michalsky_rejected_filter6)
• Dummy altitude for Zeb(alt)
• log(irradiance) for the Direct Narrowband Filter5, Barnard(barnard_lnI_filter5)
• rejected points for the final fit for the Direct Narrowband Filter3, Barnard(barnard_rejected_filter3)
• log(irradiance) for the Direct Narrowband Filter6, Barnard(barnard_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter2, Michalsky(michalsky_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter3, Michalsky(michalsky_rejected_filter3)
• log(irradiance) for the Direct Broadband, Michalsky(michalsky_lnI_broadband)
• log(irradiance) for the Direct Narrowband Filter1, Michalsky(michalsky_lnI_filter1)
• lat(lat)
• rejected points for the final fit for the Direct Narrowband Filter4, Michalsky(michalsky_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter5, Michalsky(michalsky_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Broadband, Michalsky(michalsky_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
• rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1)
• base time(base_time)
• Time offset of tweaks from base_time(time_offset)
• log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4)
• lon(lon)
• time(time)
• log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter4, Barnard(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3)
• airmass(barnard_airmass)
• rejected points for the final fit for the Direct Narrowband Filter1, Barnard(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3)
• airmass(michalsky_airmass)

• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2)
• Langley regression Io, Michalsky, Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• time(time)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• Dummy altitude for Zeb(alt)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• Time offset of tweaks from base_time(time_offset)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• Barnard computed sun to earth distance(barnard_sun_earth_distance)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• Angstrom exponent(michalsky_angstrom_exponent)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• Langley regression Io, Michalsky, Direct BroadBand(michalsky_solar_constant_broadband)
• Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• lon(lon)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• base time(base_time)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• Angstrom exponent(barnard_angstrom_exponent)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• Langley regression Io, Michalsky, Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• Michalsky computed sun to earth distance(michalsky_sun_earth_distance)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• Average atmospheric pressure used for Rayleigh calculations(atmospheric_pressure)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4)
• lat(lat)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(barnard_good_fraction_filter1)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)

NSA/NIMFR/C1 - Instrument heater not functioning

For a short period the instrument heater was not functioning.  Do not use data covered by 
this DQR.

• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Detector Temperature(head_temp)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• time(time)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• lon(lon)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Narrowband Irradiance, Filter 5, raw data as read(direct_normal_narrowband_filter5_raw)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Dummy altitude for Zeb(alt)
• Second Detector Temperature(head_temp2)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Direct Normal Narrowband Irradiance, Filter 6, raw data as read(direct_normal_narrowband_filter6_raw)
• lat(lat)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Direct Normal Narrowband Irradiance, Filter 4, raw data as read(direct_normal_narrowband_filter4_raw)
• Tube Temperature(tube_temp)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Direct Normal Narrowband Irradiance, Filter 2, raw data as read(direct_normal_narrowband_filter2_raw)
• Direct Normal Broadband Irradiance, raw data as read(direct_normal_broadband_raw)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Direct Normal Narrowband Irradiance, Filter 3, raw data as read(direct_normal_narrowband_filter3_raw)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Data Logger Supply Voltage(logger_volt)
• base time(base_time)
• Direct Normal Narrowband Irradiance, Filter 1, raw data as read(direct_normal_narrowband_filter1_raw)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)

• Second Detector Temperature(head_temp2)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• lat(lat)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Normalized filter function data, filter 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• Dummy altitude for Zeb(alt)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• base time(base_time)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Data Logger Supply Voltage(logger_volt)
• Elevation Angle(elevation_angle)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Solar zenith angle(solar_zenith_angle)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Normalized filter function data, filter 3, wavelength value obtained during
  bench calibrations(wavelength_filter3)
• Normalized filter function data, filter 4, wavelength value obtained during
  bench calibrations(wavelength_filter4)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• lon(lon)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Tube Temperature(tube_temp)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Air mass(airmass)
• Azimuth angle(azimuth_angle)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Detector Temperature(head_temp)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• time(time)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)

• null(Raw data stream - documentation not supported)

• Direct Normal Broadband Irradiance broadband scale applied(direct_normal_broadband)
• angstrom exponent(angstrom_exponent)
• Elevation Angle(elevation_angle)
• sun to earth distance(sun_to_earth_distance)
• Dummy altitude for Zeb(alt)
• Direct Normal Narrowband Irradiance, Filter 2(direct_normal_narrowband_filter2)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• Rayleigh optical depth adjusted for surface pressure for filter 3(Rayleigh_optical_depth_filter3)
• Direct Normal Narrowband Irradiance, Filter 1, raw data as read(direct_normal_narrowband_filter1_raw)
• Rayleigh optical depth adjusted for surface pressure for filter 2(Rayleigh_optical_depth_filter2)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• time(time)
• Direct Normal Narrowband Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 4(direct_normal_narrowband_filter4)
• Direct Normal Narrowband Irradiance, Filter 2, raw data as read(direct_normal_narrowband_filter2_raw)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• solar constant corrected for solar distance for the Direct Narrowb and Filter3(Io_filter3)
• Flag determined using cloud screen algorithm(variability_flag)
• total optical depth direct narrowband filter 2(total_optical_depth_filter2)
• Tube Temperature(tube_temp)
• solar constant corrected for solar distance for the Direct Narrowb and Filter2(Io_filter2)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• solar constant corrected for solar distance for the Direct Narrowb and Filter4(Io_filter4)
• Wavelength(wavelength)
• Direct Normal Broadband Irradiance, raw data as read(direct_normal_broadband_raw)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• lon(lon)
• Rayleigh optical depth adjusted for surface pressure for filter 5(Rayleigh_optical_depth_filter5)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Rayleigh optical depth adjusted for surface pressure for filter 1(Rayleigh_optical_depth_filter1)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• Azimuth angle(azimuth_angle)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Narrowband Irradiance, Filter 3(direct_normal_narrowband_filter3)
• Rayleigh optical depth adjusted for surface pressure for filter 4(Rayleigh_optical_depth_filter4)
• Direct Normal Narrowband Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• solar constant corrected for solar distance for the Direct Narrowb and Filter5(Io_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• lat(lat)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• Solar zenith angle(solar_zenith_angle)
• surface pressure(surface_pressure)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Ozone column amount from TOMS satellite(Ozone_column_amount)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Normalized filter function data, filter 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• Direct Normal Narrowband Irradiance, Filter 6, raw data as read(direct_normal_narrowband_filter6_raw)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Second Detector Temperature(head_temp2)
• Normalized filter function data, filter 3, wavelength value obtained during
  bench calibrations(wavelength_filter3)
• Direct Normal Narrowband Irradiance, Filter 4, raw data as read(direct_normal_narrowband_filter4_raw)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• solar constant corrected for solar distance for the Direct Narrowb and Filter1(Io_filter1)
• Normalized filter function data, filter 4, wavelength value obtained during
  bench calibrations(wavelength_filter4)
• Detector Temperature(head_temp)
• Air mass(airmass)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Direct Normal Narrowband Irradiance, Filter 5, raw data as read(direct_normal_narrowband_filter5_raw)
• Top of atmosphere direct normal solar irradiance(TOA_irradiance)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Direct Normal Narrowband Irradiance, Filter 3, raw data as read(direct_normal_narrowband_filter3_raw)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• base time(base_time)
• Cosine of Solar Zenith Angle(cosine_solar_zenith_angle)
• Direct Normal Narrowband Irradiance, Filter 6(direct_normal_narrowband_filter6)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Data Logger Supply Voltage(logger_volt)

• rejected points for the final fit for the Direct Narrowband Filter6, Barnard(barnard_rejected_filter6)
• rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband)
• log(irradiance) for the Direct Broadband, Barnard(barnard_lnI_broadband)
• rejected points for the final fit for the Direct Narrowband Filter2, Barnard(barnard_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter5, Barnard(barnard_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter4, Barnard(barnard_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter6, Michalsky(michalsky_rejected_filter6)
• Dummy altitude for Zeb(alt)
• log(irradiance) for the Direct Narrowband Filter5, Barnard(barnard_lnI_filter5)
• rejected points for the final fit for the Direct Narrowband Filter3, Barnard(barnard_rejected_filter3)
• log(irradiance) for the Direct Narrowband Filter6, Barnard(barnard_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter2, Michalsky(michalsky_rejected_filter2)
• rejected points for the final fit for the Direct Narrowband Filter3, Michalsky(michalsky_rejected_filter3)
• log(irradiance) for the Direct Broadband, Michalsky(michalsky_lnI_broadband)
• log(irradiance) for the Direct Narrowband Filter1, Michalsky(michalsky_lnI_filter1)
• lat(lat)
• rejected points for the final fit for the Direct Narrowband Filter4, Michalsky(michalsky_rejected_filter4)
• rejected points for the final fit for the Direct Narrowband Filter5, Michalsky(michalsky_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Broadband, Michalsky(michalsky_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
• rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1)
• base time(base_time)
• Time offset of tweaks from base_time(time_offset)
• log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4)
• lon(lon)
• time(time)
• log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter4, Barnard(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3)
• airmass(barnard_airmass)
• rejected points for the final fit for the Direct Narrowband Filter1, Barnard(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3)
• airmass(michalsky_airmass)

• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter4(michalsky_number_points_filter4)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• number of points used in final linear fit for the Direct Narrowband Filter2(michalsky_number_points_filter2)
• Langley regression Io, Michalsky, Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• time(time)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter1(michalsky_number_points_filter1)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• Dummy altitude for Zeb(alt)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• Time offset of tweaks from base_time(time_offset)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• Barnard computed sun to earth distance(barnard_sun_earth_distance)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter3(michalsky_number_points_filter3)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• Angstrom exponent(michalsky_angstrom_exponent)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• Langley regression Io, Michalsky, Direct BroadBand(michalsky_solar_constant_broadband)
• Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter4(barnard_number_points_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• lon(lon)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(barnard_good_fraction_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• base time(base_time)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• Angstrom exponent(barnard_angstrom_exponent)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(barnard_good_fraction_filter4)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• Langley regression Io, Michalsky, Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• number of points used in final linear fit for the Direct Narrowband Filter3(barnard_number_points_filter3)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• Michalsky computed sun to earth distance(michalsky_sun_earth_distance)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• Average atmospheric pressure used for Rayleigh calculations(atmospheric_pressure)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4)
• lat(lat)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(barnard_good_fraction_filter1)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)