SGP/MFRSR/E7 - Low head temperature

A hardware change occurred on 20040922.  Following this change, the head temperature was 
not being well regulated.  The temperature should stay around 40 deg C, but often, 
especially in winter, values less than 35 deg C were observed.

There was never any obvious problems in the irradiance data, but that is not unexpected as 
any issues would be subtle.

It is likely the new Langley style calibrations being employed in the c1 level data will 
account for the lower head temperatures.  Even with this expectation, however, we are 
including c1 streams in this DQR so users are aware of potential issues.

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

• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• Detector Temperature(head_temp)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Logger panel temperature(logger_temp)
• Data Logger Supply Voltage(logger_volt)
• Second Detector Temperature(head_temp2)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• lon(lon)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Hemispheric Irradiance, MFRSR(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• base time(base_time)
• Dummy altitude for Zeb(alt)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• lat(lat)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Hemispheric Broadband Irradiance(hemisp_broadband_raw)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw)
• time(time)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Time offset of tweaks from base_time(time_offset)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)

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

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

SGP/MFRSR/E7 - Missing data

Data are missing and unrecoverable.

• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
• Alltime Narrowband Hemispheric Irradiance, Filter 2(alltime_hemisp_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter6 data(offset_filter6)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
• Offset subtracted from upwelling hemispheric filter4 data(offset_filter4)
• lat(lat)
• Narrowband Hemispheric Irradiance, Filter 4(hemisp_narrowband_filter4_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Narrowband Direct Horizontal Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Alltime Narrowband Hemispheric Irradiance, Filter 1(alltime_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 2(direct_horizontal_narrowband_filter2)
• Offset subtracted from upwelling hemispheric filter3 data(offset_filter3)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime Hemispheric Broadband Irradiance(alltime_hemisp_broadband)
• Hemispheric Broadband Irradiance(hemisp_broadband_raw)
• Offset subtracted from upwelling hemispheric broadband data(offset_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5)
• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5_raw)
• Logger panel temperature(logger_temp)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4_raw)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1(diffuse_hemisp_narrowband_filter1_raw)
• Second Detector Temperature(head_temp2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 6(direct_horizontal_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1_raw)
• Narrowband Direct Horizontal Irradiance, Filter 5(direct_horizontal_narrowband_filter5)
• Direct Horizontal Broadband Irradiance, broadband scale applied(direct_horizontal_broadband)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2_raw)
• lon(lon)
• Narrowband Direct Horizontal Irradiance, Filter 4(direct_horizontal_narrowband_filter4)
• Hemispheric Irradiance, MFRSR(hemisp_broadband)
• time(time)
• Narrowband Hemispheric Irradiance, Filter 1(hemisp_narrowband_filter1)
• base time(base_time)
• Alltime Narrowband Hemispheric Irradiance, Filter 5(alltime_hemisp_narrowband_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Diffuse Hemispheric Broadband Irradiance (Approximate), MFRSR(diffuse_hemisp_broadband)
• Dummy altitude for Zeb(alt)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6)
• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Narrowband Direct Horizontal Irradiance, Filter 1(direct_horizontal_narrowband_filter1)
• Offset subtracted from upwelling hemispheric filter1 data(offset_filter1)
• Narrowband Hemispheric Irradiance, Filter 5(hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3)
• Time offset of tweaks from base_time(time_offset)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)

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