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.

• Narrowband hemispheric irradiance, filter 1(hemisp_narrowband_filter1_raw)
• Diffuse narrowband hemispheric irradiance, filter 3(diffuse_hemisp_narrowband_filter3_raw)
• Offset subtracted from hemispheric and diffuse broadband data(offset_broadband)
• Data Logger Temperature(logger_temp)
• Time offset from base_time(time_offset)
• Hemispheric broadband irradiance(hemisp_broadband_raw)
• Diffuse narrowband hemispheric irradiance, filter 6(diffuse_hemisp_narrowband_filter6_raw)
• Hemispheric broadband irradiance(hemisp_broadband)
• Narrowband hemispheric irradiance, filter 4(hemisp_narrowband_filter4_raw)
• Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
• Narrowband hemispheric irradiance, filter 2(hemisp_narrowband_filter2_raw)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6, offset corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband diffuse hemispheric irradiance, filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2, offset corrected(diffuse_hemisp_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband hemispheric irradiance, filter 6, nominal wavelength is 935 nm(hemisp_narrowband_filter6)
• Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
• Narrowband Hemispheric Irradiance, Filter 5, offset corrected(hemisp_narrowband_filter5)
• Narrowband hemispheric irradiance, filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband hemispheric irradiance, filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Offset subtracted from direct normal filter3 data(offset_filter3)
• Offset subtracted from direct normal filter4 data(offset_filter4)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Offset subtracted from hemispheric and diffuse filter6 data(offset_filter6)
• Offset subtracted from hemispheric filter1 data(offset_filter1)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• North Latitude(lat)
• Diffuse narrowband hemispheric irradiance, filter 4(diffuse_hemisp_narrowband_filter4_raw)
• -180.0 - +180.0(alt)
• base time in epoch(base_time)
• lon(lon)
• Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
• Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
• Second detector temperature(head_temp2)
• Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
• Alltime hemispheric broadband irradiance(alltime_hemisp_broadband)
• Diffuse narrowband hemispheric irradiance, filter 1(diffuse_hemisp_narrowband_filter1_raw)
• Detector temperature(head_temp)
• Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
• Alltime narrowband hemispheric irradiance, filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Alltime narrowband hemispheric irradiance, filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime narrowband hemispheric irradiance, filter 2(alltime_hemisp_narrowband_filter2)
• time_in_seconds_since_volume_start(time)
• Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
• Data logger supply voltage(logger_volt)
• Narrowband hemispheric irradiance, filter 5(hemisp_narrowband_filter5_raw)
• Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
• Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)

• Alltime hemispheric broadband irradiance(alltime_hemisp_broadband)
• time_in_seconds_since_volume_start(time)
• Cosine correction, west to east, filter1(cosine_correction_we_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
• cosine correction, west to east, filter2(cosine_correction_we_filter2)
• Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
• cosine correction, west to east, filter3(cosine_correction_we_filter3)
• Cosine correction, west to east, filter4(cosine_correction_we_filter4)
• Cosine correction, west to east, filter5(cosine_correction_we_filter5)
• cosine correction, west to east, filter6(cosine_correction_we_filter6)
• Data logger supply voltage(logger_volt)
• North Latitude(lat)
• -180.0 - +180.0(alt)
• Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3)
• Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2)
• Cosine correction applied to direct_horizontal_filter1(computed_cosine_correction_filter1)
• Cosine correction applied to direct_horizontal_filter6(computed_cosine_correction_filter6)
• Cosine correction applied to direct_horizontal_filter5(computed_cosine_correction_filter5)
• Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4)
• Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
• Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
• Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)
• Ratio of direct_normal_filter1 to diffuse_hemisp_filter1(direct_diffuse_ratio_filter1)
• Data Logger Temperature(logger_temp)
• Time offset from base_time(time_offset)
• Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband)
• Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
• Alltime narrowband hemispheric irradiance, filter 1(alltime_hemisp_narrowband_filter1)
• Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
• Alltime narrowband hemispheric irradiance, filter 2(alltime_hemisp_narrowband_filter2)
• Alltime narrowband hemispheric irradiance, filter 5(alltime_hemisp_narrowband_filter5)
• Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
• Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
• Air mass(airmass)
• Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband)
• Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
• Hemispheric broadband irradiance(hemisp_broadband)
• Narrowband hemispheric irradiance, filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband hemispheric irradiance, filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband hemispheric irradiance, filter 6, nominal wavelength is 935 nm(hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 5, offset corrected(hemisp_narrowband_filter5)
• Normalized filter function data, filter 5, wavelength value obtained during
  bench calibrations(wavelength_filter5)
• Normalized filter function data, filter 6, wavelength value obtained during
  bench calibrations(wavelength_filter6)
• 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 1, wavelength value obtained during
  bench calibrations(wavelength_filter1)
• Normalized filter function data, filter 2, wavelength value obtained during
  bench calibrations(wavelength_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 6, offset corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband diffuse hemispheric irradiance, filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
• Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
• Diffuse Narrowband Hemispheric Irradiance, Filter 2, offset corrected(diffuse_hemisp_narrowband_filter2)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
• cosine correction, south to north, broadband channel(cosine_correction_sn_broadband)
• cosine correction, south to north, filter6(cosine_correction_sn_filter6)
• cosine correction, west to east, broadband channel(cosine_correction_we_broadband)
• Cosine correction, south to north, filter4(cosine_correction_sn_filter4)
• cosine correction, south to north, filter5(cosine_correction_sn_filter5)
• lon(lon)
• Cosine solar zenith angle(cosine_solar_zenith_angle)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• Azimuth angle(azimuth_angle)
• Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter5)
• Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter6)
• Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter3)
• Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter4)
• Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 degree zenith
  angle(diffuse_correction_filter1)
• Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith
  angle(diffuse_correction_filter2)
• Offset subtracted from hemispheric filter1 data(offset_filter1)
• Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
• Offset subtracted from direct normal filter3 data(offset_filter3)
• Offset subtracted from direct normal filter4 data(offset_filter4)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Offset subtracted from hemispheric and diffuse filter6 data(offset_filter6)
• Detector temperature(head_temp)
• Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 degree
  zenith angle(diffuse_correction_broadband)
• Cosine correction, south to north, filter2(cosine_correction_sn_filter2)
• Cosine correction, south to north, filter3(cosine_correction_sn_filter3)
• cosine correction, south to north, filter1(cosine_correction_sn_filter1)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Direct normal narrowband irradiance, filter 2, offset corrected(direct_normal_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Direct normal narrowband irradiance, filter 6, offset corrected(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• Solar zenith angle(solar_zenith_angle)
• Direct normal narrowband irradiance, filter 4, offset corrected(direct_normal_narrowband_filter4)
• base time in epoch(base_time)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• Offset subtracted from hemispheric and diffuse broadband data(offset_broadband)
• Elevation angle(elevation_angle)
• Second detector temperature(head_temp2)
• Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6)
• Ratio of direct_normal_filter5 to diffuse_hemisp_filter5(direct_diffuse_ratio_filter5)
• Ratio of direct_normal_filter4 to diffuse_hemisp_filter4(direct_diffuse_ratio_filter4)
• Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3)
• Ratio of direct_normal_filter2 to diffuse_hemisp_filter2(direct_diffuse_ratio_filter2)
• angle of incidence during cosine bench measurements(bench_angle)

• Time offset from base_time(time_offset)
• lon(lon)
• Airmasses(barnard_airmass)
• 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 Filter2(michalsky_rejected_filter2)
• 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 Filter4, Michalsky(michalsky_rejected_filter4)
• 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 Filter1, Michalsky(michalsky_rejected_filter1)
• base time in epoch(base_time)
• airmass(michalsky_airmass)
• log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
• 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 Filter4, Barnard(barnard_rejected_filter4)
• 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 Filter6(barnard_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)
• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• log(irradiance) for the Direct Broadband(barnard_lnI_broadband)
• log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6)
• -180.0 - +180.0(alt)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
• North Latitude(lat)
• rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband)

• 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 Narrowband
  Filter2(michalsky_good_fraction_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter4(michalsky_good_fraction_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter5(michalsky_good_fraction_filter5)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(michalsky_good_fraction_filter6)
• number of points used in final linear fit for the Direct Narrowband Filter5(barnard_number_points_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter6(barnard_number_points_filter6)
• Time offset from base_time(time_offset)
• 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 Filter4(barnard_number_points_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter2(barnard_number_points_filter2)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_filter2)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• optical depth for the Direct Narrowband Filter4(michalsky_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• optical depth for the Direct Narrowband Filter6(michalsky_optical_depth_filter6)
• optical depth for the Direct Narrowband Filter5(michalsky_optical_depth_filter5)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• Angstrom exponent(barnard_angstrom_exponent)
• 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
  Filter4(barnard_good_fraction_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(barnard_good_fraction_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter6(barnard_good_fraction_filter6)
• 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 Filter2(michalsky_number_points_filter2)
• 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 Filter4(michalsky_number_points_filter4)
• number of points used in final linear fit for the Direct Narrowband Filter5(michalsky_number_points_filter5)
• number of points used in final linear fit for the Direct Narrowband Filter6(michalsky_number_points_filter6)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• 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)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_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
  Filter1(barnard_good_fraction_filter1)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• rejection flag for Direct Broadband(barnard_badflag_broadband)
• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• base time in epoch(base_time)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• standard deviation around regression line for the Direct Narrowband Filter5(michalsky_standard_deviation_filter5)
• solar constant for the Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• solar constant for the Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• North Latitude(lat)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• percentage of initial points used in final linear fit for the Direct Broadband(michalsky_good_fraction_broadband)
• Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• solar constant for the Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• number of points used in final linear fit for the Direct Broadband(michalsky_number_points_broadband)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• lon(lon)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter3(barnard_error_slope_filter3)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter4(barnard_error_slope_filter4)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(barnard_solar_constant_sdist_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(barnard_solar_constant_sdist_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)
• 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)
• Langley regression Io, adjusted to 1AU, Barnard, Direct Narrowband Filter4(barnard_solar_constant_sdist_filter4)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter2(michalsky_solar_constant_sdist_filter2)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter4(michalsky_solar_constant_sdist_filter4)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(michalsky_solar_constant_sdist_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(michalsky_solar_constant_sdist_filter6)
• error in final linear fit for the Direct BroadBand(barnard_error_fit_broadband)
• solar constant corrected for solar distance for the Direct Broadband(michalsky_solar_constant_sdist_broadband)
• Angstrom exponent(michalsky_angstrom_exponent)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• -180.0 - +180.0(alt)