SGP/MFRSR/E20 - Failed Sensor results in erratic data

Beginning 06/24, the 415 nm data was suspiciously erratic, 
              noisy, and/or high.  The other channels also seem somewhat 
              suspicious, especially on 06/27 and 06/28 when readings were 
              around 0 on all filters for a lengthy period of time (which did 
              not agree with surrounding facilities).  On 7/3, the instrument
              sensor were found to be burned out and the instrument was removed
              from service.

• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter5)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Rayleigh optical thickness computed for filter 2(Rayleigh_optical_thickness_filter2)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• Rayleigh optical thickness computed for filter 3(Rayleigh_optical_thickness_filter3)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• Rayleigh optical thickness computed for filter 1(Rayleigh_optical_thickness_filter1)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• angstrom exponent(angstrom_exponent)
• Time offset of tweaks from base_time(time_offset)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• Indicator of optical depth stability(optical_depth_stability_flag)
• north latitude for all the input platforms.(lat)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter4)
• Airmasses(airmass)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• Time offset from base_time(base_time)
• east longitude for all the input platforms.(lon)
• surface pressure(surface_pressure)
• altitude above sea levelaltunits(alt)
• Optical depth from TOMS satellite(TOMS_optical_depth)
• totaloptical depth direct narrowband filter 2(total_optical_depth_filter2)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter3)
• Rayleigh optical thickness computed for filter 4(Rayleigh_optical_thickness_filter4)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter1)
• Rayleigh optical thickness computed for filter 5(Rayleigh_optical_thickness_filter5)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter2)

• Raw data stream - documentation not supported(Raw data stream - documentation not supported)

• altitude above sea levelaltunits(alt)
• rejected points for the final fit for the Direct Broadband(barnard_rejected_broadband)
• Time offset of tweaks from base_time(time_offset)
• log(irradiance) for the Direct Broadband(barnard_lnI_broadband)
• rejected points for the final fit for the Direct Narrowband Filter4(michalsky_rejected_filter4)
• east longitude for all the input platforms.(lon)
• rejected points for the final fit for the Direct Narrowband Filter5(michalsky_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter1(michalsky_rejected_filter1)
• Airmasses(barnard_airmass)
• rejected points for the final fit for the Direct Narrowband Filter3(michalsky_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter2(michalsky_rejected_filter2)
• log(irradiance) for the Direct Narrowband Filter3(michalsky_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter4(michalsky_lnI_filter4)
• rejected points for the final fit for the Direct Narrowband Filter3(barnard_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter5(barnard_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter6(barnard_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter4(barnard_rejected_filter4)
• log(irradiance) for the Direct Narrowband Filter1(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter5(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter6(michalsky_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter2(barnard_lnI_filter2)
• rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
• log(irradiance) for the Direct Narrowband Filter3(barnard_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter6(michalsky_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• north latitude for all the input platforms.(lat)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• Time offset from base_time(base_time)
• log(irradiance) for the Direct Narrowband Filter2(michalsky_lnI_filter2)
• Airmasses(michalsky_airmass)

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

• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• north latitude for all the input platforms.(lat)
• altitude above sea levelaltunits(alt)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Detector Temperature(head_temp)
• Time offset from base_time(base_time)
• Data Logger Supply Voltage(logger_volt)
• east longitude for all the input platforms.(lon)

SGP/MFRSR/E20 - Data not quality assured

Data from October 1, 1999 through March 2001 from MFRSR.E20 should be used with caution. 
During this time period only minimal quality control and maintenance were provided to the 
SGP extended facility MFRSRs because these data were considered to be of questionable 
value under the best of circumstances. That decision was reversed in  2001 when Joe 
Michalsky identified a means to make the MFRSR data scientifically useable.

In the interim, the MFRSRs developed problems with shading, leveling, calibration and 
all-out hardware failures and the stock of spare MFRSRs was depleted and not replenished. 
Most of the shading and leveling problems have now been corrected in the field as well as 
possible, but almost all of the extended facilty MFRSRs still need to be recalibrated or 
replaced.

• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Detector Temperature(head_temp)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)

• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Detector Temperature(head_temp)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)

SGP/MFRSR/E20 - Missing data

Data are missing and unrecoverable.

• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter5)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Rayleigh optical thickness computed for filter 2(Rayleigh_optical_thickness_filter2)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• Rayleigh optical thickness computed for filter 3(Rayleigh_optical_thickness_filter3)
• Rayleigh optical thickness computed for filter 1(Rayleigh_optical_thickness_filter1)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• Ozone absorption coefficient used for filter 5(Ozone_absorption_coefficient_filter5)
• angstrom exponent(angstrom_exponent)
• Time offset of tweaks from base_time(time_offset)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• Indicator of optical depth stability(optical_depth_stability_flag)
• north latitude for all the input platforms.(lat)
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter4)
• Airmasses(airmass)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• Time offset from base_time(base_time)
• east longitude for all the input platforms.(lon)
• surface pressure(surface_pressure)
• altitude above sea levelaltunits(alt)
• Optical depth from TOMS satellite(TOMS_optical_depth)
• totaloptical depth direct narrowband filter 2(total_optical_depth_filter2)
• Rayleigh optical thickness computed for filter 4(Rayleigh_optical_thickness_filter4)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter3)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter1)
• Rayleigh optical thickness computed for filter 5(Rayleigh_optical_thickness_filter5)
• extraterrestrial spectral irradiance used for optical depth calculations,
  corrected for eccentricity of earth\'s orbit(io_filter2)

• altitude above sea levelaltunits(alt)
• rejected points for the final fit for the Direct Broadband(barnard_rejected_broadband)
• Time offset of tweaks from base_time(time_offset)
• log(irradiance) for the Direct Broadband(barnard_lnI_broadband)
• rejected points for the final fit for the Direct Narrowband Filter4(michalsky_rejected_filter4)
• east longitude for all the input platforms.(lon)
• rejected points for the final fit for the Direct Narrowband Filter5(michalsky_rejected_filter5)
• rejected points for the final fit for the Direct Narrowband Filter1(michalsky_rejected_filter1)
• Airmasses(barnard_airmass)
• rejected points for the final fit for the Direct Narrowband Filter3(michalsky_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter2(michalsky_rejected_filter2)
• log(irradiance) for the Direct Narrowband Filter3(michalsky_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter4(michalsky_lnI_filter4)
• rejected points for the final fit for the Direct Narrowband Filter3(barnard_rejected_filter3)
• rejected points for the final fit for the Direct Narrowband Filter5(barnard_rejected_filter5)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter6(barnard_rejected_filter6)
• rejected points for the final fit for the Direct Narrowband Filter4(barnard_rejected_filter4)
• log(irradiance) for the Direct Narrowband Filter1(barnard_lnI_filter1)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter5(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter6(michalsky_lnI_filter6)
• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter2(barnard_lnI_filter2)
• rejected points for the final fit for the Direct Narrowband Filter2(barnard_rejected_filter2)
• log(irradiance) for the Direct Narrowband Filter3(barnard_lnI_filter3)
• rejected points for the final fit for the Direct Narrowband Filter6(michalsky_rejected_filter6)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• north latitude for all the input platforms.(lat)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• Time offset from base_time(base_time)
• log(irradiance) for the Direct Narrowband Filter2(michalsky_lnI_filter2)
• Airmasses(michalsky_airmass)

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

• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• north latitude for all the input platforms.(lat)
• Time offset from base_time(base_time)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• altitude above sea levelaltunits(alt)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• 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 Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Time offset of tweaks from base_time(time_offset)
• east longitude for all the input platforms.(lon)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Detector Temperature(head_temp)

• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 5, offset and cosine corrected(hemisp_narrowband_filter5)
• Narrowband Hemispheric Irradiance, Filter 6, offset and cosine corrected(hemisp_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• north latitude for all the input platforms.(lat)
• altitude above sea levelaltunits(alt)
• Hemispheric Broadband Irradiance, offset and cosine corrected, broadband scale
  factor applied(hemisp_broadband)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 1, offset and cosine corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Diffuse Hemispheric Irradiance, Filter 4, offset and cosine corrected(diffuse_hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
• Narrowband Diffuse Hemispheric Irradiance, Filter 6, offset and cosine corrected(diffuse_hemisp_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
• Narrowband Diffuse Hemispheric Irradiance, Filter 3, offset and cosine corrected(diffuse_hemisp_narrowband_filter3)
• Narrowband Hemispheric Irradiance, Filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
• Narrowband Diffuse Hemispheric Irradiance, Filter 2, offset and cosine corrected(diffuse_hemisp_narrowband_filter2)
• Narrowband Hemispheric Irradiance, Filter 1, offset and cosine corrected(hemisp_narrowband_filter1)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Narrowband Hemispheric Irradiance, Filter 2, offset and cosine corrected(hemisp_narrowband_filter2)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Diffuse Hemispheric Broadband Irradiance, offset subtracted, cosine corrected,
  broadband scale applied(diffuse_hemisp_broadband)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Detector Temperature(head_temp)
• Time offset from base_time(base_time)
• Data Logger Supply Voltage(logger_volt)
• east longitude for all the input platforms.(lon)