NSA/NIMFR/C1 - Serious Alignment/Tracker Problems

Late in the evening of April 6, Barrow site had a power failure.  When power was restored 
the tracker went to the wrong position and stopped.  The tracker remained in the stopped 
position until April 19 14:00 when operations was restored.

While the Tracker was stopped the NIMFR was pointed some place in space. Head and tube 
temp remained normal.  Detectors were recording no signals or zero sun.

• Data Logger Supply Voltage(logger_volt)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Detector Temperature(mfr_temp)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)

• Detector Temperature(mfr_temp)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Data Logger Supply Voltage(logger_volt)

NSA/NIMFR/C1 - Alignment problems

Data quality poor due to bad alignment.

• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Detector Temperature(mfr_temp)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)

• Detector Temperature(mfr_temp)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)

NSA/NIMFR/C1 - Logger board produces erratic data

A problem with the loggerboard led to erratic values for all data during the listed time 
period. The affected data does not appear to be correctable.

• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Detector Temperature(mfr_temp)
• east longitude for all the input platforms.(lon)
• Time offset of tweaks from base_time(time_offset)
• altitude above sea levelaltunits(alt)
• Data Logger Supply Voltage(logger_volt)
• north latitude for all the input platforms.(lat)
• Time offset from base_time(base_time)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Source of raw data values for time step(raw_file)

• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• north latitude for all the input platforms.(lat)
• east longitude for all the input platforms.(lon)
• altitude above sea levelaltunits(alt)
• Time offset from base_time(base_time)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Data Logger Supply Voltage(logger_volt)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Detector Temperature(mfr_temp)
• Source of raw data values for time step(raw_file)

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

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

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

NSA/NIMFR/C1 - No data collected during winter

The sun does not rise above the horizon at the NSA sites between
November and January each year.  During this time period, the MFR
instruments are removed and returned to PNNL for maintenance
and calibration.  The instruments are generally re-installed in
March.

• Time offset from base_time(base_time)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• altitude above sea levelaltunits(alt)
• Data Logger Supply Voltage(logger_volt)
• Source of raw data values for time step(raw_file)
• east longitude for all the input platforms.(lon)
• north latitude for all the input platforms.(lat)
• Detector Temperature(mfr_temp)

• east longitude for all the input platforms.(lon)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Time offset from base_time(base_time)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Source of raw data values for time step(raw_file)
• NIMFR Tube Temperature(tube_temp)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Detector Temperature(head_temp)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• north latitude for all the input platforms.(lat)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• altitude above sea levelaltunits(alt)
• Detector Temperature(mfr_temp)

NSA/NIMFR/C1 - No data collected during winter

The sun does not rise above the horizon at the NSA sites between
November and January each year.  During this time period, the MFR
instruments are removed and returned to PNNL for maintenance
and calibration.  The instruments are generally re-installed in
March.

• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• east longitude for all the input platforms.(lon)
• Time offset of tweaks from base_time(time_offset)
• altitude above sea levelaltunits(alt)
• north latitude for all the input platforms.(lat)
• Source of raw data values for time step(raw_file)
• Detector Temperature(mfr_temp)
• Data Logger Supply Voltage(logger_volt)
• Time offset from base_time(base_time)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)

• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)
• north latitude for all the input platforms.(lat)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• altitude above sea levelaltunits(alt)
• Time offset from base_time(base_time)
• Data Logger Supply Voltage(logger_volt)
• Narrowband Direct Normal Irradiance, Filter 2, cosine corrected(direct_normal_narrowband_filter2)
• Time offset of tweaks from base_time(time_offset)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Narrowband Direct Normal Irradiance, Filter 1, cosine corrected(direct_normal_narrowband_filter1)
• Detector Temperature(mfr_temp)
• east longitude for all the input platforms.(lon)
• NIMFR Tube Temperature(tube_temp)
• Narrowband Direct Normal Irradiance, Filter 4, cosine corrected(direct_normal_narrowband_filter4)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Narrowband Direct Normal Irradiance, Filter 5, cosine corrected(direct_normal_narrowband_filter5)
• Narrowband Direct Normal Irradiance, Filter 6, cosine corrected(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Source of raw data values for time step(raw_file)
• Detector Temperature(head_temp)

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

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

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

NSA/NIMFR - Bit Driver Failure

In the early morning of July 28, 1999, the bit drivers on the NIMFR
failed. On August 04, 1999, at 23:30 GMT, the NSA local operator replaced the
failed bit drivers with identical SI Tech bit drivers.

• Data Logger Supply Voltage(logger_volt)
• Time offset of tweaks from base_time(time_offset)
• Time offset from base_time(base_time)
• Source of raw data values for time step(raw_file)
• east longitude for all the input platforms.(lon)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• north latitude for all the input platforms.(lat)
• altitude above sea levelaltunits(alt)
• Detector Temperature(mfr_temp)

• north latitude for all the input platforms.(lat)
• east longitude for all the input platforms.(lon)
• Time offset of tweaks from base_time(time_offset)
• Time offset from base_time(base_time)
• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)
• Source of raw data values for time step(raw_file)
• Fields flagged by callang: 0 = no flag\n,(callang_flags)
• Data Logger Supply Voltage(logger_volt)
• altitude above sea levelaltunits(alt)
• Detector Temperature(mfr_temp)
• Cosine of Apparent Solar Zenith Angle(cosine_solar_zenith_angle)

NSA/NIMFR/C1 - Bad irradiance data

The NIMFR at the NSA site failed on 99/10/08 due to a faulty connector.  
The head temperature and board voltage are OK, but all irradiance data is 
bad.  The connector was cleaned on 99/11/01 and the irradiance data started 
flowing again.

• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)

• Direct Normal Irradiance, Uncalibrated Silicon Detector, NIMFR(direct_norm_broadband)
• Direct Normal Irradiance, NIMFR(direct_norm_narrowband)