SGP/NIMFR/C1 - Head connector failure

The direct beam, head and tube temperatures went to zero beginning 20050105. The head 
connector was reseated 20050118 correcting the problem but the head signal cable was stressed 
again 20050120 through 20050121 resulting in poor data.  Data between 20050118-20050120 
may be ok but should be examined carefully.

• Azimuth angle(azimuth_angle)
• Cosine solar zenith angle(cosine_solar_zenith_angle)
• Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
• Offset subtracted from hemispheric and diffuse filter6 data(offset_filter6)
• Second detector temperature(head_temp2)
• Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
• time_in_seconds_since_volume_start(time)
• 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)
• Solar zenith angle(solar_zenith_angle)
• Direct normal narrowband irradiance, filter 6, offset corrected(direct_normal_narrowband_filter6)
• 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 filter1 data(nominal_calibration_factor_filter1)
• Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
• Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
• Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_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 5(direct_normal_narrowband_filter5)
• Direct normal narrowband irradiance, filter 4, offset corrected(direct_normal_narrowband_filter4)
• Detector temperature(head_temp)
• Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
• Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
• Tube Temperature(tube_temp)
• Offset subtracted from hemispheric and diffuse broadband data(offset_broadband)
• Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
• Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)
• Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
• Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
• Elevation angle(elevation_angle)
• base time in epoch(base_time)
• Time offset from base_time(time_offset)
• Normalized filter function data, filter 4, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter4)
• Normalized filter function data, filter 3, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter3)
• Normalized filter function data, filter 2, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter2)
• Normalized filter function data, filter 1, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter1)
• Normalized filter function data, filter 6, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter6)
• Normalized filter function data, filter 5, measured transmittance value obtained
  during bench calibrations(normalized_transmittance_filter5)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• lon(lon)
• Air mass(airmass)
• Data logger supply voltage(logger_volt)
• 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)
• Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
• North Latitude(lat)
• -180.0 - +180.0(alt)

• rejection flag for Direct Broadband(barnard_badflag_broadband)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• optical depth for the Direct Narrowband Filter3(michalsky_optical_depth_filter3)
• optical depth for the Direct Narrowband Filter2(michalsky_optical_depth_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 Filter6(michalsky_optical_depth_filter6)
• error in optical depth (slope) of final linear fit for the Direct Broadband(barnard_error_slope_broadband)
• Langley regression Io, adjusted to 1AU, Barnard, Direct BroadBand(barnard_solar_constant_sdist_broadband)
• optical depth for the Direct Narrowband Filter3(barnard_optical_depth_filter3)
• optical depth for the Direct Narrowband Filter4(barnard_optical_depth_filter4)
• optical depth for the Direct Narrowband Filter1(barnard_optical_depth_filter1)
• optical depth for the Direct Narrowband Filter2(barnard_optical_depth_filter2)
• optical depth for the Direct Narrowband Filter5(barnard_optical_depth_filter5)
• optical depth for the Direct Narrowband Filter6(barnard_optical_depth_filter6)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter2(michalsky_good_fraction_filter2)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(michalsky_good_fraction_filter3)
• solar constant corrected for solar distance for the Direct Narrowband Filter3(michalsky_solar_constant_sdist_filter3)
• 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 Filter5(michalsky_solar_constant_sdist_filter5)
• 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 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 Narrowband Filter1(michalsky_solar_constant_sdist_filter1)
• error in final linear fit for the Direct Narrowband Filter1(barnard_error_fit_filter1)
• error in final linear fit for the Direct Narrowband Filter2(barnard_error_fit_filter2)
• error in final linear fit for the Direct Narrowband Filter5(barnard_error_fit_filter5)
• error in final linear fit for the Direct Narrowband Filter6(barnard_error_fit_filter6)
• error in final linear fit for the Direct Narrowband Filter3(barnard_error_fit_filter3)
• error in final linear fit for the Direct Narrowband Filter4(barnard_error_fit_filter4)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• rejection flag for Direct Narrowband Filter3(barnard_badflag_filter3)
• rejection flag for Direct Narrowband Filter2(barnard_badflag_filter2)
• rejection flag for Direct Broadband(michalsky_badflag_broadband)
• rejection flag for Direct Narrowband Filter5(barnard_badflag_filter5)
• rejection flag for Direct Narrowband Filter4(barnard_badflag_filter4)
• rejection flag for Direct Narrowband Filter6(barnard_badflag_filter6)
• optical depth for the Direct BroadBand(barnard_optical_depth_broadband)
• 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 Broadband(michalsky_solar_constant_sdist_broadband)
• Angstrom exponent(michalsky_angstrom_exponent)
• 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 Filter3(barnard_number_points_filter3)
• 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 Filter5(barnard_number_points_filter5)
• 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 Filter6(barnard_number_points_filter6)
• standard deviation around regression line for the Direct Narrowband Filter1(michalsky_standard_deviation_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter5(barnard_error_slope_filter5)
• standard deviation around regression line for the Direct Narrowband Filter2(michalsky_standard_deviation_filter2)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter6(barnard_error_slope_filter6)
• standard deviation around regression line for the Direct Narrowband Filter3(michalsky_standard_deviation_filter3)
• 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)
• standard deviation around regression line for the Direct Narrowband Filter4(michalsky_standard_deviation_filter4)
• 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 Narrowband Filter5(michalsky_standard_deviation_filter5)
• standard deviation around regression line for the Direct Narrowband Filter6(michalsky_standard_deviation_filter6)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter2(barnard_error_slope_filter2)
• Langley regression Io, Michalsky, Direct Narrowband Filter2(michalsky_solar_constant_filter2)
• solar constant for the Direct Narrowband Filter3(michalsky_solar_constant_filter3)
• standard deviation around regression line for the Direct BroadBand(michalsky_standard_deviation_broadband)
• solar constant for the Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• Angstrom exponent(barnard_angstrom_exponent)
• 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
  Filter6(barnard_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
  Filter2(barnard_good_fraction_filter2)
• 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
  Filter4(barnard_good_fraction_filter4)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter3(barnard_good_fraction_filter3)
• 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 Filter3(barnard_solar_constant_sdist_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)
• rejection flag for Direct Narrowband Filter2(michalsky_badflag_filter2)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• rejection flag for Direct Narrowband Filter4(michalsky_badflag_filter4)
• rejection flag for Direct Narrowband Filter3(michalsky_badflag_filter3)
• rejection flag for Direct Narrowband Filter6(michalsky_badflag_filter6)
• solar constant corrected for solar distance for the Direct Narrowband Filter6(barnard_solar_constant_sdist_filter6)
• rejection flag for Direct Narrowband Filter5(michalsky_badflag_filter5)
• solar constant corrected for solar distance for the Direct Narrowband Filter5(barnard_solar_constant_sdist_filter5)
• percentage of initial points used in final linear fit for the Direct Broadband(barnard_good_fraction_broadband)
• optical depth for the Direct BroadBand(michalsky_optical_depth_broadband)
• 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)
• solar constant for the Direct Narrowband Filter6(michalsky_solar_constant_filter6)
• Langley regression Io, Michalsky, Direct Narrowband Filter4(michalsky_solar_constant_filter4)
• Langley regression Io, Michalsky, Direct Narrowband Filter5(michalsky_solar_constant_filter5)
• 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)
• 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)
• Langley regression Io, Michalsky, Direct BroadBand(michalsky_solar_constant_broadband)
• number of points used in final linear fit for the Direct Broadband(barnard_number_points_broadband)

• Fields flagged by callang: 0 = No Flag ,(callang_flags)
• Direct normal narrowband irradiance, filter 6, offset corrected(direct_normal_narrowband_filter6)
• Narrowband Direct Normal Irradiance, Filter 5(direct_normal_narrowband_filter5)
• 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 4, offset corrected(direct_normal_narrowband_filter4)
• Narrowband Direct Normal Irradiance, Filter 3, cosine corrected(direct_normal_narrowband_filter3)
• Detector temperature(head_temp)
• Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
• Tube Temperature(tube_temp)
• Direct Normal Irradiance, MFRSR(direct_norm_broadband)
• direct_norm_narrowband_filter5
• direct_norm_narrowband_filter4
• direct_norm_narrowband_filter3
• direct_norm_narrowband_filter2
• direct_norm_narrowband_filter1
• direct_norm_narrowband_filter6

• Tube Temperature(tube_temp)
• Detector temperature(head_temp)
• Direct Normal Irradiance, MFRSR(direct_norm_broadband)
• direct_norm_narrowband_filter5
• direct_norm_narrowband_filter4
• direct_norm_narrowband_filter3
• direct_norm_narrowband_filter2
• direct_norm_narrowband_filter1
• direct_norm_narrowband_filter6

• log(irradiance) for the Direct Broadband(michalsky_lnI_broadband)
• 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 Broadband(barnard_lnI_broadband)
• rejected points for the final fit for the Direct Broadband, Barnard(barnard_rejected_broadband)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter3, Michalsky(michalsky_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter2, Michalsky(michalsky_lnI_filter2)
• log(irradiance) for the Direct Narrowband Filter5, Michalsky(michalsky_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter4, Michalsky(michalsky_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter6, Michalsky(michalsky_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter5(barnard_lnI_filter5)
• log(irradiance) for the Direct Narrowband Filter6(barnard_lnI_filter6)
• log(irradiance) for the Direct Narrowband Filter3, Barnard(barnard_lnI_filter3)
• log(irradiance) for the Direct Narrowband Filter4(barnard_lnI_filter4)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter2, Barnard(barnard_lnI_filter2)
• 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 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 Filter1, Michalsky(michalsky_rejected_filter1)
• 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 Filter5, Michalsky(michalsky_rejected_filter5)
• rejected points for the final fit for the Direct Broadband(michalsky_rejected_broadband)

• Angstrom exponent(angstrom_exponent)
• Rayleigh_optical_thickness_filter5
• Rayleigh_optical_thickness_filter1
• Rayleigh_optical_thickness_filter2
• Rayleigh_optical_thickness_filter3
• Rayleigh_optical_thickness_filter4
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• total optical depth direct narrowband filter 2(total_optical_depth_filter2)
• total optical depth direct narrowband filter 5(total_optical_depth_filter5)
• total optical depth direct narrowband filter 3(total_optical_depth_filter3)
• total optical depth direct narrowband filter 4(total_optical_depth_filter4)
• io_filter4
• io_filter5
• io_filter2
• io_filter3
• io_filter1
• optical_depth_stability_flag
• Ozone absorption coefficient used for filter 2(Ozone_absorption_coefficient_filter2)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)
• Ozone absorption coefficient used for filter 4(Ozone_absorption_coefficient_filter4)
• Ozone absorption coefficient used for filter 3(Ozone_absorption_coefficient_filter3)
• Ozone optical depth, computed from ozone_absorption coefficient, filter 5(Ozone_absorption_coefficient_filter5)
• aerosol optical depth filter 4(aerosol_optical_depth_filter4)
• aerosol optical depth filter 5(aerosol_optical_depth_filter5)
• aerosol optical depth filter 2(aerosol_optical_depth_filter2)
• aerosol optical depth filter 3(aerosol_optical_depth_filter3)
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• TOMS_optical_depth