DQRID : D080408.1
Start DateStart TimeEnd DateEnd Time
02/05/2008000005/29/20081550
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Subject:
SGP/MFRSR/E10 - Heater controller problem
DataStreams:sgpmfrsrE10.b1, sgpmfrsrE10.a0, sgpmfrsrE10.00
Description:
Right from the start of the installation of the new system the data were noisy.  It 
appeared that the problem was with the logger program and an incorrect range setting.  It 
turned out the issue was a faulty heater board.  The heater boards can cause noisy data when 
they fail.  It wasn't obvious because the head temp was very stable at 40 deg C.  
Replacing the board solved the noise problem.
Suggestions: 
Look at the data to determine if they are usable.
Measurements:sgpmfrsrE10.00:
  • (Raw data stream - documentation not supported)
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sgpmfrsrE10.b1:
  • Cosine correction of filter2 diffuse, assuming Rayleigh sky at 45 deg zenith
    angle(diffuse_correction_filter2)
  • Data Logger Temperature(logger_temp)
  • Offset subtracted from hemispheric and diffuse filter6 data(offset_filter6)
  • Cosine correction of filter1 diffuse, assuming Rayleigh sky at 45 degree zenith
    angle(diffuse_correction_filter1)
  • Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
  • Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
  • Cosine correction of filter4 diffuse, assuming Rayleigh sky at 45 deg zenith
    angle(diffuse_correction_filter4)
  • Cosine correction of filter3 diffuse, assuming Rayleigh sky at 45 deg zenith
    angle(diffuse_correction_filter3)
  • 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)
  • Time offset from base_time(time_offset)
  • Direct normal narrowband irradiance, filter 4, offset corrected(direct_normal_narrowband_filter4)
  • Solar zenith angle(solar_zenith_angle)
  • Direct normal narrowband irradiance, filter 6, offset corrected(direct_normal_narrowband_filter6)
  • Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
  • Offset subtracted from hemispheric filter1 data(offset_filter1)
  • base time in epoch(base_time)
  • Offset subtracted from direct normal filter4 data(offset_filter4)
  • Hemispheric broadband irradiance(hemisp_broadband)
  • Offset subtracted from direct normal filter3 data(offset_filter3)
  • North Latitude(lat)
  • Normalized filter function data, filter 4, wavelength value obtained during
    bench calibrations(wavelength_filter4)
  • Normalized filter function data, filter 3, wavelength value obtained during
    bench calibrations(wavelength_filter3)
  • Normalized filter function data, filter 2, wavelength value obtained during
    bench calibrations(wavelength_filter2)
  • Normalized filter function data, filter 1, wavelength value obtained during
    bench calibrations(wavelength_filter1)
  • Narrowband hemispheric irradiance, filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
  • Narrowband hemispheric irradiance, filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
  • Normalized filter function data, filter 6, wavelength value obtained during
    bench calibrations(wavelength_filter6)
  • Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
  • Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
  • Normalized filter function data, filter 5, wavelength value obtained during
    bench calibrations(wavelength_filter5)
  • Air mass(airmass)
  • Narrowband hemispheric irradiance, filter 6, nominal wavelength is 935 nm(hemisp_narrowband_filter6)
  • Narrowband Hemispheric Irradiance, Filter 5, offset corrected(hemisp_narrowband_filter5)
  • angle of incidence during cosine bench measurements(bench_angle)
  • Cosine correction of filter6 diffuse, assuming Rayleigh sky at 45 deg zenith
    angle(diffuse_correction_filter6)
  • Cosine correction of filter5 diffuse, assuming Rayleigh sky at 45 deg zenith
    angle(diffuse_correction_filter5)
  • Detector temperature(head_temp)
  • Cosine correction applied to direct_horizontal_broadband(computed_cosine_correction_broadband)
  • Cosine correction applied to direct_horizontal_filter5(computed_cosine_correction_filter5)
  • Cosine correction applied to direct_horizontal_narrowband_filter4(computed_cosine_correction_filter4)
  • Cosine correction applied to direct_horizontal_narrowband_filter3(computed_cosine_correction_filter3)
  • Elevation angle(elevation_angle)
  • Cosine correction applied to direct_horizontal_narrowband_filter2(computed_cosine_correction_filter2)
  • Cosine correction applied to direct_horizontal_filter1(computed_cosine_correction_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)
  • Cosine correction applied to direct_horizontal_filter6(computed_cosine_correction_filter6)
  • Data logger supply voltage(logger_volt)
  • Nominal calibration factor, applied to broadband data(nominal_calibration_factor_broadband)
  • Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
  • 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)
  • -180.0 - +180.0(alt)
  • Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
  • Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
  • cosine correction, south to north, broadband channel(cosine_correction_sn_broadband)
  • Ratio of direct_normal_narrowband_filter3 to diffuse_hemisp_narrowband_filter3(direct_diffuse_ratio_filter3)
  • Ratio of direct_normal_filter2 to diffuse_hemisp_filter2(direct_diffuse_ratio_filter2)
  • Ratio of direct_normal_filter1 to diffuse_hemisp_filter1(direct_diffuse_ratio_filter1)
  • Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
  • Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
  • Ratio of direct_normal_narrowband_filter6 to diffuse_hemisp_narrowband_filter6(direct_diffuse_ratio_filter6)
  • Ratio of direct_normal_filter5 to diffuse_hemisp_filter5(direct_diffuse_ratio_filter5)
  • Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)
  • Ratio of direct_normal_filter4 to diffuse_hemisp_filter4(direct_diffuse_ratio_filter4)
  • Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
  • cosine correction, south to north, filter6(cosine_correction_sn_filter6)
  • Cosine correction, south to north, filter4(cosine_correction_sn_filter4)
  • cosine correction, south to north, filter5(cosine_correction_sn_filter5)
  • Cosine correction, south to north, filter2(cosine_correction_sn_filter2)
  • Cosine correction, south to north, filter3(cosine_correction_sn_filter3)
  • cosine correction, south to north, filter1(cosine_correction_sn_filter1)
  • Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
  • Cosine correction of broadband diffuse, assuming Rayleigh sky at 45 degree
    zenith angle(diffuse_correction_broadband)
  • Ratio of direct_normal_broadband to diffuse_hemisp_broadband(direct_diffuse_ratio_broadband)
  • Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
  • Direct Normal Broadband Irradiance, cosine corrected, broadband scale applied(direct_normal_broadband)
  • cosine correction, west to east, filter3(cosine_correction_we_filter3)
  • Cosine correction, west to east, filter4(cosine_correction_we_filter4)
  • Cosine correction, west to east, filter5(cosine_correction_we_filter5)
  • cosine correction, west to east, filter6(cosine_correction_we_filter6)
  • Cosine correction, west to east, filter1(cosine_correction_we_filter1)
  • cosine correction, west to east, filter2(cosine_correction_we_filter2)
  • Alltime hemispheric broadband irradiance(alltime_hemisp_broadband)
  • time_in_seconds_since_volume_start(time)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 6, offset corrected(diffuse_hemisp_narrowband_filter6)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 2, offset corrected(diffuse_hemisp_narrowband_filter2)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
  • Narrowband diffuse hemispheric irradiance, filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
  • Cosine solar zenith angle(cosine_solar_zenith_angle)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
  • Azimuth angle(azimuth_angle)
  • Second detector temperature(head_temp2)
  • cosine correction, west to east, broadband channel(cosine_correction_we_broadband)
  • Offset subtracted from hemispheric and diffuse broadband data(offset_broadband)
  • Nominal calibration factor, applied to filter5 data(nominal_calibration_factor_filter5)
  • Nominal calibration factor, applied to filter6 data(nominal_calibration_factor_filter6)
  • Nominal calibration factor, applied to filter1 data(nominal_calibration_factor_filter1)
  • Nominal calibration factor, applied to filter2 data(nominal_calibration_factor_filter2)
  • Nominal calibration factor, applied to filter3 data(nominal_calibration_factor_filter3)
  • Nominal calibration factor, applied to filter4 data(nominal_calibration_factor_filter4)
  • Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
  • lon(lon)
  • Alltime narrowband hemispheric irradiance, filter 5(alltime_hemisp_narrowband_filter5)
  • Alltime narrowband hemispheric irradiance, filter 2(alltime_hemisp_narrowband_filter2)
  • Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
  • Alltime narrowband hemispheric irradiance, filter 1(alltime_hemisp_narrowband_filter1)
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sgpmfrsrE10.a0:
  • North Latitude(lat)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 5(diffuse_hemisp_narrowband_filter5_raw)
  • Narrowband Direct Horizontal Irradiance, Filter 2, cosine corrected(direct_horizontal_narrowband_filter2)
  • Direct horizontal narrowband irradiance, filter 1(direct_horizontal_narrowband_filter1)
  • Narrowband Direct Horizontal Irradiance, Filter 6, cosine corrected(direct_horizontal_narrowband_filter6)
  • Narrowband Direct Horizontal Irradiance, Filter 5, cosine corrected(direct_horizontal_narrowband_filter5)
  • Narrowband Direct Horizontal Irradiance, Filter 4, cosine corrected(direct_horizontal_narrowband_filter4)
  • Direct Horizontal Narrowband Irradiance, Filter 3(direct_horizontal_narrowband_filter3)
  • Narrowband hemispheric irradiance, filter 2(hemisp_narrowband_filter2_raw)
  • Offset subtracted from hemispheric and diffuse filter6 data(offset_filter6)
  • Offset subtracted from upwelling hemispheric filter5 data(offset_filter5)
  • Offset subtracted from upwelling hemispheric filter2 data(offset_filter2)
  • Offset subtracted from hemispheric filter1 data(offset_filter1)
  • Offset subtracted from direct normal filter4 data(offset_filter4)
  • Diffuse narrowband hemispheric irradiance, filter 3(diffuse_hemisp_narrowband_filter3_raw)
  • Offset subtracted from direct normal filter3 data(offset_filter3)
  • Narrowband Hemispheric Irradiance, Filter 2(hemisp_narrowband_filter2)
  • Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
  • Narrowband hemispheric irradiance, filter 4, offset and cosine corrected(hemisp_narrowband_filter4)
  • Narrowband hemispheric irradiance, filter 3, offset and cosine corrected(hemisp_narrowband_filter3)
  • Narrowband hemispheric irradiance, filter 6, nominal wavelength is 935 nm(hemisp_narrowband_filter6)
  • Detector temperature(head_temp)
  • Narrowband Hemispheric Irradiance, Filter 5, offset corrected(hemisp_narrowband_filter5)
  • -180.0 - +180.0(alt)
  • Narrowband hemispheric irradiance, filter 4(hemisp_narrowband_filter4_raw)
  • time_in_seconds_since_volume_start(time)
  • Second detector temperature(head_temp2)
  • Diffuse narrowband hemispheric irradiance, filter 1(diffuse_hemisp_narrowband_filter1_raw)
  • Alltime Narrowband Hemispheric Irradiance, Filter 6(alltime_hemisp_narrowband_filter6)
  • Diffuse Hemispheric Broadband Irradiance, offset corrected(diffuse_hemisp_broadband)
  • Direct Horizontal Broadband Irradiance(direct_horizontal_broadband)
  • Data logger supply voltage(logger_volt)
  • Narrowband Hemispheric Irradiance, Filter 6(hemisp_narrowband_filter6_raw)
  • lon(lon)
  • Hemispheric broadband irradiance(hemisp_broadband)
  • Narrowband hemispheric irradiance, filter 1(hemisp_narrowband_filter1_raw)
  • Alltime Narrowband Hemispheric Irradiance, Filter 4(alltime_hemisp_narrowband_filter4)
  • Alltime narrowband hemispheric irradiance, filter 5(alltime_hemisp_narrowband_filter5)
  • Alltime narrowband hemispheric irradiance, filter 2(alltime_hemisp_narrowband_filter2)
  • Alltime Narrowband Hemispheric Irradiance, Filter 3(alltime_hemisp_narrowband_filter3)
  • Alltime narrowband hemispheric irradiance, filter 1(alltime_hemisp_narrowband_filter1)
  • Narrowband Hemispheric Irradiance, Filter 3(hemisp_narrowband_filter3_raw)
  • Time offset from base_time(time_offset)
  • Data Logger Temperature(logger_temp)
  • Diffuse narrowband hemispheric irradiance, filter 6(diffuse_hemisp_narrowband_filter6_raw)
  • Diffuse Hemispheric Broadband Irradiance(diffuse_hemisp_broadband_raw)
  • Diffuse narrowband hemispheric irradiance, filter 4(diffuse_hemisp_narrowband_filter4_raw)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
  • Narrowband hemispheric irradiance, filter 5(hemisp_narrowband_filter5_raw)
  • Hemispheric broadband irradiance(hemisp_broadband_raw)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 6, offset corrected(diffuse_hemisp_narrowband_filter6)
  • Offset subtracted from hemispheric and diffuse broadband data(offset_broadband)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 2, offset corrected(diffuse_hemisp_narrowband_filter2)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 3(diffuse_hemisp_narrowband_filter3)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 4(diffuse_hemisp_narrowband_filter4)
  • Narrowband diffuse hemispheric irradiance, filter 5, offset and cosine corrected(diffuse_hemisp_narrowband_filter5)
  • base time in epoch(base_time)
  • Diffuse Narrowband Hemispheric Irradiance, Filter 2(diffuse_hemisp_narrowband_filter2_raw)
  • Alltime hemispheric broadband irradiance(alltime_hemisp_broadband)
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