SGP/MFRSR/E8 - Channel 415 problem

Channel 415 is frequently noisy or drops out altogether.  Seems to be a continuation of 
the problem addressed in DQR D050920.1.  Instrument operated like this until 1/10/2006 when 
a catastrophic failure occurred.  Unknown if this failure is related to the 415 issue.  
Instrument was pulled for repair.

• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)
• Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)

• Diffuse Narrowband Hemispheric Irradiance, Filter 1, offset corrected(diffuse_hemisp_narrowband_filter1)
• Narrowband Hemispheric Irradiance, Filter 1, offset corrected(hemisp_narrowband_filter1)
• Narrowband Direct Normal Irradiance, Filter 1(direct_normal_narrowband_filter1)

• (Raw data stream - documentation not supported)

• Rayleigh_optical_thickness_filter1
• io_filter1
• aerosol optical depth filter 1(aerosol_optical_depth_filter1)
• total optical depth direct narrowband filter 1(total_optical_depth_filter1)
• Ozone absorption coefficient used for filter 1(Ozone_absorption_coefficient_filter1)

• 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)
• 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
  Filter1(barnard_good_fraction_filter1)
• 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 Filter1(barnard_error_fit_filter1)
• solar constant corrected for solar distance for the Direct Narrowband Filter1(barnard_solar_constant_sdist_filter1)
• rejection flag for Direct Narrowband Filter1(barnard_badflag_filter1)
• rejection flag for Direct Narrowband Filter1(michalsky_badflag_filter1)
• percentage of initial points used in final linear fit for the Direct Narrowband
  Filter1(michalsky_good_fraction_filter1)
• solar constant for the Direct Narrowband Filter1(michalsky_solar_constant_filter1)
• optical depth for the Direct Narrowband Filter1(michalsky_optical_depth_filter1)
• number of points used in final linear fit for the Direct Narrowband Filter1(barnard_number_points_filter1)
• error in optical depth (slope) of final linear fit for the Direct Narrowband
  Filter1(barnard_error_slope_filter1)

• rejected points for the final fit for the Direct Narrowband Filter1(barnard_rejected_filter1)
• log(irradiance) for the Direct Narrowband Filter1, Barnard(barnard_lnI_filter1)
• log(irradiance) for the Direct Narrowband Filter1(michalsky_lnI_filter1)
• rejected points for the final fit for the Direct Narrowband Filter1, Michalsky(michalsky_rejected_filter1)