SGP/SIRS/E8 - Solar Tracker Failure

Downwelling Diffuse values too high and Direct Normal 
values too low.  Diffuse pyranometer not shaded due to tracker
failure.  Direct Normal pyrheliometer not properly aligned with the 
solar disc due to tracker failure.  (These radiometers are mounted on 
the same solar tracker.)

Recommendation:  Data  cannot be reconstructed or interpolated. 
Diffuse data could be compared with Downwelling Shortwave (Global) to 
determine relative precision of two unshaded pyranometers at this 
site.

• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyranometer, Standard
  Deviation(down_short_diffuse_hemisp_std)
• Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Pyrgeometer, Minima(down_short_diffuse_hemisp_min)
• Downwelling shortwave diffuse hemispheric irradiance, pyranometer, maxima(down_short_diffuse_hemisp_max)
• Downwelling Shortwave Diffuse Hemispheric Irradiance, Ventilated Pyranometer(down_short_diffuse_hemisp)
• Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)