SGP/SASHE/C1 - Instrument problem

The SASHe azimuth stage began to exhibit wear and lose the ability to consistently track 
the sun, ultimately leading to incorrect identification of the direct and diffuse 
irradiance components - especially in the hours around solar noon.  Total hemispheric irradiances 
are of acceptable quality.

Avoid data within two hours of local noon.

• Direct horizontal solar irradiance component, 615 nm(direct_horizontal_615nm)
• Diffuse hemispheric irradiance component, 500 nm(diffuse_hemisp_500nm)
• Direct horizontal solar irradiance component, 500 nm(direct_horizontal_500nm)
• Direct normal solar irradiance, 615 nm(direct_normal_615nm)
• Diffuse hemispheric irradiance component, 870 nm(diffuse_hemisp_870nm)
• Direct horizontal solar irradiance component, 415 nm(direct_horizontal_415nm)
• Direct horizontal solar irradiance component, 940 nm(direct_horizontal_940nm)
• Direct normal solar irradiance, 673 nm(direct_normal_673nm)
• Direct normal solar irradiance, 870 nm(direct_normal_870nm)
• Diffuse hemispheric irradiance component, 940 nm(diffuse_hemisp_940nm)
• Direct normal solar irradiance, 415 nm(direct_normal_415nm)
• Diffuse hemispheric irradiance component, 673 nm(diffuse_hemisp_673nm)
• Direct normal solar irradiance, 940 nm(direct_normal_940nm)
• Direct horizontal solar irradiance component,673 nm(direct_horizontal_673nm)
• Direct normal solar irradiance, 500 nm(direct_normal_500nm)
• Diffuse hemispheric irradiance component, 615 nm(diffuse_hemisp_615nm)
• Direct horizontal solar irradiance component, 870 nm(direct_horizontal_870nm)
• Diffuse hemispheric irradiance component, 415 nm(diffuse_hemisp_415nm)

• Diffuse hemispheric irradiance component, Si CCD spectrometer(diffuse_hemisp_spectrometer_vis)
• Direct normal solar irradiance, Si CCD spectrometer(direct_normal_spectrometer_vis)
• Direct horizontal solar irradiance from Si CCD spectrometer(direct_horizontal_spectrometer_vis)

• Diffuse hemispheric irradiance component, InGaAs linear array spectrometer(diffuse_hemisp_spectrometer_nir)
• Direct normal solar irradiance, InGaAs linear array spectrometer(direct_normal_spectrometer_nir)
• Direct horizontal solar irradiance from InGaAs linear array spectrometer(direct_horizontal_spectrometer_nir)