SGP/SIRS/E35 - Reprocessed: Partial shading

Shading of the NIP radiometer occurred after sunrise for a few minutes each day of the 
reported date period, between 1145 and 1215 UTC. Issue was present in the direct normal 
variable. The shading was caused by the presence of a narrow antenna that was later relocated. 

The data have been reprocessed to set specific affected periods to the missing_value 
(-9999).

• Shortwave direct normal irradiance, pyrheliometer(short_direct_normal)
• Shortwave Direct Normal Irradiance, Pyrheliometer, Maxima(short_direct_normal_max)
• Shortwave direct normal irradiance, pyrheliometer, minima(short_direct_normal_min)
• Shortwave Direct Normal Irradiance, Pyrgeometer, Standard Deviation(short_direct_normal_std)

• Instantaneous direct normal shortwave irradiance, pyrheliometer thermopile
  voltage(inst_direct_normal)