SBS/GNDRAD/M1 - Upwelling Shortwave data incorrect

Upwelling shortwave signal is flat (0 W/m^2) from 1532 UTC on 2010-09-24 through 1636 UTC 
on 2010-09-28 when it jumps to 600W/m^2. 

Value jumps between 800 W/m^2 and -9999 (missing) until 1833 UTC 2010-09-28.

Signal is adjusted downward ~250 W/m^2 at 2208 UTC on 2010-09-28. 

Data during the specified period are incorrect and cannot be corrected.

• Instantaneous Upwelling Shortwave Hemispheric Irradiance, Pyranometer(inst_up_short_hemisp)

• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Pyranometer, Maxima(up_short_hemisp_max)
• Upwelling (10 meter) Shortwave Hemispheric Irradiance, Ventilated Pyranometer,
  Standard Deviation(up_short_hemisp_std)
• Upwelling shortwave hemispheric irradiance, pyranometer, minima(up_short_hemisp_min)