SGP/SIRS/E4 - UPS failure

On Jan 13th approximately 1400GMT the UPS failed at E4. This affected both the global and 
tracker mounted instruments. The affected measurements are down_short_hemisp(PSP), 
down_short_diffuse(8-48) and direct_normal(NIP) measurements.  The PSP down_short_hemisp 
measurement doesn't rely on the tracker but is power ventilated and is adversely affected by 
daytime solar heating when the ventilator power fails.

Disregard the data.

• inst_direct_normal
• inst_diffuse
• inst_global

• down_short_diffuse_hemisp_std
• down_short_diffuse_hemisp_max
• down_short_hemisp_std
• down_short_hemisp_max
• short_direct_normal_min
• short_direct_normal
• down_short_diffuse_hemisp
• down_short_diffuse_hemisp_min
• down_short_hemisp_min
• down_short_hemisp
• short_direct_normal_std
• short_direct_normal_max