SGP/SIRS - SIRS E11 April 1999 (SERI-QC Results)

Data quality for this site is very good this month. All daytime data are present, and 96% 
of the present daytime data earn passing or low-level flags. Low-level flags are seen in 
the early morning hours under clear to fair sky conditions, indicating that the DS 
(global horizontal) is too low, or that the NIP (direct normal) or DD (diffuse horizontal) is 
too high. Overcast skies cause the DD and DS to fall below twilight or daytime empirical 
limits on a number of occasions. The suntracker failed for an hour or so on the morning of 
the 6th. During Preventive Maintenance later in the morning the alignment was adjusted. 
No problems noted in the UIR, DIR or US signals.

• down_long_hemisp
• base_time
• down_short_diffuse_hemisp
• down_short_hemisp_max
• down_short_hemisp_std
• up_long_hemisp_min
• short_direct_normal_std
• short_direct_normal_max
• down_short_diffuse_hemisp_min
• down_long_hemisp_max
• down_long_hemisp_std
• down_short_hemisp
• short_direct_normal
• lon
• down_long_hemisp_min
• vBatt
• lat
• up_short_hemisp_std
• up_short_hemisp
• up_short_hemisp_max
• up_long_hemisp
• up_long_hemisp_max
• short_direct_normal_min
• down_short_hemisp_min
• down_short_diffuse_hemisp_max
• up_long_hemisp_std
• down_short_diffuse_hemisp_std
• up_short_hemisp_min
• alt
• time_offset

• short_diffuse
• alt
• down_long_dome_resist
• nip
• down_long_hemisp
• lat
• base_time
• lon
• down_long_case_resist
• down_short_hemisp
• time_offset
• up_long_dome_resist
• up_short_hemisp
• up_long_case_resist
• up_long_hemisp