SGP/SIRS - SIRS E22 April 1999

Data quality is excellent at this site this month. Present daytime data is at 100%. Just 
over 98% of the present daytime data earn passing or low-level flags.  In the first week 
of the month low-level flags indicate that the DS is too high by the three-component test, 
or that the DD or NIP is too low. Heavy cloud cover on several occasions caused the DS 
and DD to fall below daytime empirical limits. On the afternoon of the 14th the NIP fell 
below daytime empirical limits for a short time. Shortly before noon on the 26th the DS 
signal was above daytime empirical limits. No problems note in the DIR, UIR or US signals.

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

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