SGP/SIRS/E9 - TimeCheck Error

The sgp.E9 instruments (EBBR, MET, SIRS, SWATS) time clocks were drifting outside the 
allowable +/-3 seconds.  During the specified period, the swings ranged from -326 to +637 
seconds.  This period was around sunset May 6th (local time) and in the few hours 
immediately after sunset.

We are unable to quantify the time corrections at the logger level. Users are advised 

to disregard this data.

• down_short_diffuse_hemisp_std
• lat
• short_direct_normal
• up_long_hemisp_min
• short_direct_normal_std
• up_short_hemisp_std
• inst_up_long_dome_temp
• inst_down_long_shaded_case_temp
• inst_down_long_shaded_dome_temp
• down_long_hemisp_shaded_max
• up_short_hemisp
• down_long_hemisp_shaded_min
• down_short_hemisp_std
• up_long_netir
• up_long_hemisp
• down_short_diffuse_hemisp_max
• down_long_netir
• base_time
• vBatt
• short_direct_normal_max
• down_long_hemisp_shaded
• short_direct_normal_min
• down_short_diffuse_hemisp_min
• lon
• up_long_hemisp_std
• time_offset
• inst_up_long_case_temp
• up_long_hemisp_max
• up_short_hemisp_max
• down_long_hemisp_shaded_std
• down_short_diffuse_hemisp
• down_short_hemisp_min
• up_short_hemisp_min
• down_short_hemisp
• down_short_hemisp_max
• alt

• alt
• inst_up_long_hemisp_tp
• lat
• inst_global
• inst_up_long_dome_resist
• inst_down_long_shaded_dome_resist
• inst_up_short_hemisp
• inst_diffuse
• time_offset
• lon
• inst_down_long_shaded_case_resist
• inst_up_long_case_resist
• inst_direct_normal
• inst_down_long_hemisp_shaded_tp
• base_time