SGP/SWATS/E12 - Time drift

The time synchronization server stopped working on Feb. 19th at 22:12:16 GMT.  The clock 
was corrected by -5600.177269 seconds on March 10th at 22:47 GMT. The recorded times for 
observations are off by amounts ranging from 0 seconds on Feb. 19th to 5600 seconds on 
March 10th.

• base time in epoch(base_time)
• Total precipitation over one minute sampling period(precip)
• Time offset from base_time(time_offset)
• time_in_seconds_since_volume_start(time)

• Volumetric Water Content, West Profile(watcont_W)
• Sensor Temperature Rise, West Profile(trise_W)
• Soil Temperature, East Profile(tsoil_E)
• base time in epoch(base_time)
• Soil Water Potential, East Profile(soilwatpot_E)
• Sensor Temperature Rise, East Profile(trise_E)
• Time offset from base_time(time_offset)
• Volumetric Water Content, East Profile(watcont_E)
• Soil Temperature, West Profile(tsoil_W)
• Soil Water Potential, West Profile(soilwatpot_W)
• Reference Thermistor Temperature(tref)