The plot of GPSdiff_max for May 22, 2011 indicates something went haywire with the data collection between 11:05 and 17:00 UTC.
It appears that data stopped coming in on the Diamond cards at 11:05, and resumed at 17:00. The There is not a large gap in data from the 3 sensors that are sampled on the Viper serial ports, but they show large time tag delta-Ts, followed by many small delta-Ts, symptomatic of the system getting behind and having to do major buffering. Perhaps a "storm" of interrupts from the Diamond that finally cleared up? Moisture somewhere?
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