Processing Record for this file:
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Loading from flight 140319a
Data taken from NOx CPU c:\data\NOx

Data in flight appear normal.

It has been observed that the NO/NO2 ratios do not appear reasonable at low levels (<500 pptv).  The zero on the NO channel appears erroneously high.  This affects both the NO and the NO2 results at low values.  These data are only preliminary.

Data was lost in the air from 15:34 to 16:11.  It's not clear what happened.  After restart, the instrument appeared to take some time to return to baseline.  This flight should be viewed with less confidence on the NO/NO2/NOy channels.

NO2 channel appears to have a high background.  From 16:30 to 17:00, the Mo converter temperature went down to 250 C.  It's not clear if this was a fault in the control or inability of the heater to keep up.

NOx channel offset appears very consistent and will be subtracted later.