Processing Record for this file: (Make notes here unique for this file) Loading from flight 140927a Data taken from NOx CPU c:\data\NOx Data in flight appear normal. Plume is prominently apparent. It has been observed that the NO/NO2 ratios do not appear reasonable at low levels (<500 pptv). There seems to be a constant artifact in the NOx channel. This makes the NO2 reported high and should not be used directly. These data are only preliminary. Oscillations at ~19:30 - 20:00 are consistent with other measurements. Clearly showing repeated penetrations of alternating pockets of clean and dirty air.