ACE-1 Nitric Oxide Data from Georgia Tech ----------------------------------------- The file ACE1_NO.GT contains the Georgia Tech NO data set from the ACE-1 experiment. The data are in ASCII and include the flight number, 1995 sequential day number, UTC hour, minute and second, and the observed NO concentration and uncertainty in pptv. Observations began at the tabulated time and were 60 seconds in duration except for the period after 22:44 UTC at the end of flight 4 when the integration period was 10 seconds. NOTES: 1) Some of the reported concentrations are negative. In the past, the GT group has not reported negative concentrations, however, the ACE-1 data were collected with a chemiluminescence instrument and we have elected to conform to reporting practices previously established for this technology. 2) The data have been corrected for background offsets by using results of observations made while flushing the sample inlet with zero air. The reported uncertainties represent one standard deviation and include systematic effects (primarily flow sensor calibration accuracy) as well as observed reproducibility. 3) The instrument was not fully operational for flights 1, 2 and 3 so no data are reported for these flights.