The ASCII format of the P3 flight data were extracted from the NetCDF files provided by the JOSS's Office. 
Only 23 variables were extracted. The error flags of every variable are not included in this format. 


The first number in the file is the number of raws or seconds during the flight

Column, Var name, Units, Extended name
1   YEAR  common_year 
2   MONTH  month   UTC Raw Tape Date Component
3   DAY  day   UTC Raw Tape Date Component
4   HOUR  hours   UTC Raw Tape Time Component
5   MINUTE  minutes   UTC Raw Tape Date Component
6   SECOND  s   UTC Raw Tape Date Component
7   LAT  degrees_north   LATITUDE Xla1+Xla2/60
8   LON  degrees_east   LONGITUDE Xlo1+Xlo2/60
9   Ralt  meters   RADAR ALTITUDE
10  PS  mbar   PRESSURE
11  WX  m/s   E/W WIND SPEED
12  WY  m/s   N/S WIND SPEED
13  WZ  m/s   VERTICAL WIND SPEED
14  WD  degrees   WIND DIRECTION
15  WS  m/s   WIND SPEED
16  TA  degC   AMBIENT TEMPERATURE
17  TV  degK   VIRTUAL TEMPERATURE
18  PT  degK   POTENTIAL TEMP
19  ET  degK   EQUIVALENT POT.TEMP.
20  GA  m   GEOPOTENTIAL ALT. (METER)
21  RH  %   RELATIVE HUMIDITY
22  MR  gram/kg   MIXING RATIO
23  TD  degC   DEWPOINT TEMPERATURE


Example

       23810
2003  2  8 11 14 11   -17.65  -63.13     1  969.7    1.8    6.6    0.0  195.0    6.8   22.08  297.8  297.8  339.3     1  81  14.24  18.8
2003  2  8 11 14 12   -17.65  -63.13     1  969.8    1.5    6.9    0.0  192.6    7.1   22.08  297.8  297.8  339.3     1  81  14.25  18.8
2003  2  8 11 14 13   -17.65  -63.13     1  969.7    1.3    7.0   -0.1  190.9    7.1   22.08  297.8  297.8  339.4     1  81  14.25  18.8
2003  2  8 11 14 14   -17.65  -63.13     1  969.8    1.2    7.0   -0.1  189.9    7.1   22.08  297.8  297.8  339.3     1  81  14.24  18.8
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**********23810 is the number of seconds or raws in the file. There are 23 columns********