AH              13   N   absolute humidity
BAROHT          54   N   barometric-corrected height
DATASRC         40   N   source that provided the data
DD               1   N   wind direction                       
DESTAPT         32   C   destination airport                  
DINT            24   N   decoding-correction indicator        
DPD             10   N   dewpoint depression                  
FF               2   N   wind speed                           
FLNUM           41   C   flight number
FLPHASE         44   N   phase of flight
GPSHT           51   N   geometric height determined by GPS
HEAD            20   N   heading                              
HT              47   N   pressure altitude                             
ICECOND         38   N   icing condition
LAT             17   N   latitude                             
LINT            23   N   location interpolation indicator     
LLSPEC          43   N   original specification of lat/lon
LON             18   N   longitude                            
LTINT           46   N   loc./time interpolation indicator       
MACH            12   N   mach number                          
MAXEDR          14   N   maximum eddy dissipation rate        
MEDEDR          37   N   median eddy dissipation rate         
ORIGAPT         31   C   originating airport                  
P               35   N   pressure                             
PEAKVG          29   N   peak vertical gust                   
PLATTYP         39   N   data platform type
Q                9   N   specific humidity                    
RCPTIME         33   C   receipt time                         
REPGSTA         30   C   reporting ground station             
REPRH           28   N   reported rh                          
REPWVQC         36   N   reported water vapor QC              
RH               8   N   relative humidity                    
RH1             49   N   rh sensor 1
RH2             50   N   rh sensor 2
RHPROBE         11   N   rh in probe                          
RHUNCER         48   N   rh uncertainty
RMAXEDR         26   N   reported maximum EDR                 
RMEDEDR         25   N   reported median EDR                  
ROLL            21   N   aircraft roll angle flag             
T                5   N   air temperature                      
TAMAIR          56   C   TAMDAR airline
TASPEED         52   N   true air speed
TD               7   N   dewpoint temperature                 
TDUNCER         55   N   dewpoint temperature uncertainy
TINT            22   N   time interpolation indicator         
TPREC           42   N   temperature precision
TRBTIME         53   C   time of maximum turbulence
TURBIDX         45   N   turbulence index
TV               6   N   virtual temperature                  
U                3   N   u wind component                     
V                4   N   v wind component                     
VACC            19   N   vertical acceleration                
WVMR            34   N   water vapor mixing ratio             
