PDS_VERSION_ID           =  "PDS3"                                            
DATA_SET_ID              =  "MEX-M-MRS-5-OCC-9102-V1.0"                       
DATA_SET_NAME            =  "MARS EXPRESS MARS MRS 5                          
                             OCCULTATION 9102 V1.0"                           
RELEASE_ID               =  0001                                              
REVISION_ID              =  0000                                              
PRODUCT_TYPE             =  "RDR"                                             
INSTRUMENT_TYPE          =  "RADIO SCIENCE"                                   
^INSTRUMENT_DESC         =  "MARS_DESC.TXT"                                   
TARGET_TYPE              =  "PLANET"                                          
SPACECRAFT_POINTING_MODE =  "EARTH"                                           
^SPACECRAFT_POINTING_MODE_DESC=  "MEX_POINTING_MODE_DESC.TXT"                 
INSTRUMENT_HOST_NAME     =  "MARS EXPRESS"                                    
INSTRUMENT_HOST_ID       =  "MEX"                                             
INSTRUMENT_NAME          =  "MARS EXPRESS ORBITER RADIO SCIENCE"              
INSTRUMENT_ID            =  "MRS"                                             
TARGET_NAME              =  "MARS"                                            
OBSERVATION_TYPE         =  "OCCULTATION"                                     
SPACECRAFT_CLOCK_START_COUNT =  "N/A"                                         
SPACECRAFT_CLOCK_STOP_COUNT  =  "N/A"                                         
ORBIT_NUMBER             =  1212                                              
MISSION_NAME             =  "MARS EXPRESS"                                    
MISSION_ID               =  "MEX"                                             
PROCESSING_LEVEL_ID      =  5                                                 
^ION_INFO                =  "M32ICL2L04_IIX_043622341_60.TXT"                 
PRODUCER_ID              =  "RIU_COLOGNE"                                     
PRODUCER_FULL_NAME       =  "MARTIN PAETZOLD, PI"                             
PRODUCER_INSTITUTION_NAME=  "RHEINISCHES INSTITUT FUER UMWELTFORSCHUNG,       
                             PLANETENFORSCHUNG"                               
DSN_STATION_NUMBER       =  32                                                
PRODUCT_CREATION_TIME    =  2025-11-20T12:21:48                               
STANDARD_DATA_PRODUCT_ID =  "IFMS2"                                           
SOFTWARE_NAME            =  "MEX_IONO_PROFILES_V6.0"                          
SOURCE_PRODUCT_ID        =  "M32ICL2L03_IIX_043622341_60.TAB"                 
DESCRIPTION              =  "This file contains an ionospheric                
                             electron density profile derived from Mars       
                             Express single frequency radio occultation       
                             data. Raw samples of ground station              
                             receiver output were corrected for observing     
                             conditions and converted to bending angle        
                             as a function of impact parameter. These         
                             results were then inverted to refractive index   
                             as a function of radius via an Abel transform.   
                             Electron number density was obtained from        
                             refractive index using a conversion formula      
                             appropriate to the measurement frequency."       
                                                                              
OBJECT                   =  FILE                                              
   PRODUCT_ID               =  "M32ICL2L04_IIX_043622341_60.TAB"              
   RECORD_TYPE              =  FIXED_LENGTH                                   
   RECORD_BYTES             =  157                                            
   FILE_RECORDS             =  7154                                           
   START_TIME               =  2004-12-27T23:41:47.100                        
   STOP_TIME                =  2004-12-28T00:05:37.700                        
^ION_TABLE               =  "M32ICL2L04_IIX_043622341_60.TAB"                 
                                                                              
   OBJECT                   =  ION_TABLE                                      
      NAME                     =  ION_DATA                                    
      INTERCHANGE_FORMAT       =  ASCII                                       
      ROWS                     =  7154                                        
      COLUMNS                  =  13                                          
      ROW_BYTES                =  157                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 1                                           
      NAME                      = "SAMPLE NUMBER"                             
      DATA_TYPE                 = ASCII_INTEGER                               
      START_BYTE                = 1                                           
      BYTES                     = 5                                           
      UNIT                      = "N/A"                                       
      FORMAT                    = "I5"                                        
      DESCRIPTION               = "The number of this row in the table,       
                                  starting from 1 in the first row."          
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 2                                           
      NAME                      = "UTC TIME"                                  
      DATA_TYPE                 = TIME                                        
      START_BYTE                = 8                                           
      BYTES                     = 23                                          
      UNIT                      = "N/A"                                       
      FORMAT                    = "A23"                                       
      DESCRIPTION               = "The UTC receiver date and time of          
                                  this measurement (in Earth received time),  
                                  in the format CCYY-MM-DDTHH:MM:SS.sss."     
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 3                                           
      NAME                      = "EPHEMERIS SECONDS"                         
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 33                                          
      BYTES                     = 16                                          
      UNIT                      = "SECOND"                                    
      FORMAT                    = "F16.5"                                     
      DESCRIPTION               = "Seconds from 12h 1 January 2000 TDB        
                                  corresponding to UTC TIME (column 2);       
                                  includes leap seconds."                     
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 4                                           
      NAME                      = "RADIUS"                                    
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 51                                          
      BYTES                     = 9                                           
      UNIT                      = "KILOMETER"                                 
      FORMAT                    = "F9.3"                                      
      DESCRIPTION               = "Measurement radius with respect to         
                                  the center of mass of the planet."          
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 5                                           
      NAME                      = "GEOPOTENTIAL HEIGHT"                       
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 62                                          
      BYTES                     = 9                                           
      UNIT                      = "KILOMETER"                                 
      FORMAT                    = "F9.3"                                      
      DESCRIPTION               = "Geopotential height."                      
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 6                                           
      NAME                      = "LATITUDE"                                  
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 73                                          
      BYTES                     = 7                                           
      UNIT                      = "DEGREE"                                    
      FORMAT                    = "F7.3"                                      
      DESCRIPTION               = "Aerocentric (north) latitude of            
                                  measurement in body fixed coordinates."     
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 7                                           
      NAME                      = "LONGITUDE"                                 
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 82                                          
      BYTES                     = 7                                           
      UNIT                      = "DEGREE"                                    
      FORMAT                    = "F7.3"                                      
      DESCRIPTION               = "Aerocentric (east) longitude of            
                                  measurement in body fixed coordinates."     
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 8                                           
      NAME                      = "REFRACTIVITY"                              
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 91                                          
      BYTES                     = 11                                          
      UNIT                      = "N/A"                                       
      FORMAT                    = "F11.6"                                     
      DESCRIPTION               = "Refractivity of the atmosphere."           
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 9                                           
      NAME                      = "SIGNAL LEVEL"                              
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 104                                         
      BYTES                     = 10                                          
      UNIT                      = "DECIBEL"                                   
      FORMAT                    = "F10.5"                                     
      DESCRIPTION               = "Signal intensity in decibels (dB)          
                                  relative to an arbitrary reference."        
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 10                                          
      NAME                      = "ELECTRON NUMBER DENSITY"                   
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 116                                         
      BYTES                     = 11                                          
      UNIT                      = "10^6 PER CUBIC METER"                      
      FORMAT                    = "F11.2"                                     
      DESCRIPTION               = "Electron number density of the             
                                  ionosphere at RADIUS, LATITUDE,             
                                  LONGITUDE."                                 
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 11                                          
      NAME                      = "NOISE LEVEL ELECTRON NUMBER DENSITY"       
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 129                                         
      BYTES                     = 11                                          
      UNIT                      = "10^6 PER CUBIC METER"                      
      FORMAT                    = "F11.2"                                     
      DESCRIPTION               = "Noise level of                             
                                  ELECTRON NUMBER DENSITY."                   
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 12                                          
      NAME                      = "SOLAR ZENITH ANGLE"                        
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 142                                         
      BYTES                     = 7                                           
      UNIT                      = "DEGREE"                                    
      FORMAT                    = "F7.2"                                      
      DESCRIPTION               = "Solar zenith angle at ray periapsis        
                                  at RADIUS, LATITUDE, LONGITUDE."            
    END_OBJECT               = COLUMN                                         
                                                                              
    OBJECT                   = COLUMN                                         
      COLUMN_NUMBER             = 13                                          
      NAME                      = "FRESNEL RADIUS"                            
      DATA_TYPE                 = ASCII_REAL                                  
      START_BYTE                = 151                                         
      BYTES                     = 5                                           
      UNIT                      = "KILOMETER"                                 
      FORMAT                    = "F5.2"                                      
      DESCRIPTION               = "Fresnel radius at ray periapsis            
                                  at RADIUS, LATITUDE, LONGITUDE."            
    END_OBJECT               = COLUMN                                         
                                                                              
   END_OBJECT               =  ION_TABLE                                      
                                                                              
END_OBJECT               =  FILE                                              
                                                                              
END