PDS_VERSION_ID = PDS3                                                         
                                                                              
RECORD_TYPE  = FIXED_LENGTH                                                   
RECORD_BYTES = 82                                                             
FILE_RECORDS = 2094                                                           
                                                                              
^TABLE       = "EPACHAN3.TAB"                                                 
                                                                              
DATA_SET_ID  = "GIO-C-EPA-3-RDR-GRIGG-SKJELL-V1.0"                            
PRODUCT_ID   = "EPA-EPACHAN3-199512"                                          
PRODUCT_NAME = "GIOTTO Extended Mission, EPA 1-minute Averages, Channel 3"    
PRODUCT_CREATION_TIME = 1995-02-24                                            
                                                                              
TARGET_NAME          = "26P/GRIGG-SKJELLERUP 1 (1922 K1)"                     
INSTRUMENT_HOST_NAME = "GIOTTO"                                               
INSTRUMENT_NAME      = "ENERGETIC PARTICLE EXPERIMENT"                        
START_TIME   = 1992-07-09T16:20:00.000                                        
STOP_TIME    = 1992-07-11T03:14:00.000                                        
                                                                              
SPACECRAFT_CLOCK_START_COUNT = "UNK"                                          
SPACECRAFT_CLOCK_STOP_COUNT  = "UNK"                                          
                                                                              
RECORD_FORMAT = "I2,1X,I2,1X,I2,8(1X,F8.3)"                                   
DESCRIPTION  = "This file contains 1-minute average count rates in each       
                of eight sectors for Channel 3 of the Energetic Particle      
                Analyser (EPA) on Giotto during its extended mission to       
                comet P/Grigg-Skjellerup.                                     
                                                                              
    For the two species most likely to be encountered during the flyby,       
    protons and H20+, the energy threshold for this channel corresponds       
    to:                                                                       
                                                                              
               Protons: 78-215 keV     H2O+: 144-270 keV                      
  "                                                                           
                                                                              
OBJECT        = TABLE                                                         
  NAME        = "CHANNEL 3 DATA"                                              
                                                                              
  INTERCHANGE_FORMAT = ASCII                                                  
  COLUMNS     = 12                                                            
  ROW_BYTES   = 82                                                            
  ROWS        = 2094                                                          
  DESCRIPTION = "1-minute average count rates in each of eight sectors.       
                 Start time for the average is given; averages were           
                 obtained simultaneously.                                     
                                                                              
    There is one record for each 1-minute interval in the time span           
    covered by the file.  Missing count rates are indicated by the            
    value '-999.999'.  During the interval 09 18:10 to 10 04:20,              
    telemetry problems resulted in only half the data being collected,        
    so that even sectors in this period contain the null data flag.           
    "                                                                         
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = DAY                                                       
    BYTES         = 2                                                         
    DATA_TYPE     = ASCII_INTEGER                                             
    START_BYTE    = 1                                                         
    FORMAT        = "I2"                                                      
    UNIT          = "DAYS"                                                    
    DESCRIPTION   = "The day (in July 1992) of the observation"               
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = HOUR                                                      
    BYTES         = 2                                                         
    DATA_TYPE     = ASCII_INTEGER                                             
    START_BYTE    = 4                                                         
    FORMAT        = "I2"                                                      
    UNIT          = "HOURS"                                                   
    DESCRIPTION   = "Hour of the start of readings for this row"              
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "TIME DELIMITER"                                          
    BYTES         = 1                                                         
    DATA_TYPE     = CHARACTER                                                 
    START_BYTE    = 6                                                         
    FORMAT        = "A1"                                                      
    DESCRIPTION   = "This column contains the colon character (:)"            
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = MINUTE                                                    
    BYTES         = 2                                                         
    DATA_TYPE     = ASCII_INTEGER                                             
    START_BYTE    = 7                                                         
    FORMAT        = "I2"                                                      
    UNIT          = "MINUTES"                                                 
    DESCRIPTION   = "Minute of the start of readings for this row.            
                     Each sector rate listed is an average over the           
                     one minute interval starting at this time and            
                     ending one minute later."                                
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 1 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 9                                                         
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "First sector 1-minute average count rate"                
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 2 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 18                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Second sector 1-minute average count rate"               
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 3 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 27                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Third sector 1-minute average count rate"                
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 4 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 36                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Fourth sector 1-minute average count rate"               
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 5 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 45                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Fifth sector 1-minute average count rate"                
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 6 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 54                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Sixth sector 1-minute average count rate"                
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 7 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 63                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Seventh sector 1-minute average count rate"              
  END_OBJECT                                                                  
                                                                              
  OBJECT          = COLUMN                                                    
    NAME          = "SECTOR 8 RATE"                                           
    BYTES         = 9                                                         
    DATA_TYPE     = ASCII_REAL                                                
    START_BYTE    = 72                                                        
    FORMAT        = "F9.3"                                                    
    UNIT          = "COUNTS/SECOND"                                           
    INVALID_CONSTANT      = -999.999                                          
    VALID_MINIMUM = 0.0                                                       
    DESCRIPTION   = "Eighth sector 1-minute average count rate"               
  END_OBJECT                                                                  
                                                                              
END_OBJECT    = TABLE                                                         
                                                                              
END