PDS_VERSION_ID  = PDS3                                                        
                                                                              
TARGET_NAME     = "GIACOBINI-ZINNER"                                          
                                                                              
DESCRIPTION     = "This file contains the geocentric ephemeris for 0h UT      
                   for comet P/Giacobini-Zinner.  The ephemeris was           
                   calculated by the Astrometry Network.  See the             
                   accompanying documentation file for further information    
                   and references."                                           
                                                                              
RECORD_TYPE  = FIXED_LENGTH                                                   
RECORD_BYTES = 108                                                            
FILE_RECORDS = 1247                                                           
                                                                              
^TABLE = "EPHEM.TAB"                                                          
                                                                              
                                                                              
OBJECT     = TABLE                                                            
  NAME               = EPHEMERIS                                              
  INTERCHANGE_FORMAT = ASCII                                                  
  COLUMNS            = 19                                                     
  ROWS               = 1247                                                   
  ROW_BYTES          = 108                                                    
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = YEAR                                                        
    BYTES       = 4                                                           
    DATA_TYPE   = ASCII_INTEGER                                               
    START_BYTE  = 1                                                           
    FORMAT      = "I4"                                                        
    UNIT        = "YEARS"                                                     
    DESCRIPTION = "Calendar year"                                             
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = MONTH                                                       
    BYTES       = 2                                                           
    DATA_TYPE   = ASCII_INTEGER                                               
    START_BYTE  = 6                                                           
    FORMAT      = "I2"                                                        
    UNIT        = "MONTH"                                                     
    DESCRIPTION = "Calendar month"                                            
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = DAY                                                         
    BYTES       = 2                                                           
    DATA_TYPE   = ASCII_INTEGER                                               
    START_BYTE  = 9                                                           
    FORMAT      = "I2"                                                        
    UNIT        = "DAYS"                                                      
    DESCRIPTION = "Calendar day"                                              
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = HOURS                                                       
    BYTES       = 3                                                           
    DATA_TYPE   = ASCII_INTEGER                                               
    START_BYTE  = 12                                                          
    FORMAT      = "F3.1"                                                      
    UNIT        = "HOURS"                                                     
    DESCRIPTION = "UT hours.  This is always = 0.0"                           
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = JULIAN_DATE                                                 
    BYTES       = 9                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 16                                                          
    FORMAT      = "F9.1"                                                      
    UNIT        = "JULIAN DAYS"                                               
    DESCRIPTION = "Full Julian date"                                          
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = "RA HOURS"                                                  
    BYTES       = 2                                                           
    DATA_TYPE   = ASCII_INTEGER                                               
    START_BYTE  = 26                                                          
    FORMAT      = "I2"                                                        
    UNIT        = "HOURS"                                                     
    DESCRIPTION = "Geocentric right ascension (hours) referred to             
                   mean equator and equinox of 1950.0. Light corrections      
                   have been applied."                                        
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = "RA MINUTES"                                                
    BYTES       = 6                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 29                                                          
    FORMAT      = "F6.3"                                                      
    UNIT        = "MINUTES"                                                   
    DESCRIPTION = "Right ascension minutes"                                   
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = "DECLINATION SIGN"                                          
    BYTES       = 1                                                           
    DATA_TYPE   = CHARACTER                                                   
    START_BYTE  = 36                                                          
    FORMAT      = "A1"                                                        
    DESCRIPTION = "Sign of the declination"                                   
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = "DECLINATION DEGREES"                                       
    BYTES       = 2                                                           
    DATA_TYPE   = ASCII_INTEGER                                               
    START_BYTE  = 37                                                          
    FORMAT      = "I2"                                                        
    UNIT        = "DEGREES"                                                   
    DESCRIPTION = "Geocentric declination (absolute degrees) referred to      
                   mean equator and equinox of 1950.0.  Light corrections     
                   have been applied."                                        
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = "DECLINATION MINUTES"                                       
    BYTES       = 5                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 40                                                          
    FORMAT      = "F5.2"                                                      
    UNIT        = "ARCMINUTES"                                                
    DESCRIPTION = "Declination arcminutes"                                    
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = DELTA                                                       
    BYTES       = 6                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 46                                                          
    FORMAT      = "F6.4"                                                      
    UNIT        = "AU"                                                        
    DESCRIPTION = "Geocentric distance of the comet"                          
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = DELDOT                                                      
    BYTES       = 8                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 53                                                          
    FORMAT      = "F8.4"                                                      
    UNIT        = "KM/SEC"                                                    
    DESCRIPTION = "Geocentric comet velocity"                                 
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = R                                                           
    BYTES       = 6                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 61                                                          
    FORMAT      = "F6.4"                                                      
    UNIT        = "AU"                                                        
    DESCRIPTION = "Heliocentric comet distance"                               
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = RDOT                                                        
    BYTES       = 8                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 69                                                          
    FORMAT      = "F8.4"                                                      
    UNIT        = "KM/SEC"                                                    
    DESCRIPTION = "Heliocentric comet velocity"                               
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = THETA                                                       
    BYTES       = 5                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 78                                                          
    FORMAT      = "F5.1"                                                      
    UNIT        = "DEGREES"                                                   
    DESCRIPTION = "Sun-Earth-Comet angle"                                     
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = BETA                                                        
    BYTES       = 4                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 84                                                          
    FORMAT      = "F4.1"                                                      
    UNIT        = "DEGREES"                                                   
    DESCRIPTION = "Sun-Comet-Earth angle"                                     
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = MOON                                                        
    BYTES       = 5                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 89                                                          
    FORMAT      = "F5.1"                                                      
    UNIT        = "DEGREES"                                                   
    DESCRIPTION = "Comet-Earth-Moon angle"                                    
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = PSANG                                                       
    BYTES       = 5                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 95                                                          
    FORMAT      = "F5.1"                                                      
    UNIT        = "DEGREES"                                                   
    DESCRIPTION = "Position angle of the extended Sun-Comet vector,           
                   measured east from North"                                  
  END_OBJECT = COLUMN                                                         
                                                                              
  OBJECT     = COLUMN                                                         
    NAME        = PSAMV                                                       
    BYTES       = 5                                                           
    DATA_TYPE   = ASCII_REAL                                                  
    START_BYTE  = 101                                                         
    FORMAT      = "F5.1"                                                      
    UNIT        = "DEGREES"                                                   
    DESCRIPTION = "Position angle of minus comet velocity vector,             
                   measured east from North"                                  
  END_OBJECT = COLUMN                                                         
                                                                              
END_OBJECT = TABLE                                                            
END