PDS_VERSION_ID      = PDS3                                                    
RECORD_TYPE         = FIXED_LENGTH                                            
RECORD_BYTES        = 80                                                      
OBJECT              = TEXT                                                    
  PUBLICATION_DATE    = 2018-07-17                                            
  NOTE                = "Description of contents of INDEX directory"          
END_OBJECT          = TEXT                                                    
END                                                                           
                                                                              
      The INDEX directory contains an index for this volume (INDEX.TAB) and   
a cumulative index for the volume set (CUMINDEX.TAB).  Accompanying each      
*.TAB file is a PDS label (INDEX.LBL and CUMINDEX.LBL, respectively).         
                                                                              
      The *.TAB files are ASCII files.  Each line (or record) in INDEX.TAB    
contains information about a single data file in this data archive volume.    
Each line in CUMINDEX.TAB contains information about a single data file in    
the archival volume set as produced to date.                                  
                                                                              
      Each line in a *.TAB file is made up of ten comma-delimited             
fixed-length fields.  Six fields contain character strings, which are         
enclosed by double quotes.  The other four fields contain date/time           
information; those values are NOT enclosed by quotes.                         
                                                                              
      The *.LBL label files describe the format and content of the respective 
*.TAB files at the byte level.  Simply stated, the fields are:                
                                                                              
         1)   identifier of the archival volume                               
         2)   path to the PDS detached label for each data file (or, in the   
                 case of files with attached labels, the path to the file     
                 itself)                                                      
         3)   name of the data file                                           
         4)   original file name, if the file came from another source        
                 where it was named differently (or blank, if there was none) 
         5)   type of the data file (a three-character mnemonic)              
         6)   start date/time of the data in the file                         
         7)   stop date/time of the data in the file                          
         8)   creation date/time for the file                                 
         9)   release identifier (a four-digit number starting from 0001 that 
                 gives the sequence in which volumes were released; when      
                 several volumes were released together, they have the same   
                 RELEASE_ID)                                                  
        10)   release date - the date on which the volume was released to the 
                 public (the most recent release date may be given as         
                 0000-00-00 since the actual date was not known when the      
                 volume was created)