PDS_VERSION_ID      = PDS3                                                    
RECORD_TYPE         = STREAM                                                  
OBJECT              = TEXT                                                    
  PUBLICATION_DATE    = 1997-09-16                                            
  NOTE                = "Description of contents of INDEX directory"          
END_OBJECT          = TEXT                                                    
END                                                                           
                                                                              
      The INDEX directory contains an index for this CD-WO 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              
the *.TAB file contains information about a single data file in the           
MGS radio science raw data archive volume.  Each line is made up of           
seven comma-delimited fixed-length fields.  Four fields contain               
character strings, which are enclosed by double quotes.                       
The other three fields contain date/time information; those values            
are NOT enclosed by quotes.                                                   
                                                                              
      The *.LBL label files describe the format and content of                
each of the respective *.TAB files at the byte level.  Simply                 
stated, the fields are:                                                       
                                                                              
              number of the CD-WO volume                                      
              path name to the PDS detached label for each data file          
                 (or, in the case of Daily Health Report (HEA) files,         
                 the path to the report itself)                               
              unique file name for the data file within this data set         
              original file name, if the file came from another source        
                 where it was named differently                               
              start date/time of the data in the file                         
              stop date/time of the data in the file                          
              creation date/time for the original file