PDS_VERSION_ID                   = PDS3                                       
RECORD_TYPE                      = STREAM                                     
 OBJECT                           = TEXT                                      
  PUBLICATION_DATE               = 2017-08-23                                 
  NOTE                           = "Description of the INDEX                  
                                   directory contents."                       
END_OBJECT                       = TEXT                                       
                    INDEX Directory Contents                                  
The INDEX directory contains tabular index files describing the               
content of the data set.  Each tabular index is accompanied by                
a detached PDS label.  The index files present depend upon the                
files in the data set.                                                        
Required files present in all data sets:                                      
INDXINFO.TXT - The file you are reading.                                      
INDEX.TAB     - Main INDEX table listing all label files                      
INDEX.LBL     - PDS Label for the main INDEX table                            
    N.B. The INDEX.TAB file contains columns for the                          
    RELEASE_ID and REVISION_ID.  This is a system                             
    used by the PSA to incrementally build up a data                          
    set and to provide a mechanism by which files can                         
    be updated without reconstructing the entire data                         
    set. The system is not used by all missions. For                          
    those missions not using the concept, a default                           
    value of RELEASE_ID=0001 REVISION_ID=0000                                 
    is used in the INDEX label and table.                                     
Optional files, depending on the content of the data set:                     
BROWSE_INDEX.TAB     - INDEX table listing all label files in the BROWSE      
BROWSE_INDEX.LBL     - PDS Label for the BROWSE_INDEX table                   
GEO_XXXX.TAB  - Geometry and position index file, where                       
                   XXXX = the reference target used to compute the            
                   geometric parameters.                                      
GEO_XXXX.LBL  - PDS Label for the GEO_XXXX.TAB index file                     
Other index files can be defined by the data set developer to list            
products in their data set and to provide valuable information and            
relate various parameters to their data products. These are                   
individual to each data set.                                                  
In the NAVCAM data sets, there are two additional indexes:                    
GEO_NAVCAM_*_INDEX.TAB  - This index  gives some geometry parameters of the   
                         orbiter related to the Sun and comet C-G/67P         
NAVCAM_*_INDEX.TAB      - This index gives additional information on the      
                        observation (exposure, target,...)                    
                 Notes on Using the Index Tables                              
     Each index table contains one row (record) for each data product         
on the volume.  The table is formatted so that it can be read directly        
into many data management systems.  All fields are separated by commas        
and character fields are enclosed in double quotation marks (").              
Character fields are left justified and numeric fields are right              
justified.  Each record ends with ASCII carriage return and line feed         
characters.  This allows the table to be treated as a fixed length            
record file on computers that support this file type and as a normal          
text file on other computers.                                                 
     The PDS label file for each table describes the content and              
structure of the fields in the index table.  This description includes        
the name of each field, its format, and a brief definition.  The              
values for start byte and number of bytes listed in the label file do         
not include commas between fields or quotation marks surrounding              
character fields.                                                             
Icon  Name                                     Last modified      Size  Description
[DIR] Parent Directory - [   ] browse_index.lbl 23-Aug-2017 08:12 5.5K [PDS label] [   ] browse_index.tab 23-Aug-2017 08:12 21K [Table file] [   ] checksum.lbl 29-May-2018 03:30 3.4K [PDS label] [   ] checksum.tab 29-May-2018 03:30 65K [Table file] [   ] geo_navcam_mtp004_index.lbl 02-Mar-2018 11:05 13K [PDS label] [   ] geo_navcam_mtp004_index.tab 02-Mar-2018 11:02 28K [Table file] [   ] index.lbl 23-Aug-2017 08:12 4.6K [PDS label] [   ] index.tab 23-Aug-2017 08:12 17K [Table file] [TXT] indxinfo.txt 02-Mar-2018 11:08 6.3K [   ] navcam_mtp004_index.lbl 02-Mar-2018 11:10 7.8K [PDS label] [   ] navcam_mtp004_index.tab 02-Mar-2018 11:11 31K [Table file]
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