PDS_VERSION_ID      = PDS3                                                    
RECORD_TYPE         = FIXED_LENGTH                                            
RECORD_BYTES        = 80                                                      
OBJECT              = TEXT                                                    
  PUBLICATION_DATE    = 1999-09-01                                            
  NOTE                = "Description of contents of DOCUMENT directory "      
END_OBJECT          = TEXT                                                    
END                                                                           
                                                                              
                                                                              
     The DOCUMENT directory contains material that would be useful for        
better understanding the observations and data products in this               
archival volume.  Because of its volume, the full DOCUMENT directory          
is included only on the final volume (this volume) of the data set; an        
abbreviated DOCUMENT directory, providing information on binary formats       
of certain data files, is included on other volumes.                          
                                                                              
     Also of potential interest are files in the CATALOG directory,           
intended for use in the Planetary Data System central catalog.  These         
files include descriptions of the Voyager mission, the spacecraft and         
Deep Space Network, the radio science 'instrument', and the data set.         
                                                                              
     Each file in the DOCUMENT directory is an ASCII file.  The files are:    
                                                                              
                                                                              
DOCINFO.TXT                                                                   
                                                                              
     This file, providing an overview of the directory contents.              
                                                                              
                                                                              
CRS80SIS.TXT                                                                  
                                                                              
     An abbreviated SIS showing the presumed structure of Univac binary       
CRS files.  This document is primarily of historic significance; a more       
useful description of formats is in CRSTAPES.TXT.                             
                                                                              
                                                                              
CRSTAPES.TXT                                                                  
                                                                              
     A description of CRS binary and ASCII formats, including examples        
of how to unpack the Univac 6-bit character, 36-bit integer, and 72-bit       
floating point values.  Unpacking should not be necessary for users           
satisfied with the ASCII versions of the CRS data in the GEOMETRY             
directory or intending to use SPICE files.                                    
                                                                              
                                                                              
MBODRPRC.TXT                                                                  
                                                                              
     A table showing the processing schedule for Medium-Band Original Data    
Record (MBODR) tapes from the Voyager 1 Titan and Saturn encounters.          
                                                                              
                                                                              
OP1S_TXT.LBL                                                                  
                                                                              
     PDS label file defining the Radio Science Operations Handbook for        
the Voyager 1 Saturn (and Titan) encounters.  The document itself includes    
a text component (OP1S_TXT.ASC) and 59 figures (PostScript files with names   
of the form OP1SFmnn.PS, where  m  is the section and  nn  the figure         
number).                                                                      
                                                                              
                                                                              
OP1S_TXT.ASC                                                                  
                                                                              
     See OP1S_TXT.LBL                                                         
                                                                              
                                                                              
OP1SFmnn.PS                                                                   
                                                                              
     See OP1S_TXT.LBL                                                         
                                                                              
                                                                              
RSC_11_5.TXT                                                                  
                                                                              
     The Software Interface Specification defining the format for binary      
POCA files.  This document describes the format of VG1TPOC1.DAT in the        
CALIB directory.                                                              
                                                                              
                                                                              
RSC_11_6.TXT                                                                  
                                                                              
     The Software Interface Specification defining formats for binary         
open-loop data files.  This document describes the format of the raw          
radio science data from this set of occultation measurements (all of          
the raw data files in the ODR directory).                                     
                                                                              
                                                                              
TAPELIST.TXT                                                                  
                                                                              
     A short document describing the naming convention for ODR tapes.         
The document also includes a table showing times, frequencies, and            
polarizations covered by each tape.  This document should be very             
helpful to users wishing to process only selected portions of the             
data set.                                                                     
                                                                              
                                                                              
TCI10TXT.LBL                                                                  
                                                                              
     PDS label file defining a DSN document which describes the DSN 64-meter  
network capabilities (antennas, transmitters, and receivers).  The document   
itself includes a text component (TCI10TXT.ASC) and 2 figures (PostScript     
files with names of the form TCI10_Fn.PS, where  n  is the figure number).    
                                                                              
                                                                              
TCI10TXT.ASC                                                                  
                                                                              
     See TCI10TXT.LBL                                                         
                                                                              
                                                                              
TCI10_Fn.PS                                                                   
                                                                              
     See TCI10TXT.LBL                                                         
                                                                              
                                                                              
TIMELINE.TXT                                                                  
                                                                              
     Table A-2 from OP1S_TXT.ASC, listing important radio science events      
and activities during the titan encounter.                                    
                                                                              
                                                                              
TK_DESCR.TXT                                                                  
                                                                              
     Document describing the structure and contents of the current version    
of the NAIF SPICE toolkit (for Sun/Solaris).                                  
                                                                              
                                                                              
TK_FTP.TXT                                                                    
                                                                              
     Document containing instructions for obtaining the NAIF Toolkit          
software via Internet.  This document points to other documentation on        
Toolkit organization and use.                                                 
                                                                              
                                                                              
TK_INSTL.TXT                                                                  
                                                                              
     NAIF Toolkit Installation Instructions for the Sun/Solaris system.       
Structure, contents, and installation for other platforms will be             
similar; see TK_FTP.TXT for information on obtaining other versions.          
                                                                              
                                                                              
USOFREQS.TXT                                                                  
                                                                              
     Document summarizing knowledge of USO frequencies at giant planet        
encounters.