PDS_VERSION_ID      = PDS3                                                    
RECORD_TYPE         = FIXED_LENGTH                                            
RECORD_BYTES        = 80                                                      
OBJECT              = TEXT                                                    
  PUBLICATION_DATE    = 1998-10-30                                            
  NOTE                = "Description of contents of CATALOG directory "       
END_OBJECT          = TEXT                                                    
END                                                                           
                                                                              
                                                                              
                                                                              
      The CATALOG directory contains mission, host, instrument, reference,    
personnel, and data set PDS catalog objects for this archive volume.  The     
files follow the 'streamlined' format adopted by the Planetary Data System    
(PDS) in late 1993 and documented in the Planetary Data System Standards      
Reference (Version 3.1, 3 August 1994; JPL D-7669, Part 2).                   
                                                                              
     Each catalog object is in ASCII, with a maximum of 80 characters per     
line.  Each line is delimited with a carriage-return (ASCII 13) line-feed     
(ASCII 10) pair.                                                              
                                                                              
     The files are:                                                           
                                                                              
                                                                              
MISSION.CAT                                                                   
                                                                              
     A brief description of the mission.  It includes a chronology of events, 
definition of mission phases, and science objectives.                         
                                                                              
                                                                              
INSTHOST.CAT                                                                  
                                                                              
     A description of the Galileo spacecraft and a very brief overview of     
the NASA Deep Space Network.                                                  
                                                                              
                                                                              
INST.CAT                                                                      
                                                                              
     An overview of the spacecraft radio system used for these experiments    
on Galileo, and a summary (albeit long) description of the Deep Space         
Network instrumentation which support radio science experiments.  Also        
included are summaries of the science objectives sought using the instrument. 
                                                                              
                                                                              
REF.CAT                                                                       
                                                                              
     A listing of references used elsewhere in the catalog files and of       
references that might be generally useful in working with these data.         
                                                                              
                                                                              
PERSON.CAT                                                                    
                                                                              
     A listing of key people involved in analyzing the radio data and in      
producing the archival data set.                                              
                                                                              
                                                                              
DATASET.CAT                                                                   
                                                                              
     A description of the data set contained in the archival volume.  The     
file includes information on the data types included in the archive           
collection.