PDS_VERSION_ID          = PDS3                                                
RECORD_TYPE             = STREAM                                              
                                                                              
OBJECT                  = TEXT                                                
   INTERCHANGE_FORMAT   = ASCII                                               
   PUBLICATION_DATE     = 2012-02-21                                          
   NOTE                 = "Directions to documents that function as the       
                           Software Interface Specification (SIS) for this    
                           data set.                                          
                          "                                                   
END_OBJECT              = TEXT                                                
                                                                              
END                                                                           
                                                                              
                                                                              
Overview                                                                      
========                                                                      
                                                                              
  This file acts as a Software Interface Specification (SIS) Table of         
  Contents to direct the user to those files which comprise a SIS for         
  the data products in this data set.                                         
                                                                              
                                                                              
SIS-equivalent files - Summary                                                
==============================                                                
                                                                              
      DATA/DATAINFO.TXT  - Layout of, and guide to reading, data products     
  DOCUMENT/ONLABELS.TXT  - Description of PDS labels for data products        
  DOCUMENT/ACROABBR.TXT  - Acronyms and abbreviations used in this data set   
                                                                              
                                                                              
SIS-equivalent files - Details                                                
==============================                                                
                                                                              
  The data products in this data set are provided as digital files, each      
  with a human- and machine-readable PDS label that may be detached           
  (contained within the same file) or attached (contained within a separate   
  file).  The data are contained within those files, and there are three      
  flat ASCII text files that serve as a SIS i.e. that document their          
  contents:                                                                   
                                                                              
                                                                              
  DATA/DATAINFO.TXT                                                           
  -----------------                                                           
                                                                              
    The file DATAINFO.TXT in the DATA/ directory of this data set describes   
    the layout of data in the data products in this data set.  Further, it    
    describes strategies and techniques that may be used to read the data     
    products.                                                                 
                                                                              
                                                                              
  DOCUMENT/ONLABELS.TXT                                                       
  ---------------------                                                       
                                                                              
    The file ONLABELS.TXT in the DOCUMENT/ directory of this data set         
    summarizes the PDS labels for the data products in this data set.  Each   
    keyword in the PDS labels is listed and its meaning defined.  For more    
    information, the user is directed to the PDS Standards Reference and      
    the PDS Data Dictionary (PDSDD), both available from PDS.                 
                                                                              
                                                                              
  DOCUMENT/ACROABBR.TXT                                                       
  ---------------------                                                       
                                                                              
    A list of acronyms and abbreviations used in the Stardust-NExT mission    
    data sets.                                                                
                                                                              
                                                                              
  For more general information about this data set, the user is further       
  directed to the file AAAREADME.TXT in the DOCUMENT/ directory which         
  functions as a Table of Contents and Quick-start guide for the data set     
  as a whole.                                                                 
                                                                              
                                                                              
History                                                                       
=======                                                                       
                                                                              
  There is no single document in this data set which could be called a        
  Software Interface Specification (SIS) as was requested by the peer         
  reviewers.  However, there are several files created for this data set      
  which describe the data in detail.  Rather than duplicate that effort,      
  or cobble together an unfocused SIS as is present in many other PDS data    
  sets, the Stardust-NExT project chose to create this brief file as a        
  pointer to the existing files to provide SIS-equivalent functionality.