PDS_VERSION_ID        = PDS3                                                  
RECORD_TYPE           = STREAM                                                
OBJECT                = TEXT                                                  
  PUBLICATION_DATE    = 2017-08-25                                            
  NOTE                = "Description of the DOCUMENT directory contents."     
END_OBJECT            = TEXT                                                  
END                                                                           
                                                                              
The DOCUMENT directory contains copies of documents that are necessary or     
useful for users to understand the archive data set. These documents are      
orgainized in the subdirectories listed below.                                
                                                                              
DATA_PROCESSING                                                               
The GRaND Data Processing document. This document describes the reduction of  
the GRaND gamma ray and neutron spectroscopy data.                            
                                                                              
SCIENCE_PLAN                                                                  
The Dawn Science Plan document. This document provides a description of the   
planned Dawn observations throughout the mission from launch through Vesta.   
It is provided as a source of information on the intent of the observations   
made by the instrument teams at Vesta. Note that not all of the planned       
observations actually occurred due to a variety of instrument resets and      
spacecraft safings.                                                           
                                                                              
SIS                                                                           
The GRaND Standard Data Products and Archive Volume Software Interface        
Specification (SIS). This document describes the contents and types of archive
volumes belonging to all of the GRaND NASA level 1 (CODMAC levels 2 and 3)    
data sets. This includes detailed descriptions of the data formats to allow   
users to read the raw and calibrated data products from which these data were 
derived.                                                                      
                                                                              
CERES_COORDINATES                                                             
The Ceres Coordinate Systems Description document. This document describes    
various Ceres coordinate systems which have been used in the literature and   
in Dawn mapping products.