PDS_VERSION_ID        = PDS3                                                  
RECORD_TYPE           = STREAM                                                
OBJECT                = TEXT                                                  
  PUBLICATION_DATE    = 2016-05-06                                            
  NOTE                = "Description of the DOCUMENT directory contents for   
                        the NS calibrated and derived data archive volume."   
END_OBJECT            = TEXT                                                  
END                                                                           
                                                                              
This subdirectory contains the documentation needed to understand and 
analyze the CDR/DDR data products. Files are stored in PDF and ASCII 
formats.

DOCINFO.TXT: Identifies and describes the function of each file in the
DOCUMENT directory.

NS_CDR_DDR_SIS.TXT: The NS CDR/DDR SIS: "MESSENGER Neutron Spectrometer 
Calibrated and Derived Data Record Software Interface Specification" in 
ASCII text format. Only the text is provided; for illustrations, tables, 
etc., the PDF should be consulted.                                            
                                                                              
NS_CDR_DDR_SIS.PDF: The NS CDR/DDR SIS: "MESSENGER Neutron Spectrometer 
Calibrated and Derived Data Record Software Interface Specification" in 
Adobe Acrobat format.  Note that, in contrast to the .TXT version, the 
illustrations, tables, etc. will display appropriately. 

NS_CDR_DDR_SIS.LBL: The detached label for the two NS CDR/DDR SIS files.

NS_TUTORIAL.PDF: The NS Tutorial Description of Analysis and Modeling 
Tasks. 

NS_TUTORIAL.LBL: The detached label for the tutorial document.