PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM
OBJECT                = TEXT
  PUBLICATION_DATE    = 2013-03-15
  NOTE                = "Description of the DOCUMENT directory
                         contents for the GRS CDR/RDR/DAP archive volume."
END_OBJECT            = TEXT
END

=====================================================================
INTRODUCTION
=====================================================================

The DOCUMENT directory contains documentation that is considered to be
either necessary or useful for users to understand the data set. Included 
are the following documents.

=====================================================================
DOCUMENT DIRECTORY
=====================================================================
        
DOCINFO.TXT: Identifies and describes the function of each file in the
DOCUMENT directory (this file).

GRS_CDR-RDR-DAP_SIS.LBL: Detached PDS label for GRS_CDR-RDR-DAP_SIS.PDF and
GRS_CDR-RDR-DAP_SIS.HTM.

GRS_CDR-RDR-DAP_SIS.PDF: The GRS CDR-RDR-DAP SIS: "MESSENGER Gamma Ray 
Spectrometer Calibrated Data Record, Reduced Data Record, and Derived 
Analysis Product Software Interface Specification" in Adobe Acrobat format.

GRS_CDR-RDR-DAP_SIS.HTM: The GRS CDR-RDR-DAP SIS: "MESSENGER Gamma Ray 
Spectrometer Calibrated Data Record, Reduced Data Record, and Derived 
Analysis Product Software Interface Specification" in HTML format. 
Associated image files are in the "GRS_CDR-RDR-DAP_SIS_FILES" folder.

MESSGRS_PROCESSING.LBL: Detached PDS label for MESSGRS_PROCESSING.PDF and
MESSGRS_PROCESSING.HTM.

MSGR_GRS_ACS_DATA_TUTORIAL.PDF: A tutorial for the use of MESSENGER 
Gamma-Ray Spectrometer Anti-Coincidence Shield Products Generated After
the 25 February 2013 Flight Software Patch.

MSGR_GRS_ACS_DATA_TUTORIAL.LBL: Detached PDS label for the tutorial.

MESSGRS_PROCESSING.PDF: "MESSENGER Gamma Ray Spectrometer (GRS) 
EDR-to-CDR-to-RDR-to-DAP Processing" document in Adobe Acrobat format.

MESSGRS_PROCESSING.HTM: "MESSENGER Gamma Ray Spectrometer (GRS) 
EDR-to-CDR-to-RDR-to-DAP Processing" document in HTML format. Associated 
image files are in the "MESSGRS_PROCESSING_FILES" folder.

PDS_GRS_SUMMARY.TXT: Provides a summary of non-mapped GRS results.

JP2INFO.TXT: JP2 description file referenced by DAP labels.