PDS_VERSION_ID         = PDS3
RECORD_TYPE            = STREAM
OBJECT                 = TEXT
  PUBLICATION_DATE     = 2004-07-08
  INTERCHANGE_FORMAT   = ASCII
  NOTE                 = "Description of the DOCUMENT directory
                          contents for the Mars Exploration Rover 2
                          Operations APXS EDR archive."
END_OBJECT             = TEXT
END


                     DOCUMENT Directory Contents

The DOCUMENT directory contains documentation files for the Mars
Exploration Rover Operations APXS EDR archive.  All files ending in
".ASC" are plain ASCII text files, which are viewable on any host.  The
".HTM" files are HyperText Markup Language files, viewable with most web
browsers.  The ".PDF" files are stored as Adobe Portable Document
Format (PDF) files.  To read these, you will need the Adobe Acrobat
Reader, which is available for free from "http://www.adobe.com".  The
".LBL" files are PDS formatted labels describing the other files of
the same name.

The following files are found in the DOCUMENT directory:

DOCINFO.TXT          - The file you are now reading.

APXS_EDR_SIS.HTM - HyperText version of the "Mars Exploration
                   Rover Alpha Particle X-ray Spectrometer Experiment
                   Data Record SIS".  This document is a software
                   interface specification describing the format of
                   the MER APXS EDRs. Images in this document are
                   stored in the subdirectory APXS_EDR_SIS_FILES.

APXS_EDR_SIS.PDF - Adobe PDF version of the APXS_EDR_SIS.

APXS_EDR_SIS.LBL - PDS label describing the APXS_EDR_SIS.ASC and
                   APXS_EDR_SIS.PDF files.

MER2_APXS_OBS.CSV - Summary information for MER 2 APXS EDR products in a 
                   comma-delimited ASCII table.

MER2_APXS_OBS.LBL - PDS label describing MER2_APXS_OBS.CSV.

MER_TIME_ISSUES.TXT - Explanation of issues related to time tags in 
                   MER data products.