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2001 Mars Odyssey: GRS CGS

The gamma sensor part of the GRS instrument suite stopped returning data on September 7, 2009. There are no gamma EDR, CGS, or SGS data since that event. See the ERRATA.TXT file for details.  

GRS Corrected Gamma Spectra (CGS) products are organized as a single virtual volume. Each CGS file includes data for a two-hour time span. The products are aggregated in subdirectories by day. The subdirectories are in turn grouped into directories by year.

Use the links below for direct HTTP access to any part of the GRS CGS archive. Alternatively, to search the archive for data that meet particular criteria, e.g. time and location, use the Mars Orbital Data Explorer (ODE).

AAREADME.TXT Introduction to the archive
ERRATA.TXT Notes and errata for this release
2009 directory Data products acquired January 1, 2009, through September 7, 2009
2008 directory Data products acquired January 1, 2008, through December 31, 2008
2007 directory Data products acquired January 1, 2007, through December 31, 2007
2006 directory Data products acquired January 1, 2006, through December 31, 2006
2005 directory Data products acquired January 1, 2005, through December 31, 2005
2004 directory Data products acquired January 1, 2004, through December 31, 2004
2003 directory Data products acquired January 1, 2003, through December 31, 2003
2002 directory Data products acquired February 19, 2002, through December 31, 2002
INDEX directory Index of all products in the archive
DOCUMENT directory Documentation for the archive
CATALOG directory Information about the archive in the PDS Catalog
LABEL directory Format files referenced by the PDS labels. These format files describe the column layout of the data files.
SOFTWARE directory Java source code library for parsing GRS data files
Root directory Top-level directory of the virtual volume

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Curator: Susan Slavney
NASA Official: Raymond E. Arvidson
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