urn:nasa:pds:odyssey_grs_sgs 1.0 1.19.0.0 Product_Bundle Boynton, William 2026 10.17189/f6dz-5e88 Mars Odyssey GRS SGS (Summed Gamma Spectra) Products. The ODY MARS GAMMA RAY SPECTROMETER 5 SGS (SGS) data set is a collection of data tables that contain a gamma spectrum and the associated engineering data that has been summed over 5-degree by 5-degree latitude longitude cells on the surface of Mars and over a time period of 15 degrees of solar longitude (Ls). The SGS are produced because the individual gamma spectra collected during an approximately 19.7 second collection interval do not contain enough counts to be statistically significant. The SGS are summed over large enough and long enough spatial and temporal intervals to provide a statistically meaningful spectrum that can be used for scientific data analysis. 2026-10-01 1.0 Initial version 2001-04-25T00:00:00Z 2009-09-08T00:00:00Z Science Derived Gamma Ray Geosciences MARS Odyssey Mission urn:nasa:pds:context:investigation:mission.2001_mars_odyssey bundle_to_investigation 2001 MARS ODYSSEY Host urn:nasa:pds:context:instrument_host:spacecraft.ody is_instrument_host GAMMA RAY SPECTROMETER Instrument urn:nasa:pds:context:instrument:ody.grs is_instrument Mars Planet urn:nasa:pds:context:target:planet.mars bundle_to_target urn:nasa:pds:context:resource:resource.odyssey_grs_sgs_online has_resource 10.1023/B:SPAC.0000021007.76126.15 Boynton, W., Feldman, W., Mitrofanov, I. et al. (2004) The Mars Odyssey Gamma-Ray Spectrometer Instrument Suite, Space Science Reviews, 110, 37-83. Archive This bundle contains Mars Odyssey GRS SGS products. readme.txt 0 7-Bit ASCII Text Carriage-Return Line-Feed urn:nasa:pds:odyssey_grs_sgs:data_science_averaged Primary bundle_has_data_collection urn:nasa:pds:odyssey_grs_sgs:catalog Primary bundle_has_document_collection urn:nasa:pds:odyssey_grs_sgs:document Primary bundle_has_document_collection urn:nasa:pds:odyssey_grs_sgs:miscellaneous Primary bundle_has_miscellaneous_collection