{"@type": "dcat:Dataset", "accessLevel": "public", "accrualPeriodicity": "irregular", "bureauCode": ["026:00"], "contactPoint": {"@type": "vcard:Contact", "fn": "Thomas Morgan", "hasEmail": "mailto:thomas.h.morgan@nasa.gov"}, "description": "A global map thermal+epithermal         neutron counting rates binned on twenty-degree quasi-equal-area         pixels is provided. The map was determined from a time series           of the rate of neutron capture by lithium in the lithium-loaded         glass scintillator, part of the +Z phoswich sensor on Dawn's Gamma      Ray and Neutron Detector (GRaND). Neutrons in the thermal and           epithermal energy range contribute to the reaction. The data were       acquired while in low altitude mapping orbit, about 385 km from         Ceres' surface (about 0.8 body radii altitude). Prior to mapping,       the time series counting data were subjected to corrections for         variations in the flux of galactic cosmic rays and measurement          geometry, as described by PRETTYMANETAL2017.", "identifier": "urn:nasa:pds:context_pds3:data_set:data_set.dawn-a-grand-5-ceres-tpe-counts-v1.0_nyzy-znr5", "issued": "2018-06-26", "keyword": ["1-ceres", "dawn-mission-to-vesta-and-ceres"], "landingPage": "https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=DAWN-A-GRAND-5-CERES-TPE-COUNTS-V1.0", "modified": "2025-07-17", "programCode": ["026:005"], "publisher": {"@type": "org:Organization", "name": "National Aeronautics and Space Administration"}, "references": ["https://pds.nasa.gov"], "theme": ["Earth Science"], "title": "DAWN GRAND MAP CERES TPE                \n                                      NEUTRON COUNTS V1.0"}