urn:nasa:pds:mess_grs_derived:data_maps:grs_dap_o_gcr_map 1.0 1.10.1.0 Product_Observational 2018-06-26 1.0 PDS4 migrated product. 2011-03-24T00:00:00Z 2011-10-11T23:59:59Z MESSENGER Mission urn:nasa:pds:context:investigation:mission.messenger data_to_investigation MESSENGER Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.mess is_instrument_host Gamma Ray Spectrometer Instrument urn:nasa:pds:context:instrument:grs.mess is_instrument Mercury Planet urn:nasa:pds:context:target:planet.mercury data_to_target Mercury Orbit 1/209412268 1/226865065 grs_dap ogcrmap display_settings_to_array Sample Left to Right Line Top to Bottom ogcrmap cartography_parameters_to_image_object -180.0 180.0 90.0 -90.0 Equirectangular 0 0.0 0.0 Coordinate Pair 21293.0165 21293.0165 2.0 2.0 -7654839.4318 3822096.4618 planetocentric mercury 2440.0 2440.0 2440.0 Positive East grs_dap_o_gcr_map.img 2018-04-17T20:56:06Z 259200 Pixel map of oxygen gamma-ray count rates. Includes contributions from the 6129-keV peak and its single and double escape peaks. The image is linearly scaled such that the maximum pixel value (255) corresponds to a count rate of 2.342 counts per minute. Conversion from Digital Number (DN) to science value is given by the equation: SCIENCE_VALUE = (DN * 0.00919) GRS Oxygen Gamma-Ray Count Rate Map ogcrmap 0 2 Last Index Fastest UnsignedByte counts/minute 0.00919 Line 360 1 Sample 720 2 0 2.342 0 grs_dap_o_gcr_map.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed grs_dap_o_gcr_map.jp2 2013-12-19T16:23:56.000Z 0 J2C Original JPEG-2000 image in PDS3 archive