PDS_VERSION_ID = "PDS3" PRODUCT_VERSION_ID = "V2.0" DATA_SET_ID = "LRO-L-LOLA-4-GDR-V1.0" PRODUCT_ID = "LDSM_75S_240M" INSTRUMENT_HOST_NAME = "LUNAR RECONNAISSANCE ORBITER" INSTRUMENT_NAME = "LUNAR ORBITER LASER ALTIMETER" INSTRUMENT_ID = "LOLA" MISSION_PHASE_NAME = {"COMMISSIONING","NOMINAL MISSION","SCIENCE MISSION"} TARGET_NAME = MOON START_TIME = 2009-07-13T17:33:17.246 STOP_TIME = 2011-12-11T13:33:12.807 PRODUCT_CREATION_TIME = 2012-06-15T00:00:00 PRODUCER_ID = LRO_LOLA_TEAM PRODUCER_FULL_NAME = "DAVID E. SMITH" PRODUCER_INSTITUTION_NAME = "GODDARD SPACE FLIGHT CENTER" DESCRIPTION = "This data product is a map of the surface slope of the Moon at a resolution of 240m/pix by 240m/pix true at the pole in polar stereographic (spherical) projection, based on altimetry data acquired by the LOLA instrument [ZUBERETAL2012]. The LOLA Laser 1 and 2 data through mission phase LRO_SM_17 are the source for this data set. The bi-directional slope was calculated from a plane fit to three successive laser shots requiring n=5 to 15 profile returns. Depending on orbital velocity, probability of detection, and spacecraft altitude, the slope baseline may vary from 30 to 120 meters. This label describes an IMG file in the form of a binary resampling with pixel registration." OBJECT = UNCOMPRESSED_FILE FILE_NAME = "LDSM_75S_240M.IMG" RECORD_TYPE = FIXED_LENGTH FILE_RECORDS = 3812 RECORD_BYTES = 7624 ^IMAGE = "LDSM_75S_240M.IMG" OBJECT = IMAGE NAME = BIDIRECTIONAL_SLOPE DESCRIPTION = "Each sample represents the surface slope at a baseline of 240 meters. A scaling was applied to make better use of the 16-bit integer range: a flat surface corresponds to a numerical value of -30,000, and a surface tilted by 45 degrees corresponds to a numerical value of 0." LINES = 3812 LINE_SAMPLES = 3812 DERIVED_MINIMUM = -29997 DERIVED_MAXIMUM = 4197 SAMPLE_TYPE = LSB_INTEGER SAMPLE_BITS = 16 UNIT = DEGREE SCALING_FACTOR = 0.0015 OFFSET = 45. END_OBJECT = IMAGE END_OBJECT = UNCOMPRESSED_FILE OBJECT = IMAGE_MAP_PROJECTION ^DATA_SET_MAP_PROJECTION = "DSMAP_POLAR.CAT" MAP_PROJECTION_TYPE = "POLAR STEREOGRAPHIC" KEYWORD_LATITUDE_TYPE = "PLANETOCENTRIC" MAP_RESOLUTION = 126.347 A_AXIS_RADIUS = 1737.4 B_AXIS_RADIUS = 1737.4 C_AXIS_RADIUS = 1737.4 FIRST_STANDARD_PARALLEL = 'N/A' SECOND_STANDARD_PARALLEL = 'N/A' POSITIVE_LONGITUDE_DIRECTION = "EAST" CENTER_LATITUDE = -90 CENTER_LONGITUDE = 0 REFERENCE_LATITUDE = 'N/A' REFERENCE_LONGITUDE = 'N/A' LINE_FIRST_PIXEL = 1 LINE_LAST_PIXEL = 3812 SAMPLE_FIRST_PIXEL = 1 SAMPLE_LAST_PIXEL = 3812 MAP_PROJECTION_ROTATION = 0.0 MAP_SCALE = 240 MAXIMUM_LATITUDE = -75 MINIMUM_LATITUDE = -90 WESTERNMOST_LONGITUDE = 'N/A' EASTERNMOST_LONGITUDE = 'N/A' LINE_PROJECTION_OFFSET = 1905.60874416666667 SAMPLE_PROJECTION_OFFSET = 1905.60874416666667 COORDINATE_SYSTEM_TYPE = "BODY-FIXED ROTATING" COORDINATE_SYSTEM_NAME = "MEAN EARTH/POLAR AXIS OF DE421" END_OBJECT = IMAGE_MAP_PROJECTION END