urn:nasa:pds:lp_rs_jpl_gravity_derived:browse:jgl070d1_ibg 1.0 1.14.0.0 Product_Observational 2021-01-13 1.0 PDS4 migrated product. Lunar Prospector Mission urn:nasa:pds:context:investigation:mission.lunar_prospector data_to_investigation Lunar Prospector Host urn:nasa:pds:context:instrument_host:spacecraft.lp is_instrument_host Radio Science Subsystem Instrument urn:nasa:pds:context:instrument:lp.rss is_instrument Moon Satellite urn:nasa:pds:context:target:satellite.earth.moon data_to_target Image_Object display_settings_to_array Sample Left to Right Line Top to Bottom Image_Object cartography_parameters_to_image_object 0.0 360.0 90.0 -90.0 Equirectangular 0.0 0.0 -0.5 Coordinate Pair 30.33382 30.33382 1.0 1.0 -5460087.60 2730043.80 Planetocentric 1738.0 1738.0 1738.0 Positive East jgl070d1.ibg This file contains a digital, 1 X 1 degree resolution map of vertical gravity accelerations of the moon. It is a 360 x 180 grid from 89.5 to -89.5 degrees latitude, and -180.0 to 179.0 degrees longitude. The observation is vertical gravity in milligals at the surface referenced to a sphere of 1738.0 km radius. The acceleration may be from a truncation in degree of a delivered gravity field. The naming convention for the degree used is, e.g., JGL070D where 70 indicates the maximum degree of the field used to create the map. Image_Object 0 2 Last Index Fastest A byte-scaled image showing the vertical gravity accelerations of the moon. The following algorithm translates vertical gravity to an image DN: DN = (VERTICAL GRAVITY [MILLIGALS] + 392.50) / 3.709 UnsignedByte milligals 3.709 -392.50 Line 180 1 Sample 360 2 jgl070d1.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed