urn:nasa:pds:clementine1_gravity_and_topography:topography_map:topogrd2_img 1.0 1.19.0.0 Product_Observational 2023-02-14 1.0 PDS4 migrated product. Deep Space Program Science Experiment Mission urn:nasa:pds:context:investigation:mission.deep_space_program_science_experiment data_to_investigation Clementine 1 Clementine 1 Host urn:nasa:pds:context:instrument_host:spacecraft.clem1 is_instrument_host LIDAR High-Resolution Imager Instrument urn:nasa:pds:context:instrument:clem1.lidar 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 Bottom to Top Image_Object cartography_parameters_to_image_object 0 360 90 -90 Equirectangular 0 0 0 Coordinate Pair 7580.83760603737028 7580.83760603737028 4 4 0 2729101.53817345342 Planetocentric Moon (2015) - Sphere 1737400 1737400 1737400 Positive East urn:nasa:pds:clementine1_gravity_and_topography:topography_data:topogrd2 data_to_associate topogrd2.img This file contains a digital, 0.25 X 0.25 degree resolution map of the Moon's topography relative to a sphere of radius 1737.4 km. The data are interpolated from the filtered observations by the 'blockmean and surface programs' of the GMT-system of Wessel and Smith (EOS, Transactions American Geophysical Union, v. 72, p. 441-446, 1991). It is a 1440 X 720 grid from 89.875 to -89.875 degrees latitude, and 0.125 to 359.875 degrees longitude. No attempt has been made to provide data at the poles (i.e. beyond about 78 degrees), since the numbers are unconstrained. Image_Object 0 2 Last Index Fastest A byte-scaled image showing the topography of the Moon. The following algorithm translates topography to an image DN: DN = (TOPOGRAPHY [METERS] + 7978.60) / 65.493 UnsignedByte meters 65.493 -7978.60 Line 720 1 Sample 1440 2 topogrd2.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed