urn:nasa:pds:clementine1_gravity_and_topography:topography_data:topogrd2 1.0 1.19.0.0 Product_Observational 2023-02-13 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 urn:nasa:pds:clementine1_gravity_and_topography:topography_map:topogrd2_img data_to_associate topogrd2.dat 103680 This file contains a digital, 0.25 X 0.25 degree resolution map of the Moon's topography relative to a spheroid of radius 1738 km at the equator, with a flattening of 1/3234.93. 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. The file contains 720 blocks of 144 records each, with each record containing 10 topography values plus an ASCII carriage- return line-feed pair as a delimiter. The first block contains values at -89.875 latitude; the first value in the first record is the topography at (-89.875, 0.125). 0 7-Bit ASCII Text This is a 2-D grid of the topography of the Moon in meters Carriage-Return Line-Feed topogrd2.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed