urn:nasa:pds:clementine1_gravity_and_topography:topography_data:gltm2bsh 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 gltm2bsh.tab This file contains coefficients for a spherical harmonic model of the Moon's topography field. The Clementine topography model is known as the Goddard Lunar Topography Model 2B (GLTM-2B). This is a 70th-degree and -order model, with extrapolation to the poles of the GLTM-2B data using GMT surface, the minimum curvature gridding program of Wessel and Smith (EOS, Transactions American Geophysical Union, v. 72, p. 441-446, 1991). The coefficients are in meters, and are referred to a spherical datum of radius 1738000 m. Thus, the degree zero coefficient is the actual mean radius, minus 1738000. 0 2556 The GLTM-2B table contains the coefficients for the spherical harmonic model. Each row in the table contains the degree index m, the order index n, and the coefficients Cmn and Smn. The (delimited) data require 40 ASCII characters; these are followed by a pad of 2 unspecified ASCII characters, an ASCII carriage-return, and an ASCII line-feed. Carriage-Return Line-Feed 4 0 44 coefficient degree 1 1 ASCII_Integer 2 The degree index m of the C and S coefficients in this record. coefficient order 2 4 ASCII_Integer 3 The order index n of the C and S coefficients in this record. C 3 8 ASCII_Real 16 The coefficient Cmn for this spherical harmonic model. S 4 25 ASCII_Real 16 The coefficient Smn for this spherical harmonic model. gltm2bsh.lbl 0 PDS3 Original PDS3 label Carriage-Return Line-Feed