The

    "./potential10800-topo500-dens500.tbl"

file contains spherical harmonic coefficients of the gravitational field 
implied by the topography

    "../topo/Moon_LDEM128_shape_pa_11519.tbl"

expanded up to degree 500 and the density

    "../dens/rho0-to10800-topo500.tbl"
    "../dens/rho1-to10800-topo500.tbl"

expanded up to degree 500.  The topography is referenced to a sphere that is 
contained completely within the Moon.

Some parameters used to get the potential coefficients:

    Newton's gravitational constant: 6.67430 * 10**-11 m**3 * kg**-1 * s**-2
    Mass of the Moon: 7.34630 * 10**22 kg
    Maximum topography power: 50
    Radius of the sphere, to which topography is referenced: 1727000.0 m

The gravity-forward modelling method of Bucha (2025) was used to get the 
potential coefficients.

REFERENCES:

Bucha, B. 2025.  Spectral gravity forward modelling of 3D variable densities 
    using an arbitrary integration radius with application to lunar topographic 
    masses.  Journal of Geodesy, 99:31 
    https://doi.org/10.1007/s00190-025-01951-9