A Chebyshev approximation to the earth's external gravipotential with internally unrestricted mass distribution

A Chebyshev approximation to the earth's external gravipotential with internally unrestricted mass distribution

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An investigation of the earth's gravitational potential, utilizing spherical harmonic series whose coefficients are found using Chebyshev fitting criterion. The resulting approximations agree with comparable zonal and tesseral harmonic expansions, an...