SSM: a set of subprograms for calculating eigenvalues for a diatomic molecule using a simplified shooting method. This paper describes a set of subprograms to calculate accurate eigenvalues of the radial Schrödinger equation using a recent simplified shooting method. A total of nine subprograms were written to deal with three different potentials (Morse, Lennard-Jones and RKR) using one of three difference equations (Numerov, Cash and Raptis and Integral Superposition). Examples of using these subprograms are also given.