The aim of the project is to use McPhase to understand the magnetic order and excitations from Na0.77CoO2. We are able to reproduce the observed magnetic structure and spin-wave dispersion using a phenomenological model, but we would like to understand the physics with the aid of McPhase. Na0.77CoO2 is metallic and, therefore, we are unable to rely on a point-charge model to calculate the crystal-field levels. We, therefore, propose to measure the crystal-field transitions for Na0.77CoO2 using inelastic neutron scattering on MARI.