Fig. 3-6: 2-dimensional plot of Neutron Separation energy of the FRDM95 Mass Model. Custom mass models can be uploaded, visualized (masses, separation energies, Q-values) with User-defined color maps, and compared to experimental mass values using the Computational Infrastructure for Nuclear Astrophysics. An approximate path for the r-process in supernovae is superimposed here to show that it roughly follows a contour of constant neutron separation energy.