Fig. 18
From: High-resolution shape models of Phobos and Deimos from stereophotoclinometry
(Top) The global SPC shape model of Deimos, seen along the axes and rendered without albedo. The global model has an average resolution of 20Â m per facet, a total of over 3 million facets, and was constructed from 332 images. Areas shaded yellow are constrained only by limbs. (bottom) The global SPC shape model of Deimos including the limb points used to constrain the model. The limb points have been radially offset slightly above the body to aid visibility