Figure 14.

Enhanced false color image of the Mars-side of Phobos obtained by HiRISE [PSP_007769_9010_IRB] illustrating the relation between two different units that are either compositionally distinct or represent different degrees of space weathering alteration. Although spatially coherent, most of the color difference observed reflect variations in overall continuum slope with the most extensive material being a steeply sloped ‘red’ unit [e.g., Pieters et al., 2014]. Processing of this image is described in Thomas et al. [2010] from three broad band filters with effective wavelengths being ∼ R=874 nm, G=694, B=536 nm.