Images of the four candidate sampling sites and of the crater C13 (left) with the associated spectral phase reddening plots for the spectral slope evaluated in the 0.55–2.50 μm range (right). Coordinates are given in Table 4. Images are taken from the Bennu global mosaic (Bennett et al. 2020). Each image is centered on a given ROI with a dimension of 10° in latitude (horizontal axis), and 20° in longitude (vertical axis).