Fig. 1
From: Small-scale topographic irregularities on Phobos: image and numerical analyses for MMX mission
a Locations of the study regions shown on the Stooke map of Phobos (Stooke 2015) overlapped by a part of the georeferenced MOC image (b). b The spatial relationship of the study regions. Regions A and B (Regions B1–B4) are shown as a red rectangle and four blue rectangles, respectively. c Non-rectified MOC image SP2-55103. The yellow-dashed rectangle is the mapped area of this study shown in d. d Colorized map of the spatial distribution of local incidence angles of the study region. The base image is the corresponding part of the grayscale MOC image. e Histogram of solar-incidence angles of Regions A and B