This oblique view from NASA's Dawn spacecraft shows Rao Crater (7 miles, 12 kilometers) at center left.
Dawn took this image on May 30, 2016, from its low-altitude mapping orbit, at a distance of about 240 miles (385 kilometers) above the surface. The image resolution is 120 feet (35 meters) per pixel.
http://photojournal.jpl.nasa.gov/catalog/PIA20868