A mosaic of four images of Tethys (1,071 kilometers across) taken on October 14, 2009, with Cassini’s narrow angle camera. The view is towards the Saturn-facing hemisphere.
Near center lies the large crater Penelope, overprinted by many smaller, younger impact sites.
Three smaller impact features of roughly similar size make a line to the right of Penelope. Those craters are (from top) Ajax, Polyphemus and Phemius.
Image Credit: NASA/JPL/Space Science Institute/Mosaic by astroarts.orgoff