NASA's Mars Exploration Rover Opportunity used its panoramic camera to take the images combined into this mosaic view of the rover. The downward-looking view omits the mast on which the camera is mounted. It shows Opportunity's solar panels to be relatively dust-free. The images were taken through the camera's 600-, 530- and 480-nanometer filters during Opportunity's 322nd and 323rd martian days, or sols (Dec. 19 and 20, 2004).