NASA's Mars Exploration Rover Opportunity used its navigation camera to
take the images combined into this 180-degree view of the rover's
surroundings during the 1,798th Martian day, or sol, of Opportunity's
surface mission (Feb. 13, 2009). North is on top.
This view is presented as a polar projection with geometric seam
correction.
The rover had driven 111 meters (364 feet) southward on the preceding sol.
Tracks from that drive recede northward in this view. For scale, the
distance between the parallel wheel tracks is about 1 meter (about 40
inches).
The terrain in this portion of Mars' Meridiani Planum region includes
dark-toned sand ripples and lighter-toned bedrock.