The HRSC camera on ESA’s Mars Express took some close up picture of the Phobos Mars moon during a flyby on July 23.
(credit: DLR) The images were taken at a distance of 93 km. They are the most detailed pictures of Phobos, says the German aerospace agency, DLR, which operates the HRSC camera.
The pictures have a resolution of 3.7 meters per pixel and were taking at a relative closing speed of 3 km per second.
There's more detail here on DLR's site.