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Phobos and Deimos mutual event from Mars Express Mars Express used the Super Resolution Channel (SRC) of its High Resolution Stereo Camera (HRSC) to take 130 images of Mars' moons Phobos and Deimos on November 5, 2009, beginning at 08:14 UTC. The images were taken over a period of 90 seconds at intervals of one second, speeding up to half-second intervals toward the end. The image resolution is 110 meters per pixel for Phobos and 240 meters per pixel for Deimos; Deimos was more than twice as far from the camera. ESA / DLR / FU Berlin (G. Neukum)