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Mars Odyssey view of Phobos and Deimos Phobos and Deimos are seen in this movie put together from 19 images taken by the Mars Odyssey orbiter's Thermal Emission Imaging System (THEMIS) camera. The images were taken in visible-wavelength light. The apparent motion is due to progression of the camera's pointing during the 17-second span of the February 15, 2018, observation, not from motion of the two moons. The distance to Phobos from Odyssey during the observation was about 5,615 kilometers. The distance to Deimos from Odyssey during the observation was about 19,670 kilometers. NASA / JPL-Caltech / ASU / SSI