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Deimos from Viking 2 Orbiter Deimos is poorly explored. This is one of few color portraits, taken by Viking 2 on August 10, 1977. This is a highly processed image: the reseaux have been painted out; channels warped to align each other (because of apparent rotation of Deimos from one image to the next); and a blue channel has been synthesized from red- and clear-filter data. NASA / JPL / Emily Lakdawalla