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In the lower left box, a color mosaic of Viking Orbiter images from NASA's Planetary Photojournal. The bright feature is the permanent south polar ice cap, it is about 400 km (249 miles) across from left to right. The blue box corresponds to the area shown in the Subframe of MOC image 7709 reproduced at full resolution, about 50 meters/pixel (164 feet/pixel). The picture shows an area approximately 30 x 29 km (18.6 x 18.0 miles) in size. Sun illumination is from the lower right. The MOC picture was taken on December 29, 1997, at 3:22 PM PST, on Mars Global Surveyor's 77th orbit around Mars.
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