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Publication Extents

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Mars chart, MC-10 (uncontrolled photomosaic)
Water Resources Division, U.S. Geological Survey
1972, Open-File Report 72-414
This mosaic was made with unrectified Mariner 9 computer enhanced pictures (vertical automatic gain control version) scaled for a "best fit" based on spacecraft tracking data. Discrepancies between image positions are as large as one degree in latitude and one degree in longitude. ...