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Cartography of irregularly shaped satellitesIrregularly shaped satellites, such as Phobos and Amalthea, do not lend themselves to mapping by conventional methods because mathematical projections of their surfaces fail to convey an accurate visual impression of the landforms, and because large and irregular scale changes make their features difficult to measure on maps. A digital mapping technique has therefore been developed by which maps are compiled from digital topographic and spacecraft image files. The digital file is geometrically transformed as desired for human viewing, either on video screens or on hard copy. Digital files of this kind consist of digital images superimposed on another digital file representing the three-dimensional form of a body.
Document ID
19870014112
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Batson, R. M. (Geological Survey Flagstaff, AZ, United States)
Edwards, Kathleen (Geological Survey Flagstaff, AZ, United States)
Date Acquired
September 5, 2013
Publication Date
May 1, 1987
Publication Information
Publication: NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1986
Subject Category
Lunar And Planetary Exploration
Accession Number
87N23545
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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