Physics – Geophysics
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991pggp.rept..160m&link_type=abstract
In NASA, Washington, Reports of Planetary Geology and Geophysics Program, 1990 p 160-162 (SEE N92-10728 01-91)
Physics
Geophysics
5
Landing Sites, Mars (Planet), Mars Photographs, Mars Surface, Relief Maps, Rocks, Surface Properties, Viking Lander Spacecraft, Viking Mars Program, Cameras, Erosion, Far Fields, Frequency Distribution, High Resolution, Mosaics, Near Fields, Pixels, Populations, Size Distribution, Viking Orbiter Spacecraft
Scientific paper
Researchers mapped the surface materials at the Viking landing sites on Mars to gain a better understanding of the materials and rock populations at the sites and to provide information for future exploration. The maps extent to about 9 m in front of each lander and are about 15 m wide - an area comparable to the area of a pixel in high resolution Viking Orbiter images. The maps are divided into the near and far fields. Data for the near fields are from 1/10 scale maps, umpublished maps, and lander images. Data for the far fields are from 1/20 scale contour maps, contoured lander camera mosaics, and lander images. Rocks are located on these maps using stereometric measurements and the contour maps. Frequency size distribution of rocks and the responses of soil-like materials to erosion by engine exhausts during landings are discussed.
Keller John M.
Moore H. Jr. J.
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