Galileo observations of Ganymede impact crater morphology

Details Galileo observations of Ganymede impact crater morphology Galileo observations of Ganymede impact crater morphology

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1531w&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 531.

Physics

Ganymede, Satellite Surfaces, Hypervelocity Impact, Meteorite Craters, Galileo Spacecraft, Terrain Analysis, Satellite Imagery, Morphology, Grooves

Scientific paper

We have used the Galileo G1 and G2 images to study the morphology and degradation of impact craters on Ganymede. Voyager data showed various types of craters, including craters with dark floors and ejecta, craters with pedestal ejecta, and palimpsests. With spatial resolutions ranging from 50 to 200 m/pixel in the Galileo images, features and details not resolvable in the Voyager images have provided new insight into the formation and evolution of craters on Ganymede. In this initial study, craters from six terrains on Ganymede have been analyzed, including Uruk Sulcus, Nippur Sulcus, Galileo Regio, Memphis Facula, Transitional Terrain, and the Marius Regio Groove Lane. In addition, stereo images of Uruk Sulcus and Galileo Regio have been used to measure depth/diameter ratios for several craters and to correlate albedo to topography.

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