Galileo multispectral imaging of Europa - Evidence for non-synchronous rotation

Details Galileo multispectral imaging of Europa - Evidence for non-synchronous rotation Galileo multispectral imaging of Europa - Evidence for non-synchronous rotation

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28..401g&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 401.

Computer Science

4

Europa, Galileo Spacecraft, Satellite Imagery, Planetary Orbits, Infrared Imagery, Planetary Rotation, Tectonics, Near Infrared Radiation, Structural Properties (Geology)

Scientific paper

Visible and near-IR multispectral imaging of Europa's northern high-latitude region was acquired at 37 deg phase angle from a nontargeted flyby during the Galileo spacecraft's first orbit of Jupiter. False-color composites made up from these images show at least three distinct classes of linear features on Europa's surface, which are described here. These three classes of features apparently represent different stages of development of tectonic lineaments on Europa. Spectral mapping of these lineaments reveals a clockwise rotation of stress direction with time, consistent with faster-than-synchronous planetary rotation. The non-synchronous rotation may provide an explanation for the apparent changes in orientation of these lineaments. An analysis of these lineaments is presented with regard to the non-synchronous rotation evidence.

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