Mathematics – Logic
Scientific paper
Mar 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1429t&link_type=abstract
Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 429.
Mathematics
Logic
1
Galilean Satellites, Satellite Surfaces, Topography, Galileo Spacecraft, Satellite Imagery, Surface Geometry, Solid State Devices, Calibrating, Io, Europa, Ganymede, Callisto, Planetary Geology
Scientific paper
The excellent performance and calibration of the Galileo SSI system allow for detailed measurements of limb coordinates of the Galilean satellites for determination of biaxial shapes and local topography. Overall shape parameters such as conformity to equilibrium ellipsoids and the difference in long and short axes helps constrain possible interior models. Determination of local topography at a variety of wavelengths, especially on Io, is useful in many geologic investigations where slopes, scales of supported loads, and erupted and eroded volumes are important. Limb coordinates can be measured to about 0.1 pixel in the image plane by modelling fall off of signal from the satellite limb. Limb profiles of 140 deg or more are useful in assembling an overall shape. Limbs of almost any length can give topography on the limb 'envelope'.
Belton Michael
Burns Jason
Davies Mike E.
Galileo SSI Team
McEwen Alfred S.
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