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Multi-image photometric solutions for the Galilean satellitesA method for determining the limb darkening planet, acquired in the same wavelength range (lambda), within a few degrees of the same phase angle (alpha), but acquired at different illumination and viewing conditions. The two images are first geometrically registered in simple cylindrical format. A limb darkening factor is computed for each pixel pair and output as a digital image. Systematic trends with photometric coordinates across this image indicate either a calibration error or inappropriateness of the particular photometric function. This method can be used for any photometric function with a single limb darkening factor, such as the Minnaert function or the function which combines the Lommel-Seeliger and Lambert functions. By solving for many pairs of images, the limb darkening factor as a function of alpha and lambda may be determined. The two image limb darkening solutions determined for 1 Voyager image pair on Ganymede, 16 image pairs on Callisto, 44 pairs on Europa, and 19 pairs on Io are discussed.
Document ID
19840015454
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Mcewen, A. S.
(Geological Survey Flagstaff, AZ, United States)
Soderblom, L. A.
(Geological Survey Flagstaff, AZ, United States)
Date Acquired
August 12, 2013
Publication Date
April 1, 1984
Publication Information
Publication: NASA. Washington Rept. of Planetary Geology Program, 1983
Subject Category
Lunar And Planetary Exploration
Accession Number
84N23522
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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