Mimas - Photometric roughness and albedo map

Details Mimas - Photometric roughness and albedo map Mimas - Photometric roughness and albedo map

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992icar...99...63v&link_type=abstract

Icarus (ISSN 0019-1035), vol. 99, no. 1, p. 63-69.

Astronomy and Astrophysics

Astronomy

15

Albedo, Astronomical Photometry, Mimas, Planetary Mapping, Satellite Surfaces, Surface Roughness, Electromagnetic Scattering, Light Curve, Reflectance

Scientific paper

The backscattering phase function asssociated with bright icy satellites may render Hapke's (1986) isotropic approximation to multiple scattering inadequate. A reanalysis is accordingly conducted here of the Voyager observations of Mimas, using a modification to Hapke's equation that accommodates anisotropic multiple scattering, in order to characterize the physical and photometric properties of the heavily cratered icy surface. The roughness parameter of Mimas is in this way redefined, and an accurate albedo map is obtained which demonstrates small latitudinal and longitudinal albedo variations.

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