Physics
Scientific paper
Oct 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981cuni.rept.....v&link_type=abstract
Semiannual Status Report, 1 Mar. - 31 Aug. 1981 Cornell Univ., Ithaca, NY. Center for Radiophysics and Space Research.
Physics
Celestial Bodies, Geometry, Photometry, Powder (Particles), Spectral Reflectance, Basalt, Data Processing Equipment, Graphs (Charts), Photogoniometers, Sulfur
Scientific paper
Progress is reported in obtaining valuable results needed for the full interpretation of the spectral reflectance curves of solar system objects. The degree to which photometric geometry affects spectral reflectance curves was demonstrated. Various forms of photometric functions were compared and a function adequate for describing the scattering properties of low and moderately reflecting materials was developed and applied in a study of the phase coefficients of various materials, as well as in a study of how the shape of a body affects the spectral reflectance properties. The adequacy of the photometric function for Mars-like analogs was studied. The goniometer system is being converted to a computer driven mode. As soon as computer controls are integrated in the goniometer, the phase dependence 0.95 micron feature in meteorite spectra is scheduled to begin.
Gradie Jonathan C.
Veverka Joe
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