Effect of surface roughness on spectral reflectance of minerals

Abstract

Rock surface observations are important method for the landing planetary survey, such as SELENE-B mission. We developed the imaging spectral microscope, and estimated the most appropriate roughness of rock surface. To be observed minerals structures, these rock surfaces should be polished, but element of specular reflection is strong at polished surfaces. And at spectral observation, element of diffused reflection is important for analysis of these data. We have to determine the most appropriate roughness of rock surface for the observation of our landing survey.