Estimation of Reflectance Properties of Small Solar System Bodies from Optical Remote Sensing

摘要

The general idea of this work is to create simulated pictures of Vesta and Ceres and to minimize theuddifference in brightness named Z for each pixel from the real picture taken by DAWN. The reflectanceuddistribution is simulated in a Hapke-model and relies on four parameters (Single-Scattering Albedoud(SSA) !, scattering parameter g, and two Hot-Spot parameters B0 and h). The correct parametersudare extracted by minimizing the Z-function. The model uses a single-term Henyey-Greenstein phaseudfunction and no surface roughness parameter. The real pictures are calibrated Level-1b-images. Finally,udthe results are compared to results of other works and discussed.