Photometric observation of the moon with a telescopic imaging spectrometer

Abstract

ALIS (Akita Lunar Imaging Spectrometer) is a telescopic imaging spectrometer which we developed for Space Station Lunar Observatory project. A purpose of this project is to establish the photometric model of the moon as a spectral radiance standard of space-borne imaging instruments by repeated observation of the moon with a VIS/NIR (Visible and Near Infra-red light) from the International Space Station. We developed a calibration method to gain absolute radiance and relative reflectance of the moon from ALIS data and present geologic variations of reflectance spectra. This project is carried out as a part of 'Ground-based Research Announcement for Space Utilization' promoted by Japan Space Forum.