Data processing plans of Spectral Profiler on Kaguya (SELENE) mission for identification of the mineral compositions of the lunar surface

Abstract

Spectral Profiler (SP) is a visible and near infrared spectrometer onboard SELENE (KAGUYA) spacecraft and observes the Moon for about 1 year. SP covers 500-2600nm in wavelength with high spectral resolutions of 6-8nm and SNRs of ~2300@810-860nm and could identify the mineralogical compositions of the lunar surface and contributes to the completion of the global map of the mineral distribution. We present our data processing plans of SP, including radiometric calibration and further analyses. We also discuss the method how we could retrieve the mineralogical information correctly from the continuous reflectance data of optical remote sensing, focusing the case of the Moon. We introduce the necessary procedures of data processing of SP to make a very initial mineralogical map with low resolution, to identify cryptomare deposits, to detect the material of mantle-origin, and to clarify the vertical distribution of minerals at the walls of large craters.