Abstract
Two types of imaging spectrometer had been developed and examined. One is Advanced Lunar Imaging Spectrometer (ALIS) and another is Liquid-Crystal Tunable Filter (LCTF) Telescope. ALIS is a Cassegrain telescope equipped with two PGP (Prism-Grating-Prism) type spectrometers; Visible (VIS) one and Near Infrared (NIR) one covering 380 – 1700 nm. LCTF is a multi-band refracting telescope using a tunable liquid-crystal filter covering 650 - 1100 nm. Ground-based observations of the moon were carried out by ALIS users group. The location of the observations was Science City at the peak of Mt. Haleakala, Maui, Hawaii, USA. The dates of ob-servation were August 15 – 26, 2005 and December 12 – 18, 2005. With ALIS we detected the shift of the wavelength of absorption band of ferrous iron at around 1000 nm. The data indicate the Mg/Fe heterogeneity in lunar mare basalts and suggest important sites for SELENE observation. LCTFT was used to gain a lunar absolute radiance and reflectance. The data are useful to arrange the exposure time of SELENE optical sensors.
