16:30 〜 16:45
*JR., Harold C. CONNOLLY1、Dante S. LAURETTA2、Shogo TACHIBANA1、Makoto YOSHIKAWA3 (1.Dept. of Natural History, Hokkaido Univ. Sapporo 060-0810, Japan、2.LPL, Univ. of Arizona, Tucson, AZ 85721, USA、3.ISAS, JAXA, Sagamihara, Kanagawa 252-5210 Japan)