The NASDA successfully launched the ADEOS at 10:53 a.m./01:53 a.m. on August 17, 1996 from Tanegashima Space Center. The main objective of ADEOS is to contribute to elucidation of phenomena of the earth system through integrated observation of geophysical parameters using a number of sensors. ADEOS was placed into the final proper orbit on September 8 and the function of the bus system and the mission instruments are now being checked out. The initial mission checkout of ADEOS will continue for 90 days until the middle of November. ADEOS is functioning normally as of September 19, 1996.