IGS O-8, also known as JSE kougaku 8 gouki, is a reconnaissance satellite launched on January 12, 2024, from Tanegashima Space Center in Japan using the H-IIA 202 launch vehicle. The spacecraft has dimensions of 3 meters in length and 4 meters in diameter with a span of 16.5 meters. It has a dry mass of 1000 kg and was launched with a total mass of 1500 kg. The satellite is part of the IGS-O series, manufactured by MELCO for CSICE (China Space Industry Corporation), and its primary mission involves optical reconnaissance. The satellite's shape consists of a box with two panels attached. Additional technical details such as power source and motor are not specified in the provided data.