The OUNA (VRAD) satellite, also known as Ouna, is operated by JAXA and serves as a lunar orbiter. It was launched on September 14, 2007, from Tanegashima Space Center using the H-IIA 2022 launch vehicle. The satellite has dimensions of 0.7 meters in length, 1 meter in diameter, and spans 1.5 meters. Its dry mass is 53 kilograms, which is also its launch mass. OUNA (VRAD) features solar cells and batteries for power generation and has a hexagonal cylindrical shape with antennas attached. The satellite's primary mission involves lunar orbit operations and was manufactured by NECTKA.