AEROCUBE 12B is a CubeSat (3U) satellite manufactured by AERO and launched on May 21, 2018, from WLPIS using the Antares 230 launch vehicle from Pad 0A. It has dimensions of 0.3 meters in length, 0.1 meters in diameter, and 0.3 meters in span, with a dry mass and launch mass both at 5 kilograms. The satellite is owned by AERO and its mission focuses on technology development. Its propulsion system includes electric propulsion (#4B) and it is powered by solar cells and batteries. The shape of the satellite is box-like and it operates without any specific mention of attitude control or transmitter frequencies.