CYGNUS OA-9, also known as SS J.R. Thompson, is a logistics spacecraft for the International Space Station launched on May 21, 2018, from Wallops Flight Facility using an Antares 230 launch vehicle. The satellite has dimensions of 6.4 meters in length, 2.9 meters in diameter, and a span of 10.5 meters. It has a dry mass of 2000 kg and was launched with the same mass. Manufactured by Orbital ATK (OATKD), CYGNUS OA-9 is equipped with two deployable solar arrays and batteries for power supply. The mission lasted for 66 days, focusing on delivering supplies to the Space Station. Its design includes a cylindrical body with two panels, propelled by IHI BT-4 engines and MR-106M motors.