NASA PTD-1, also known as PTD 1, is a CubeSat (6U) technology satellite owned by ARC/TYVAK and manufactured by TYVAK. It was launched on January 24, 2021, from Cape Canaveral Air Force Station, Launch Pad LC40, aboard a Falcon 9 launch vehicle. The spacecraft has dimensions of 0.3 meters in length, 0.1 meters in diameter, and spans 1.3 meters when fully deployed. It weighs 11 kilograms both at launch and in dry mass. PTD-1 is powered by two deployable solar arrays and batteries. Its propulsion system includes three Hydros-C micro-electrospray thrusters. The satellite's purpose is to conduct technology demonstrations, and it has a box shape with no additional equipment listed.