STS 111, also known as Endeavour (STS-111), is a winged orbiter spacecraft owned by JSC and launched on June 5, 2002, from LC39A at AFETR using the Space Shuttle launch vehicle. It has dimensions of 37.3 meters in length, 23.8 meters in diameter, and a span of 37.3 meters. The spacecraft's dry mass is 86,750 kilograms with a launch mass of 98,660 kilograms. Its mission was to serve as a crewed spacecraft for space operations, equipped with fuel cells and batteries for power supply. Manufactured by BNAP, the orbiter has a shape characterized as "Box + 2 Wing + Fin" and is configured with an RCS (Reaction Control System) of 133.1. The satellite's orbital stability was established on June 5, 2002.