STS 101, also known as Atlantis (STS-101), is a US winged orbiter spacecraft manufactured by BNAP and operated by JSC. Launched on May 19, 2000, from LC39A at AFETR using the Space Shuttle launch vehicle, it has dimensions of 37.3 meters in length and span, with a diameter of 23.8 meters. The spacecraft's dry mass is 90,552 kg, and its launch mass was 101,377 kg. Equipped with fuel cells and batteries for power and two OME (AJ10-190) motors, STS 101 serves as a crewed spacecraft designed for space missions. Its shape is described as a box with wings and fins.