STS 76, also known as Atlantis (STS-76), is a crewed spacecraft operated by JSC and launched on March 22, 1996, from LC39B at AFETR using the Space Shuttle launch vehicle. This winged orbiter has dimensions of 37.3 meters in length and span, with a diameter of 23.8 meters. It had a dry mass of 89,497 kg and a launch mass of 99,867 kg. The spacecraft is equipped with fuel cells and batteries for power and two OME (AJ10-190) motors. Its shape can be described as box-shaped with wings and fins. The satellite's mission was to serve as a crewed spacecraft, and its payload identifier is OV-104.