OTV 1 (USA 212), also known as X-37B OTV-1, is a reusable space plane operated by AFRCO from the US. It was launched on April 22, 2010, using an Atlas V 501 launch vehicle from SLC41 at AFETR. The satellite measures 8.8 meters in length and span with a diameter of 2.9 meters, has a dry mass of 5000 kg, and was launched with the same mass. It features a deployable solar array for power generation and carries the payload X-37B No. 1 F1. The mission's objective is to serve as a reusable satellite, and it uses AOCS (Attitude and Orbit Control System) for its operations. Its shape consists of half-cylindrical and wing components. Notably, OTV 1 has had varying lifetimes, with nominal operation lasting 270 days, while specific missions ranged from 225 to 675 days. The spacecraft was manufactured by BOHB (Boeing) and serves as a significant asset for reusable space technology.