government astronaut
(4) “government astronaut” means an individual who— (A) is designated by the National Aeronautics and Space Administration under section 20113(n); (B) is carried within a launch vehicle or reentry vehicle in the course of his or her employment, which may include performance of activities directly relating to the launch, reentry, or other operation of the launch vehicle or reentry vehicle; and (C) is either— (i) an employee of the United States Government, including the uniformed services, engaged in the performance of a Federal function under authority of law or an Executive act; or (ii) an international partner astronaut.