High Quality Content by WIKIPEDIA articles! XSS-10 (eXperimental Small Satellite 10) was a small, low-cost spacecraft developed by the U.S. Air Force Research Laboratory's Space Vehicles Directorate to test technology for line-of-sight guidance of spacecraft. The project was declared a success shortly after launch. The Air Force Research Laboratory (AFRL) is a scientific research organization operated by the United States Air Force Materiel Command dedicated to leading the discovery, development, and integration of affordable aerospace warfighting technologies; planning and executing the Air Force science and technology program; and provide warfighting capabilities to United States air, space, and cyberspace forces.