An STS-41D onboard photo shows the Solar Array Experiment (SAE) panel deployment for the Office of Aeronautics and space Technology-1 (OAST-1). OAST-1 is several advanced space technology experiments utilizing a common data system and is mounted on a platform in the Shuttle cargo bay.

S84-30259 (April 1984) --- NASA's Discovery will carry these six STS51-D crew members into space on an early summer mission. Astronaut Henry W. Hartsfield Jr. (second right, front row) is crew commander; and Michael L. Coats, right, is pilot. Astronauts Richard M. (Mike) Mullane, left; Steven A. Hawley (second left) and Judith A. Resnik are mission specialists. Charles D. Walker (back row) is payload specialist. Both the early ocean-going Discovery and the debuting spacecraft are depicted in the backdrop. The conspicuous payload in the cargo bay of the spacecraft is that of NASA's Office of Aeronautics and Space Technology (OAST-1). Photo credit: NASA