Space Shuttle Discovery / OV-103: STS-51-C
STS-51-C was the fifteenth flight of the shuttle program and third for the Space Shuttle Discovery. It was the first space shuttle mission dedicated to the United States Department of Defense and therefore, the mission details remain classified.

Mission Data
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Space Shuttle
The Space Shuttle is a retired, partially reusable low Earth orbital spacecraft system operated from 1981 to 2011 by the U.S. National Aeronautics and Space Administration (NASA) as part of the Space Shuttle program. Its official program name was Space Transportation System (STS). Five complete Space Shuttle orbiter vehicles were built and flown on a total of 135 missions from 1981 to 2011.
Launch Site
Launch data from Launch Library 2 by The Space Devs.