STS -51 -A (English Space Transportation System) is a mission name for the U.S. Space Shuttle Discovery ( OV -103 ) from NASA. The launch took place on 8 November 1984. It was the 14th Space Shuttle mission and the second flight of the Space Shuttle Discovery.


  • Frederick Hauck ( second space flight), Commander
  • David Walker ( first space flight), Pilot
  • Anna Fisher ( first space flight ), Mission Specialist
  • Dale Gardner ( second space flight), Mission Specialist
  • Joseph Allen ( second space flight), Mission Specialist

Mission overview

The planned launch of Discovery on November 7, has been canceled due to a sudden change in the weather at T -20 minutes. The second attempt on 8 November went according to plan.

The mission was very much geared to satellites NASA. First, the two satellite TéléSAT H and I were SYNCOM IV (also known as LEASAT -1) exposed. Then the satellite PALAPA B2 and Westar VI, who had been exposed to in the mission STS -41 -B, were brought aboard the shuttle and taken back to Earth.

Furthermore, the experiments were carried out DMOS and RME.