STS-51G Fact Sheet

By Cliff Lethbridge

STS-51G — Discovery

18th Space Shuttle Mission

5th Flight of Discovery


Daniel C. Brandenstein, Commander

John O. Creighton, Pilot

Shannon W. Lucid, Mission Specialist

Steven R. Nagel, Mission Specialist

John M. Fabian, Mission Specialist

Patrick Baudry, Payload Specialist

Sultan Salman Al-Saud, Payload Specialist

Orbiter Preparations:

Tow to Orbiter Processing Facility – April 19, 1985

Rollover to Vehicle Assembly Building – May 29, 1985

Rollout to Launch Pad 39A – June 4, 1985


June 17, 1985 – 7:33:00 EDT. Launch occurred as scheduled with no delays.


June 24, 1985 – 6:11:52 a.m. PDT at Runway 23, Edwards Air Force Base, California. Rollout distance was 7,433 feet. Rollout time was 42 seconds. Mission duration was 7 days, 1 hour, 38 minutes, 52 seconds. Landing occurred during the 112th orbit.

Mission Summary:

The crew included French and Saudi Arabian astronauts in the first Shuttle flight employing astronauts from three nations. Three communications satellites, all attached to PAM-D solid rocket motors, were deployed. These included MORELOS-A for Mexico, ARABSAT-A for the Arab Satellite Communications Organization and TELSTAR-3D for A,T&T.

Other payloads included the deployable/retrievable Shuttle Pointed Autonomous Research Tool for Astronomy-1 (SPARTAN-1), six GAS experiments, Strategic Defense Initiative High Precision Tracking Experiment (HPTE), a materials processing furnace called Automated Directional Solidification Furnace (ADSF) and two French biomedical experiments.