STS-51-G

STS-51-G
Discovery deploys Morelos-1.
NamesSpace Transportation System-18
Mission typeSatellites deployment
OperatorNASA
COSPAR ID1985-048A
SATCAT no.15823
Mission duration7 days, 1 hour, 38 minutes, 52 seconds
Distance travelled4,693,051 km (2,916,127 mi)
Orbits completed112
Spacecraft properties
SpacecraftSpace Shuttle Discovery
Launch mass116,357 kg (256,523 lb)
Landing mass92,610 kg (204,170 lb)
Payload mass17,280 kg (38,100 lb)
Crew
Crew size7
Members
Start of mission
Launch dateJune 17, 1985, 11:33:00 (1985-06-17UTC11:33Z) UTC (7:33 am EDT)
Launch siteKennedy, LC-39A
ContractorRockwell International
End of mission
Landing dateJune 24, 1985, 13:11:52 (1985-06-24UTC13:11:53Z) UTC (6:11:52 am PDT)
Landing siteEdwards, Runway 23
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Perigee altitude353 km (219 mi)
Apogee altitude359 km (223 mi)
Inclination28.45°
Period91.70 minutes
Instruments
  • Automated Directional Solidification Furnace (ADSF)
  • French Echocardiograph Experiment (FEE)
  • French Postural Experiment (FPE)
  • High Precision Tracking Experiment (HPTE)
  • Shuttle Pointed Autonomous Research Tool for AstroNomy (SPARTAN-1)

STS-51-G mission patch

Back: Lucid, Nagel, Fabian, Al Saud and Baudry
Front: Brandenstein and Creighton

STS-51-G was the 18th flight of NASA's Space Shuttle program, and the fifth flight of Space Shuttle Discovery. The seven-day mission launched from Kennedy Space Center, Florida, on June 17, 1985, and landed at Edwards Air Force Base, California, on June 24, 1985. Sultan bin Salman Al Saud from Saudi Arabia was on board as a payload specialist; Al Saud became the first Arab, the first Muslim, and the first member of a royal family to fly into space. It was also the first Space Shuttle mission which flew without at least one astronaut from the pre-Shuttle era among its crew.