STS-51-I

STS-51-I
van Hoften next to the crippled Syncom IV-3 (Leasat-3) satellite, during the mission's first EVA.
NamesSpace Transportation System-20
Mission typeSatellites deployment
Satellite repair
OperatorNASA
COSPAR ID1985-076A Edit this at Wikidata
SATCAT no.15992Edit this on Wikidata
Mission duration7 days, 2 hours, 17 minutes, 42 seconds
Distance travelled4,698,602 km (2,919,576 mi)
Orbits completed112
Spacecraft properties
SpacecraftSpace Shuttle Discovery
Launch mass118,981 kg (262,308 lb)
Landing mass89,210 kg (196,670 lb)
Payload mass17,540 kg (38,670 lb)[1]
Crew
Crew size5
Members
EVAs2
EVA duration
  • 11 hours, 46 minutes
  • 1st EVA: 7 hours, 20 minutes
  • 2nd EVA: 4 hours, 26 minutes
Start of mission
Launch dateAugust 27, 1985, 10:58:01 (August 27, 1985, 10:58:01) UTC (6:58:01 am EDT)
Launch siteKennedy, LC-39A
ContractorRockwell International
End of mission
Landing dateSeptember 3, 1985, 13:15:43 (September 3, 1985, 13:15:43) UTC (6:15:43 am PDT)
Landing siteEdwards, Runway 23
Orbital parameters
Reference systemGeocentric orbit
RegimeLow Earth orbit
Perigee altitude350 km (220 mi)
Apogee altitude465 km (289 mi)
Inclination28.45°
Period92.00 minutes
Instruments
Physical Vapor Transport Organic Solid Experiment (PVTOS)

STS-51-I mission patch

Back row: James D. A. van Hoften, John M. Lounge, William F. Fisher
Front row: Joe H. Engle, Richard O. Covey
← STS-51-F (19)
STS-51-J (21) →

STS-51-I was the 20th mission of NASA's Space Shuttle program and the sixth flight of Space Shuttle Discovery. During the mission, Discovery deployed three communications satellites into orbit. The mission launched from Kennedy Space Center, Florida, on August 27, 1985, and landed at Edwards Air Force Base, California, on September 3, 1985.

  1. ^ "STS-51-I Press Kit" (PDF). NASA. February 11, 2015. Public Domain This article incorporates text from this source, which is in the public domain.