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51-I (Flight # 20) 27 August - 3 September 1985

Discovery (6)

Crew:
    Joseph H. Engle [5], Commander
    Richard O. Covey [1], Pilot
    James D. A. van Hoften [2], Mission Specialist 1
    John M. Lounge [1], Mission Specialist 2
    William F. Fisher [1], Mission Specialist 3

Launch:
    Pad: 39-A (20)
    Date: 27 August 1985
    Time: 10:58:01 UTC

Orbit:
    Altitude: 242 nm
    Inclination: 28.45 degrees
    Orbits: 112
    Duration: 7 days, 2 hours, 17 minutes, 42 seconds
    Distance: 2,919,576 miles

Landing:
    Location: Runway 17, Edwards Air Force Base, CA (14)
    Date: 3 September 1985
    Time: 13:15:43 UTC
    Rollout: 47 seconds (1,859 meters, 6,100 feet)

Highlights:
    Three communications satellites (one of them Australian) were deployed. One of them, a Synchronous Communications Satellite, failed once it reached geosynchronous orbit. Fisher and van Hoften performed two EVA's totalling 11 hours, 51 minutes. One satellite was retrieved , repaired, and redeployed.