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28 April 1991
11:31 GMT. Duration: 8.31 days. Call Sign: Discovery. Nation: USA. Agency: NASA. Launch Site: Cape Canaveral . Launch Complex: LC39A. Launch Vehicle: Shuttle. LV Configuration: STS-39. Program: STS. Class: Manned. Type: Spaceplane. Spacecraft: Discovery. Payload: Discovery F12. Mass: 9,712 kg. Perigee: 248 km. Apogee: 263 km. Inclination: 57.0 deg. Period: 89.6 min. References: 1 , 2 , 5 , 6 , 7 . 
