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Mission Insignia
Mission Statistics
Launch Pad:39-A
Launch:September 12, 1991, 7:11:04 p.m. EDT.
Landing:September 18, 1991, 12:38:42 a.m. PDT, Runway 22, Edwards AFB, California
Duration:5 days, 8 hours, 27 minutes, 38 seconds.
Orbit Altitude:313 nautical miles (580 km)
Orbit Inclination:57.0 degrees
Distance traveled:2,193,670 miles (3,530,369 km)
Crew photo


Mission Parameters

Mission Highlights

Launch: September 12, 1991, 7:11:04 p.m. EDT. Launch delayed 14 minutes by a faulty communication link between KSC and Mission Control in Houston. Launch Weight: 240,062 lb (108,890 kg).

Primary payload, the Upper Atmosphere Research Satellite (UARS), deployed on the third day of the mission. During its planned 18-month mission, the 14,500-pound observatory will make the most extensive study ever conducted of the Earth's troposphere, the upper level of the planet's envelope of life-sustaining gases which also include the protective ozone layer. UARS has ten sensing and measuring devices: Cryogenic Limb Array Etalon Spectrometer (CLAES); Improved Stratospheric and Mesospheric Sounder (ISAMS); Microwave Limb Sounder (MLS); Halogen Occultation Experiment (HALOE); High Resolution Doppler Imager (HRDI); Wind Imaging Interferometer (WlNDII); Solar Ultraviolet Spectral Irradiance Monitor (SUSIM); Solar/Stellar Irradiance Comparison Experiment (SOLSTICE); Particle Environment Monitor (PEM) and Active Cavity Radiometer Irradiance Monitor (ACRIM II).

Secondary payloads were: Ascent Particle Monitor (APM); Middeck 0-Gravity Dynamics Experiment (MODE); Shuttle Activation Monitor (SAM); Cosmic Ray Effects and Activation Monitor (CREAM); Physiological and Anatomical Rodent Experiment (PARE); Protein Crystal Growth II-2 (PCG II-2); Investigations into Polymer Membrane Processing (IPMP); and the Air Force Maui Optical Site (AMOS) experiment.

Landing: September 18,1991, 12:38:42 a.m. PDT, Runway 22, Edwards AFB, CA. Rollout distance: 9,513 feet. Rollout time: 50 seconds. Landed scheduled for KSC, but diverted to Edwards due to bad weather. Orbiter returned to KSC September 26,1991. Landing Weight: 192,780 lb (87,444 kg).

See also

External links

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