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STS-48 official crew insignia

STS-48

Occurred 33 years ago

The primary payload, the Upper Atmosphere Research Satellite (UARS), was deployed on the third day of the mission. During its planned 18-month mission, the 14,500-pound observatory made 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 includes the protective ozone layer.

orbiter

Discovery

mission duration

5 days, 8 hours, 27 minutes

Launch

September 12, 1991

Landing

September 18, 1991
Five men pose for crew photo in spacesuits in front of American flag.
These five astronauts were assigned to NASA’s STS-48 mission. Astronaut John O. Creighton, center, was mission commander. Astronaut Kenneth S. Reightler Jr. (right front) was pilot for the flight aboard the Space Shuttle Discovery. Mission specialists were Mark N. Brown (left, front row) and (left to right, back row) Charles D. (Sam) Gemar and James F. Buchli. (August 1991)
NASA

STS-48 Mission Facts

Mission: UARS
Space Shuttle: Discovery
Launch Pad: 39A
Launch Weight: 240,062 pounds
Launched: September 12, 1991, 7:11:04 p.m. EDT
Landing Site: Edwards Air Force Base, Calif.
Landing: September 18, 1991, 12:38:42 a.m. PDT
Landing Weight: 192,780 pounds
Runway: 22
Rollout Distance: 9,513 feet
Rollout Time: 50 seconds
Revolution: 81
Mission Duration: 5 days, 8 hours, 27 minutes, 38 seconds
Returned to KSC: September 26, 1991
Orbit Altitude: 313 nautical miles
Orbit Inclination: 57 degrees
Miles Traveled: 2.2 million

Crew

John O. Creighton, Commander
Kenneth S. Reightler, Jr., Pilot
Mark N. Brown, Mission Specialist
Charles D. Gemar, Mission Specialist
James F. Buchli, Mission Specialist

Mission Highlights

The primary payload, the Upper Atmosphere Research Satellite (UARS), was 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).

The 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.

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