STS-34

**STS-34**
Organization	NASA-Office of Space Flight (United States)
Mission type	Earth Science,Human Crew,Solar Physics
Launch date	October 18, 1989
Launch vehicle	Space Shuttle
Launch site	Cape Canaveral, United States
COSPAR ID	1989-084A
Inclination	34.30 degrees; first flight at this inclination
Experiments	Here
Alternate Names	SSBUV1/STS 34,20297
Additional Information	Here
PDMP Information	Here
Telecommunications Information	Here
Data Collection	Here
Payload Mass Up	22064 kg
Payload Mass Down	4829.55 kg
Orbiter	Atlantis
Lift Off Mass	2,056,465.45 kg
Orbiter Weight at Liftoff	117,076.82 kg
Orbiter Weight at Landing	89,070.00 kg
Landed	Runway 23 dry lake bed at Edwards Air Force Base, Calif.
Orbits of Earth	79
Orbital Altitude	161 nautical miles (185 statute miles)

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[edit] Crew

Commander: Donald E. Williams
Pilot: Michael J. McCulley
- Mission Specialist 1: Shannon W. Lucid
- Mission Specialist 2: Ellen S. Baker
- Mission Specialist 3: Franklin R. Chang-Diaz

[edit] Mission

STS 34 was the fifth flight of the Atlantis orbiter and the 31st shuttle mission. Its primary mission was the deployment of Galileo. It also carried a secondary payload experiment, the Shuttle Solar Backscatter Ultraviolet Experiment (SSBUV 1), that measured solar irradiance and radiation backscattered from the earth's atmosphere in twelve ultraviolet channels. From these data, total amount and height distribution of ozone could be derived. Essentially, the SSBUV 1 instrument was the same as the SBUV/2 instrument on-board the NOAA polar orbiting satellites except for a few added features including: (1) a transmitter diffuser to transmit sunlight to the SSBUV sensor module; (2) solar and nadir aspect sensors to measure the instruments inclination toward the sun and earth during observations; and (3) an inflight calibration system to perform calibration checks and account for calibration drift. Because of the calibration drift and instrument degradation of the SBUV/2, one main objective of the SSBUV 1 experiment was to operate both experiments in coincidence for calibration purposes. The total duration of this shuttle flight was 4 days, 23 hours, 39 minutes, and 20 seconds for a total of 79 orbits.

[edit] Payload

Deploy IUS with Galileo spacecraft; Shuttle Solar Backscatter Ultraviolet (SSBUV); Polymer Morphology (PM) experiments; IMAX camera project; Mesoscale Lightning Experiment (MLE); Air Force Maui Optical Site (AMOS) experiment; Growth Hormone Concentration and Distribution (GHCD) in Plants experiment; Sensor Technology Experiment (STEX); SSIP Student Experiment (SE) 82-15; Ice Crystals Experiment

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