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Dimensions: 5.3 meters (17 feet) high;
magnetometer boom extends 11 meters (36 feet) to one side |
Weight: 2,223 kilograms (2� tons, or
4,902 pounds), including 118 kilograms (260 pounds) of science instruments and 925
kilograms (2040 pounds) of propellant |
Power: 570 watts (at launch) from
radioisotope thermoelectric generators |
Science Instruments: Solid-state
imaging camera, near-infrared mapping spectrometer, ultraviolet spectrometer,
photopolarimeter radiometer, magnetometer, energetic particles detector, plasma
investigation, plasma wave subsystem, dust detector, heavy ion counter |
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Size: 127 centimeters (50 inches)
diameter, 91 centimeters (36 inches) high |
Weight: 339 kilograms (750 pounds) |
Science Instruments: 339 kilograms
(750 pounds) |
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Launch: Oct. 18, 1989 from Kennedy
Space Center, Fla., on space shuttle Atlantis on mission STS-34 |
Primary Mission: October 1989 to
December 1997 |
Extended Missions: Three, from 1997
to 2003 |
Venus Flyby: Feb. 10, 1990, at altitude
of 16,000 km (10,000 mi) |
Earth Flybys: Dec. 8, 1990, at altitude
of 960 km (597 mi); Dec. 8, 1992 at altitude of 303 km (188 mi) |
Asteroid Gaspra Flyby: Oct. 29, 1991,
at 1,601 km (1,000 mi) |
Comet Shoemaker-Levy 9: Impacts of
comet fragments into Jupiter observed while en route in July 1994 |
Asteroid Ida Flyby: Aug. 28, 1993, at
2,400 km (1,400 mi) |
Atmospheric Probe Release: July 12,
1995 |
Probe speed into Jupiter's atmosphere:
47.6 km per second (106,000 mi per hour) |
Jupiter arrival and orbit insertion:
Dec. 7, 1995 |
Probe atmospheric entry and relay:
Dec. 7, 1995 |
Number of Jupiter orbits during entire mission:
34 |
Number of flybys of Jupiter moons:
Io 7, Callisto 8, Ganymede 8, Europa 11, Amalthea 1 |
Total distance traveled from launch to final impact:
4,631,778,000 kilometers (approx. 2.8 billion miles) |
Speed of spacecraft at time of impact:
48.2 kilometers per second (nearly 108,000 miles per hour) |
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Cost: Total from start of planning
through end of mission is $1.39 billion. International contribution estimated at an
additional $110 million |
Partners: More than 100 scientists from
United States, Great Britain, Germany, France, Canada and Sweden carried out
Galileo's experiments. NASA's Ames Research Center, Mountain View, Calif.,
responsible for atmosphere probe, built by Hughes Aircraft Company, El Segundo,
Calif. Radioisotope thermoelectric generators designed and built by General Electric
Co. for the U.S. Department of Energy |
Approximate number of people who worked
on some portion of the Galileo mission: 800 |
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