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Space Shuttle
Flight Details 2
STS-41C/11 (Challenger)Mission Statistics:
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Mission Highlights: In addition to deploying the LDEF experiment package for retrieval on a future flight, the primary objective of this mission was the retrieval and repair of the Solar Max satellite. Nelson and van Hoften performed two space walks. During the first, Nelson used the MMU to attempt to dock with the Solar Max. This was not successful, but the shuttle remote manipulator arm was later used to grapple the satellite. During the second space walk, Nelson and van Hoften replaced damaged electronic components in the satellite. This was also the first shuttle mission to land at the Kennedy Space Center, Florida.
STS-41D/12 (Discovery)Mission Statistics:
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Mission Highlights: This was the maiden flight of the new space shuttle Discovery. On the first launch attempt, a rocket malfunction resulted in main engine shutdown just 4 seconds before liftoff. During the flight, three communication satellites were deployed. A major experiment of the mission was the erection of a 100-foot solar panel from the shuttle payload bay. This test was a demonstration of possible future construction techniques for use in space station assembly. Discovery landed at Edwards AFB.
STS-41G/13 (Challenger)Mission Statistics:
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Mission Highlights: This flight of Challenger had several firsts, including the first flight with two women aboard, the first Canadian astronaut, and the first space walk by an American woman. Sullivan and Leetsma performed tests for future satellite refueling during their space walk. During the flight, the scientific ERBS satellite was also deployed and Earth resources experiments were conducted with the Large Format Camera and SIR radar system, which were located in the shuttle payload bay. Challenger landed at Kennedy Space Center.
STS-51A/14 (Discovery)Mission Statistics:
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Mission Highlights: After deploying the two communications satellites, the crew set out to recover two communication satellites that were left in poor orbits after the 2/84 flight of STS-41B. Gardner and Allen conducted two space walks to fly to the disabled satellites with the MMU and bring them back to the shuttle. Once returned to the shuttle, the Westar and Palapa satellites were secured for return to Earth. Discovery landed at Kennedy Space Center.
STS-51C/15 (Discovery)Mission Statistics:
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Mission Highlights: This first shuttle flight of 1985 was also the first mission devoted entirely to Department of Defense experiments. Although the overall mission objectives were classified, it is known that a military electronic intelligence satellite was deployed from the shuttle. After its 3-day mission, Discovery landed at Kennedy Space Center.
STS-51D/16 (Discovery)Mission Statistics:
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Mission Highlights: What started out as a routine mission to deploy two communications satellites turned into an attempt to activate a dead satellite. After being deployed from the shuttle, the Syncom IV-3 failed to activate its booster rocket. Hoffman and Griggs then made a space walk to attach a jury-rigged hook to the end of the shuttle robot arm. This hook was used to attempt to activate a stuck switch on the side of the Syncom. However, the maneuver did not activate the Syncom, and it was left in a useless orbit for possible future repair. Upon landing at Kennedy Space Center, a tire on the Discovery blew out.
STS-51B/17 (Challenger)Mission Statistics:
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Mission Highlights: This was the second flight of the European Spacelab (although designated Spacelab 3). The primary focus of the mission was a series of biomedical experiments to study the effects of zero gravity on astronauts, as related to space sickness. A number of small animals were also carried in the Spacelab for experimentation. Materials processing experiments and studies of the Aurora Austrialis were also conducted. A radar calibration satellite built by Northern Utah University was deployed. A DOD maritime relay satellite, however, was not deployed because of a malfunction in the deployment mechanism. Challenger landed at Edwards AFB.
STS-51G/18 (Discovery)Mission Statistics:
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Mission Highlights: The primary mission objective of this flight was deployment of three communications satellites. The Spartan 1 scientific payload was deployed from the shuttle early in the mission and retrieved before the return to Earth. The two non-American astronauts participated in biomedical experiments related to space sickness. Discovery landed at Edwards AFB.
STS-51F/19 (Challenger)Mission Statistics:
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Mission Highlights: This mission almost turned into tragedy. Onboard computers shutdown one of Challenger's main engines prematurely when sensors reported the engine was overheating. However, Challenger was able to make it safely into orbit with the two remaining main engines. After initial problems with one of the Spacelab telescopes, a series of solar and astronomy experiments were carried out during the flight. The flight was extendd 1 day from the original schedule to allow more telescope observation time. Challenger landed at Edwards AFB.
STS-51I/20 (Discovery)Mission Statistics:
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Mission Highlights: After deploying three communications satellites, the crew turned to the primary task of retrieving and repairing the Syncom IV-3 satellite that was abandoned in orbit after it malfunctioned during the 4/85 flight of STS-51D. During the first of two space walks, Fisher floated to the Syncom with an MMU backpack and brought the satellite back to the shuttle, where van Hoften assisted in securing the satellite in the shuttle's payloab bay. During the second space walk, they rerouted electrical circuits to bypass a faulty switch. The repairs were successful. Discovery landed at Edwards AFB.
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