File:Around Marshall (8337893).jpg
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[edit]DescriptionAround Marshall (8337893).jpg |
English: One of the main components of the Hubble Space Telescope (HST) is the Solar Array Drive Electronics (SADE) system. This system interfaces with the Support System Module (SSM) for exchange of operational commands and telemetry data. SADE operates and controls the Solar Array Drive Mechanisms (SADM) for the orientation of the Solar Array Drive (SAD). It also monitors the position of the arrays and the temperature of the SADM. During the first HST servicing mission, the astronauts replaced the SADE component because of some malfunctions. This turned out to be a very challenging extravehicular activity (EVA). Two transistors and two diodes had been thermally stressed with the conformal coating discolored and charred. Soldered cornections became molten and reflowed between the two diodes. The failed transistors gave no indication of defective construction. All repairs were made and the HST was redeposited into orbit. Prior to undertaking this challenging mission, the orbiter's crew trained at Marshall Space Flight Center's (MSFC) Neutral Buoyancy Simulator (NBS) to prepare themselves for working in a low gravity environment. They also practiced replacing HST parts and exercised maneuverability and equipment handling. Pictured are crew members practicing on a space platform. |
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Date | Taken on 10 August 1983 | ||
Source |
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Author | NASA Marshall Space Flight Center | ||
Keywords InfoField | Hubble Space Telescope; HST; SADE; Neutral Buoyancy Simulator; NBS |
Licensing
[edit]Public domainPublic domainfalsefalse |
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This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.) | ![]() |
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current | 13:35, 27 July 2024 | ![]() | 1,024 × 663 (218 KB) | OptimusPrimeBot (talk | contribs) | #Spacemedia - Upload of http://images-assets.nasa.gov/image/8337893/8337893~orig.jpg via Commons:Spacemedia |
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