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- W770962617 abstract "The Hubble Space Telescope has experienced a problem maintaining pointing accuracy during emergence of the spacecraft from the Earth's shadow. The problem has been attributed to the rapid thermal gradient that develops when the heat from the Sun strikes the cold solar arrays. The thermal gradient causes the solar arrays to deflect or bend and this motion is sufficient to disturb the pointing control system. In order to alleviate this problem, a new design for the solar arrays has been fabricated. These new solar arrays will replace the current solar arrays during a future Hubble servicing mission. The new solar arrays have been designed so that the effective net motion of the center of mass of each panel is essentially zero. Although the solar array thermal deflection problem has been studied extensively over a period of years, a full scale test of the actual flight panels was required in order to establish confidence in the analyses. This test was conducted in the JPL Solar Simulation Facility in April, 1999. This presentation will discuss the objectives and methods of the test and present some typical test data." @default.
- W770962617 created "2016-06-24" @default.
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- W770962617 date "1999-01-01" @default.
- W770962617 modified "2023-09-24" @default.
- W770962617 title "Thermal/Dynamic Characterization Test of the Solar Array Panel for Hubble Space Telescope" @default.
- W770962617 hasPublicationYear "1999" @default.
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