Lessons from Chandrayaan-1

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Lessons from Chandrayaan-1

机译：Chandrayaan-1的经验教训

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Initial indications are that the premature end to India's Chandrayaan-1 lunar orbiter mission was the result of a miscalculation by scientists at the Indian Space Research Organisation (ISRO) of the thermal stresses the spacecraft would encounter in its operating environment.rnTemperatures at Chandrayaan-1's 100-kilometer orbit proved hotter than expected, causing some of the spacecraft's components to overheat and malfunction. The issue was discovered in the weeks immediately following Chandrayaan-1's October launch, forcing ISRO to take thermal control measures that culminated in May when the agency moved the spacecraft to a higher orbit. It appears, however, that by that time, the damage was done, and Chandrayaan-1 succumbed at the end of August -just nine months into what was supposed to have been at least a two-year mission studying the Moon.

机译：最初的迹象表明，印度的Chandrayaan-1号月球轨道飞行器过早结束是印度航天研究组织（ISRO）的科学家错误估计了航天器在其工作环境中会遇到的热应力的结果。事实证明，100公里的轨道比预期的要热，导致航天器的某些组件过热和故障。在Chandrayaan-1于10月发射后的几周内发现了这个问题，迫使ISRO采取了热控制措施，直到5月该机构将飞船移到更高的轨道时才达到顶峰。然而，到那时看来，已经造成了破坏，Chandrayaan-1在8月底屈服了-距本来应该进行为期两年的研究月球的任务只有九个月。

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《Space news》 |2009年第37期|18-18|共1页
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Lessons from Chandrayaan-1

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