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Alignment of the James Webb Space Telescope Optical Telescope Element

机译：詹姆斯·韦伯太空望远镜光学望远镜元件的对准

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The optical telescope element (OTE) of the James Webb Space Telescope has now been integrated and aligned. The OTE comprises the flight mirrors and the structure that supports them - 18 primary mirror segments, the secondary mirror, and the tertiary and fine steering mirrors (both housed in the aft optics subsystem). The primary mirror segments and the secondary mirror have actuators to actively control their positions during operations. This allows the requirements for aligning the OTE subsystems to be in the range of microns rather than nanometers. During OTE integration, the alignment of the major subsystems of the OTE structure and optics were controlled to ensure that, when the telescope is on orbit and at cryogenic temperatures, the active mirrors will be within the adjustment range of the actuators. Though the alignment of this flagship mission was complex and intricate, the key to a successful integration process turned out to be very basic: a clear, concise series of steps employing advanced planning, backup measurements, and cross checks that this multi-organizational team executed with a careful and methodical approach. This approach was not only critical to our own success but has implications for future space observatories.
机译：詹姆斯·韦伯太空望远镜的光学望远镜元件（OTE）现在已经集成并对齐。 OTE包括飞行后视镜和支撑它们的结构-18个主后视镜段，辅助后视镜以及三级和精细转向镜（均安装在后视光学子系统中）。主镜部分和副镜具有致动器，以在操作过程中主动控制其位置。这允许将OTE子系统对准的要求在微米范围内，而不是纳米范围内。在OTE集成过程中，对OTE结构和光学系统的主要子系统的对准进行了控制，以确保当望远镜在轨道上且处于低温条件下时，主动镜将处于执行器的调节范围之内。尽管此旗舰任务的安排是复杂而复杂的，但成功完成集成过程的关键却是非常基本的：清晰，简洁的一系列步骤，采用了高级计划，备用度量和对这家多组织团队执行的交叉检查采取谨慎而有条理的方法。这种方法不仅对我们自己的成功至关重要，而且对未来的太空观测站也有影响。

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