Stardust Imaging Camera
Stardust Imaging Camera
复制标题
星尘成像相机
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Schwochert
中科院分区：
文献类型：
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作者：
R. Newburn;S. Bhaskaran;T. Duxbury;G. Fraschetti;T. Radey;M. Schwochert
[1] 星尘号航天器携带一台成像相机，主要用于 81P/Wild 2 进近导航，但该相机也将为 P/Wild 2 核表征及其活动提供有价值的数据。在工程准备测试期间，相机已经提供了有关小行星 5535 Annefrank 的有用科学数据。该相机利用卡西尼号和航行者号的备件以及一些继承的设计，提供了一个出色的、低成本的成像系统，配有 1024 × 1024 像素 CCD 探测器和焦距为 202 毫米的 f/3.5 镜头。这些可产生 3.5° × 3.5° 的视场，并且可能具有 12 角秒的分辨率。航天器滚动与可移动镜子相结合，可以实现安全的自主身体跟踪。这一能力已在 Annefrank 上得到验证，并将用于在 P/Wild 2 上获取所需数据，航天器在飞越期间受到防尘罩（惠普尔保险杠）的保护。仪器设计的细节和与其使用相关的问题构成了本文的大部分内容。
[1] The Stardust spacecraft is carrying an Imaging Camera, primarily for 81P/Wild 2 approach navigation, but the camera also will provide valuable data for P/Wild 2 nucleus characterization and about its activity. During an engineering readiness test, the camera already has provided useful scientific data about an asteroid, 5535 Annefrank. The camera utilizes spare parts from Cassini and Voyager as well as some inherited designs to provide an excellent, low-cost imaging system with a 1024 × 1024 pixel CCD detector and an f/3.5 lens with a 202 mm focal length. These yield a 3.5° × 3.5° field of view and, potentially, 12 arc second resolution. Spacecraft roll combined with a movable mirror permits safe autonomous body tracking. This capability was proven on Annefrank and will be used to acquire the desired data on P/Wild 2, with the spacecraft protected by a dust shield (a Whipple bumper) during that flyby. Details of the instrumental design and problems associated with its use make up the bulk of the paper.