Imaging experiment: The Viking Mars orbiter
Imaging experiment: The Viking Mars orbiter
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成像实验：维京火星轨道飞行器
DOI：
10.1016/0019-1035(72)90134-0
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发表时间：
1972
期刊：
影响因子：
3.2
通讯作者：
D. Montgomery
中科院分区：
文献类型：
--
作者：
M. Carr;W. A. Baum;G. Briggs;H. Masursky;D. W. Wise;D. Montgomery
在维京海盗号轨道器上进行成像实验的总目标是帮助选择维京海盗号着陆器的着陆点，在着陆器运行期间对选定的着陆点进行测绘和监测，帮助选择未来的着陆点，并扩大我们对这颗行星的了解。成像系统由两个相同的摄像机组成，每个摄像机连接到1026 mm T/8望远镜，提供约1°的平方视场。从1500 km的高度看，像素之间的距离约为24 m。摄像管与图像增强器耦合，图像增强器提供增加的灵敏度并允许电子快门和图像运动补偿。2.24秒的光导摄像管读出时间使图片能够以高分辨率连续拍摄。该相机与以前飞往火星的相机不同，它在一次轨道通过时提供高分辨率的连续覆盖，具有足够的灵敏度，可以在最大分辨率下使用窄带彩色滤光片，并在紫外线中有响应。这些能力将被用来补充着陆器观测，并扩展我们的知识，特别是对火星上火山、侵蚀和大气现象的了解。
The general objectives of the Imaging Experiment on the Viking Orbiter are to aid the selection of Viking Lander sites, to map and monitor the chosen sites during lander operations, to aid in the selection of future landing sites, and to extend our knowledge of the planet. The imaging system consists of two identical vidicon cameras each attached to a 1026 mm T/8 telescope giving approximately 1° square field of view. From an altitude of 1500 km the picture elements will be approximately 24m apart. The vidicon is coupled with an image intensifier which provides increased sensitivity and permits electronic shuttering and image motion compensation. A vidicon readout time of 2.24 sec enables pictures to be taken in rapid sequence for contiguous coverage at high resolution. The camera differs from those previously flown to Mars by providing contiguous coverage at high resolution on a single orbital pass, by having sufficient sensitivity to use narrow band color filters at maximum resolution, and by having response in the ultraviolet. These capabilities will be utelized to supplement lander observations and to extend our knowledge particularly of volcanic, erosional, and atmospheric phenomena on Mars.