The all-sky infrared mapper Scorpio has been developed at TNO-FEL. This system operates in the 3 - 5 $mu@m and 8 - 13 $mu@m wavelength bands, and creates calibrated all-sky images in 80 seconds with a resolution of 0.8 mrad. This cloud mapper is used to obtain infrared images of the sky (mainly at 10 $mu@m) in an on-going study for statistical properties of the sky and cloud infrared radiation, i.e., infrared clutter and cloudiness. Scorpio is also useful for more general cloud and sky background studies. In this paper all-sky images are presented together with all-sky clutter maps. A method is developed to obtain these clutter maps and to derive clutter information from these clutter maps. An analysis of clutter variations with cloud height and with elevation is presented. Preliminary results show a dependence between clutter and cloud height and elevation.
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机译：全天红外映射器天蝎座在TNO-FEL开发。该系统在3 - 5 $ MU @ M和8 - 13 $ MU @ M波长频段中运行，并在80秒内创建校准的全天图像，分辨率为0.8 mrad。该云映射器用于在正在进行的天空中获得天空的红外图像（主要是10 $ MU @ M），用于天空和云红外辐射的统计特性，即红外杂波和浑浊。天蝎座对更普通的云和天空背景研究也很有用。在本文中，全天图像与全天杂乱图一起呈现。开发了一种方法以获得这些杂波映射并从这些杂波图中导出杂波信息。介绍了云高度和高度杂波变化的分析。初步结果显示了杂波和云高度和高度之间的依赖。
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