Data Preprocessing and On-Orbit Quality Analysis of the Multi-azimuth UV Imager of Tiangong-2

摘要

The Multi-Azimuth UV Imager (MAVI) is a new generation atmospheric sounder carried on Tiangong-2 Space Laboratory. It can obtain the vertical distribution information of the ultraviolet radiation of the global middle and upper atmosphere, and also can detect the ultraviolet radiation of the entire atmosphere in the range of ±5° from the subastral point at the same time. The design of the instrument is unique in the world. So it is different from the traditional optical remote sensing instrument in data processing and quality analysis. In this paper, the data characteristics and data preprocessing flow of MAVI are introduced, and the data quality on-orbit of MAVI is preliminarily analyzed by using several data quality evaluation indexes. The results show that the imaging performance of MAVI is stable and the data quality is reliable. The data products of MAVI can provide effective support for atmospheric scientific research and atmospheric environment monitoring.