The Solar Upper Transition Region Imager(SUTRI)Onboard the SATech-01 Satellite  

作　　者：Xianyong Bai Hui Tian Yuanyong Deng Zhanshan Wang Jianfeng Yang Xiaofeng Zhang Yonghe Zhang Runze Qi Nange Wang Yang Gao Jun Yu Chunling He Zhengxiang Shen Lun Shen Song Guo Zhenyong Hou Kaifan Ji Xingzi Bi Wei Duan Xiao Yang Jiaben Lin Ziyao Hu Qian Song Zihao Yang Yajie Chen Weidong Qiao Wei Ge Fu Li Lei Jin Jiawei He Xiaobo Chen Xiaocheng Zhu Junwang He Qi Shi Liu Liu Jinsong Li Dongxiao Xu Rui Liu Taijie Li Zhenggong Feng Yamin Wang Chengcheng Fan Shuo Liu Sifan Guo Zheng Sun Yuchuan Wu Haiyu Li Qi Yang Yuyang Ye Weichen Gu Jiali Wu Zhe Zhang Yue Yu Zeyi Ye Pengfeng Sheng Yifan Wang Wenbin Li Qiushi Huang Zhong Zhang 

机构地区：[1]National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [2]School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing 101408,China [3]School of Earth and Space Sciences,Peking University,Beijing 100871,China [4]Key Laboratory of Solar Activity and Space Weather,National Space Science Center,Chinese Academy of Sciences,Beijing 100190,China [5]Tongji University,Institute of Precision Optical Engineering,School of Physics Science and Engineering,Key Laboratory of Advanced Micro-Structured Materials MOE,Shanghai,China [6]Xi'an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi'an 710119,China [7]Innovation Academy for Microsatellites,Chinese Academy of Sciences,Shanghai 201304,China [8]Yunnan Observatories,Chinese Academy of Sciences,Kunming,650011,China

出　　处：《Research in Astronomy and Astrophysics》2023年第6期153-171,共19页天文和天体物理学研究(英文版)

基　　金：supported by the National Natural Science Foundation of China(NSFC)under Grants 11825301,12003016,12073077;the National Key R&D Program of China No.2021YFA0718600;the Strategic Priority Research Program of the Chinese Academy of Sciences with the Grant No.XDA15018400;the Youth Innovation Promotion Association of CAS(2023061)。

摘　　要：The Solar Upper Transition Region Imager(SUTRI)onboard the Space Advanced Technology demonstration satellite(SATech-01),which was launched to a Sun-synchronous orbit at a height of~500 km in 2022 July,aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2k×2k EUV CMOS imaging camera and to take full-disk solar images at the Ne VII 46.5 nm spectral line with a filter width of~3 nm.SUTRI employs a Ritchey-Chrétien optical system with an aperture of 18 cm.The on-orbit observations show that SUTRI images have a field of view of~416×416 and a moderate spatial resolution of~8″without an image stabilization system.The normal cadence of SUTRI images is 30 s and the solar observation time is about16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period.Approximately15 GB data is acquired each day and made available online after processing.SUTRI images are valuable as the Ne VII 46.5 nm line is formed at a temperature regime of~0.5 MK in the solar atmosphere,which has rarely been sampled by existing solar imagers.SUTRI observations will establish connections between structures in the lower solar atmosphere and corona,and advance our understanding of various types of solar activity such as flares,filament eruptions,coronal jets and coronal mass ejections.

关 键 词：Sun:transition region Sun:UV radiation Sun:activity space vehicles:instruments 

分 类 号：P182.2[天文地球—天文学]