Author:
Bai Xianyong,Tian Hui,Deng Yuanyong,Wang Zhanshan,Yang Jianfeng,Zhang Xiaofeng,Zhang Yonghe,Qi Runze,Wang Nange,Gao Yang,Yu Jun,He Chunling,Shen Zhengxiang,Shen Lun,Guo Song,Hou Zhenyong,Ji Kaifan,Bi Xingzi,Duan Wei,Yang Xiao,Lin Jiaben,Hu Ziyao,Song Qian,Yang Zihao,Chen Yajie,Qiao Weidong,Ge Wei,Li Fu,Jin Lei,He Jiawei,Chen Xiaobo,Zhu Xiaocheng,He Junwang,Shi Qi,Liu Liu,Li Jinsong,Xu Dongxiao,Liu Rui,Li Taijie,Feng Zhenggong,Wang Yamin,Fan Chengcheng,Liu Shuo,Guo Sifan,Sun Zheng,Wu Yuchuan,Li Haiyu,Yang Qi,Ye Yuyang,Gu Weichen,Wu Jiali,Zhang Zhe,Yu Yue,Ye Zeyi,Sheng Pengfeng,Wang Yifan,Li Wenbin,Huang Qiushi,Zhang Zhong
Abstract
Abstract
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 ∼ 41.′6 × 41.′6 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 about 16 hr each day because the earth eclipse time accounts for about 1/3 of SATech-01's orbit period. Approximately 15 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.
Subject
Space and Planetary Science,Astronomy and Astrophysics
Cited by
12 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献