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

被引：50

作者：

Bai, Xianyong ^{[1
,2
]}

Tian, Hui ^{[1
,3
,4
]}

Deng, Yuanyong ^{[1
,2
]}

Wang, Zhanshan ^{[5
]}

Yang, Jianfeng ^{[6
]}

Zhang, Xiaofeng ^{[7
]}

Zhang, Yonghe ^{[7
]}

Qi, Runze ^{[5
]}

Wang, Nange ^{[6
]}

Gao, Yang ^{[7
]}

Yu, Jun ^{[5
]}

He, Chunling ^{[5
]}

Shen, Zhengxiang ^{[5
]}

Shen, Lun ^{[6
]}

Guo, Song ^{[6
]}

Hou, Zhenyong ^{[3
]}

Ji, Kaifan ^{[8
]}

Bi, Xingzi ^{[7
]}

Duan, Wei ^{[1
]}

Yang, Xiao ^{[1
]}

Lin, Jiaben ^{[1
]}

Hu, Ziyao ^{[1
]}

Song, Qian ^{[1
,2
]}

Yang, Zihao ^{[3
]}

Chen, Yajie ^{[3
]}

Qiao, Weidong ^{[6
]}

Ge, Wei ^{[6
]}

Li, Fu ^{[6
]}

Jin, Lei ^{[6
]}

He, Jiawei ^{[6
]}

Chen, Xiaobo ^{[6
]}

Zhu, Xiaocheng ^{[7
]}

He, Junwang ^{[7
]}

Shi, Qi ^{[7
]}

Liu, Liu ^{[7
]}

Li, Jinsong ^{[7
]}

Xu, Dongxiao ^{[7
]}

Liu, Rui ^{[7
]}

Li, Taijie ^{[7
]}

Feng, Zhenggong ^{[7
]}

Wang, Yamin ^{[7
]}

Fan, Chengcheng ^{[7
]}

Liu, Shuo ^{[7
]}

Guo, Sifan ^{[1
,2
]}

Sun, Zheng ^{[3
]}

Wu, Yuchuan ^{[1
,2
]}

Li, Haiyu ^{[3
]}

Yang, Qi ^{[2
,3
]}

Ye, Yuyang ^{[1
,2
]}

Gu, Weichen ^{[5
]}

机构：

[1] Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China

[2] Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China

[3] Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China

[4] Chinese Acad Sci, Natl Space Sci Ctr, Key Lab Solar Act & Space Weather, Beijing 100190, Peoples R China

[5] Tongji Univ, Inst Precis Opt Engn, Sch Phys Sci & Engn, Key Lab Adv Microstruct Mat MOE, Shanghai, Peoples R China

[6] Chinese Acad Sci, Xian Inst Opt & Precis Mech, Xian 710119, Peoples R China

[7] Chinese Acad Sci, Innovat Acad Microsatellites, Shanghai 201304, Peoples R China

[8] Chinese Acad Sci, Yunnan Observ, Kunming 650011, Peoples R China

来源：

RESEARCH IN ASTRONOMY AND ASTROPHYSICS | 2023年 / 23卷 / 06期

基金：

中国国家自然科学基金;

关键词：

Sun: transition region; Sun: UV radiation; Sun: activity; space vehicles: instruments; DIFFERENTIAL EMISSION MEASURE; RESOLUTION-CORONAL-IMAGER; EUV IMAGING SPECTROMETER; MAGNETIC RECONNECTION; X-RAY; ATOMIC DATABASE; QUIET SUN; PART I; ASO-S; TELESCOPE;

D O I：

10.1088/1674-4527/accc74

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

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 & SIM;500 km in 2022 July, aims to test the on-orbit performance of our newly developed Sc/Si multi-layer reflecting mirror and the 2kx2k 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 & SIM;3 nm. SUTRI employs a Ritchey-Chretien optical system with an aperture of 18 cm. The on-orbit observations show that SUTRI images have a field of view of & SIM; 41.& PRIME;6 x 41.& PRIME;6 and a moderate spatial resolution of & SIM;8 & DPRIME; 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 & SIM;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.

引用

页数：19

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