The Chinese H{\alpha} Solar Explorer (CHASE) mission: An overview
Abstract
The Chinese H{\alpha} Solar Explorer (CHASE), dubbed "Xihe" - Goddess of the Sun, was launched on October 14, 2021 as the first solar space mission of China National Space Administration (CNSA). The CHASE mission is designed to test a newly developed satellite platform and to acquire the spectroscopic observations in the H{\alpha} waveband. The H{\alpha} Imaging Spectrograph (HIS) is the scientific payload of the CHASE satellite. It consists of two observational modes: raster scanning mode and continuum imaging mode. The raster scanning mode obtains full-Sun or region-of-interest spectral images from 6559.7 to 6565.9 {\AA} and from 6567.8 to 6570.6 {\AA} with 0.024 {\AA} pixel spectral resolution and 1 minute temporal resolution. The continuum imaging mode obtains photospheric images in continuum around 6689 {\AA} with the full width at half maximum of 13.4 {\AA}. The CHASE mission will advance our understanding of the dynamics of solar activity in the photosphere and chromosphere. In this paper, we present an overview of the CHASE mission including the scientific objectives, HIS instrument overview, data calibration flow, and first results of on-orbit observations.
Cite
@article{arxiv.2205.05962,
title = {The Chinese H{\alpha} Solar Explorer (CHASE) mission: An overview},
author = {Chuan Li and Cheng Fang and Zhen Li and MingDe Ding and PengFei Chen and Ye Qiu and Wei You and Yuan Yuan and MinJie An and HongJiang Tao and XianSheng Li and Zhe Chen and Qiang Liu and Gui Mei and Liang Yang and Wei Zhang and WeiQiang Cheng and JianXin Chen and ChangYa Chen and Qiang Gu and QingLong Huang and MingXing Liu and ChengShan Han and HongWei Xin and ChangZheng Chen and YiWei Ni and WenBo Wang and ShiHao Rao and HaiTang Li and Xi Lu and Wei Wang and Jun Lin and YiXian Jiang and LingJie Meng and Jian Zhao},
journal= {arXiv preprint arXiv:2205.05962},
year = {2022}
}
Comments
9 pages, 6 figures