Advanced Space-borne Solar Observatory (ASO-S)
中国航天科技集团 (CASC) · 长征二号丁 (CZ-2D) · 94 号发射场地 (SLS-2 / 603)
任务简介
ASO-S（先进天基太阳天文台）是中国首个太阳空间天文台，旨在研究太阳磁场、太阳耀斑和日冕物质抛射之间的相互作用。 ASO-S 是一颗三轴稳定卫星，质量小于 1000 千克，指向精度为 0.01°，每 20 秒的姿态稳定性为 1 到 2 角秒。有效载荷质量低于 335 千克，功耗约 300 瓦。平台指向精度优于 0.01°，测量精度优于 1 角秒，姿态漂移低于 0.0004°/秒。 ASO-S 搭载三台仪器： - 全日面矢量磁像仪（FMG）用于绘制整个太阳盘面光球层的磁场图。它包括成像仪、光学偏振系统和 CCD 探测器。 - 硬 X 射线成像仪（HXI）相机用于对全日面进行 X 射线成像。该仪器针对太阳耀斑成像进行了优化。 - 三台 LST（莱曼阿尔法太阳望远镜）望远镜用于观测太阳耀斑的莱曼阿尔法线（121.6 纳米），观测距离从太阳盘面到几个太阳半径。这三台望远镜分别是 SDI（获取太阳盘面图像）、SCI（日冕仪，用于观测 1.1 到 2.5 太阳半径范围）和 WST（太阳盘面发出的白光，用于校准）。
原文
ASO-S (Advanced Space-borne Solar Observatory) is a Chinese solar space observatory that aims to study the interaction between the Sun's magnetic field, solar flares and coronal mass ejections. It's the first space solar observatory of China. ASO-S is a 3-axis stabilized satellite with a mass of less than 1,000 kg with a pointing accuracy of 0.01° and an orientation stability of 1 to 2 arc seconds every 20 seconds. The payload has a mass below 335 kg and consumes about 300 watts. The platform's pointing accuracy is lower than 0.01°, the measurement accuracy is lower than 1 arc second and the orientation drift is below 0.0004°/s. ASO-S has three instruments: - The Full-Disc Vector Magnetograph (FMG) instrument is intended to map the magnetic field of the photosphere over the entire solar disk. It includes an imager, an optical polarization system and a CCD detector. - The Hard X-ray Imager (HXI) camera should image the whole solar disk in X-rays. The instrument is optimized to take images of solar flares. - A set of three LST (Lyman-alpha Solar Telescope) telescopes is used to observe the Lyman-alpha line (121.6 nm) of solar flares up to a distance of several solar radii from the Sun's disk. These three telescopes are SDI (to obtain an image of the solar disk), SCI (coronagraph for observation between 1.1 and 2.5 solar radii) and WST (white light emitted by the solar disk used for calibration purposes).
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