Taiji-1 is China’s first in-orbit technology validating satellite related to spaceborne gravitational wave (GW) detection. The satellite was launched at 600km sun synchronized orbit on 31 August 2019. It has accomplished its mission goals while all subsystems have validated their key technologies in orbit. The subsystems include optical metrology system (OMS), drag-free attitude control system (DFACS), thermal control subsystem, high-quality microgravity satellite platform and so on. This paper presents system architecture of Taiji-1 analyzing in-orbit experimental results of thermal stability, reaction wheel vibration contributing to the noise of gravitational reference sensor (GRS) measurement noise, and the center-of-mass (CoM) of GRS calibration.

中文翻译：

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太极一号卫星结构及初步在轨实验

太极一号是我国第一颗星载引力波（GW）探测相关在轨技术验证卫星。该卫星于 2019 年 8 月 31 日在 600 公里太阳同步轨道上发射。它完成了任务目标，同时所有子系统都在轨验证了其关键技术。子系统包括光学计量系统（OMS）、无阻力姿态控制系统（DFACS）、热控子系统、优质微重力卫星平台等。本文介绍了太极一号的系统架构，分析了热稳定性、反作用轮振动对重力参考传感器（GRS）测量噪声的影响以及GRS校准的质心（CoM）的在轨实验结果。