QX06 satellite laser terminal in orbit 2024 in orbit chain building pointing error dataset

This data aims to analyze the pointing error during the in orbit chain building process of QX06 satellite, in order to facilitate subsequent optimization. The data is sourced from the chain building process of QX06 and QX05 on the same orbital plane between May 2 and May 8, 2024, as well as the chain building process of QX06 and QX03 on the opposite orbital plane between November 5 and November 9, 2024. The data is transmitted to the ground through wide beam transmission via on-board engineering data. The raw data is processed using Excel to remove outliers and missing values, which are either lost or erroneous during the up and down transmission of the data. The dataset is divided into date, chain building status, and pointing error according to table columns, with a sampling rate of 1 second per time for date information; Chain building status: 0 indicates scanning/staring process, 1 indicates coarse tracking, 2 indicates successful chain building; The pointing error is obtained by processing the theoretical and actual positions of the terminal azimuth and elevation motors, in mrad units.

本数据集旨在分析QX06卫星在轨建链过程中的指向误差，为后续优化工作提供支撑。数据集采集自两个阶段的卫星建链过程：2024年5月2日至5月8日同一轨道面上QX06与QX05的建链数据，以及2024年11月5日至11月9日异轨道面上QX06与QX03的建链数据。原始数据通过星载工程数据的宽波束传输链路下行至地面。针对数据上下行传输过程中出现的丢失、异常等问题，研究人员使用Excel对原始数据进行预处理，剔除异常值与缺失值。数据集按列划分为日期、建链状态与指向误差三类字段，其中日期信息的采样频率为每秒1次。建链状态字段的取值定义为：0代表扫描/凝视阶段，1代表粗跟踪阶段，2代表建链成功。指向误差通过终端方位与俯仰电机的理论位置与实际位置计算得到，单位为毫弧度（mrad）。