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首页> 外文期刊>Advances in space research >Orbit determination of CE-4's relay satellite in Earth-Moon L2 libration point orbit
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Orbit determination of CE-4's relay satellite in Earth-Moon L2 libration point orbit

机译：轨道测定地球月球L2拉动点轨道中CE-4的继电器卫星

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The Magpie Bridge mission is a part of the Chang'E-4 mission, it is the first Chinese spacecraft carries out Earth-Moon communication mission at Earth-Moon libration points. The Magpie Bridge operations team utilizes the Beijing Aerospace Control Center (BACC) Orbit Determination and Analysis Software (BODAS) to obtain the orbit, the measurements include range, Doppler and relay, relay-rate from China Deep Space Network (CDSN) and Very Long Baseline Interferometry (VLBI) system respectively. In order to effectively improve the accuracy of the orbit, we provided the solar radiation model with multiple characteristic surfaces. The new model is based on the structure and the real-time attitude of the satellite to solve the real-time solar pressure equivalent area. Compared with the cannon-ball model, it can calculate the solar pressure equivalent area of the satellite more accurately in orbit determination. By the analysis of the tracking measurement data, we found that the new solar radiation pressure model reduces the error of position and velocity compared to the cannon-ball model. (C) 2019 COSPAR. Published by Elsevier Ltd. All rights reserved.
机译：Magpie Bridge Mission是嫦娥四方任务的一部分，它是第一批中国航天器在地球稳定点的地球通信使命。 Magpie Bridge Operations团队利用北京航天控制中心（BACC）轨道测定和分析软件（BODA）来获得轨道，测量包括范围，多普勒和继电器，来自中国深空网（CDSN）和很长的中继率基线干涉测量分别（VLBI）系统。为了有效提高轨道的准确性，我们提供了具有多个特征表面的太阳辐射模型。新模型基于卫星的结构和实时态度来解决实时太阳能压力等效区域。与炮弹模型相比，它可以在轨道测定中更准确地计算卫星的太阳能量等效区域。通过分析跟踪测量数据，我们发现新的太阳辐射压力模型与炮弹模型相比减少了位置和速度的误差。 （c）2019 Cospar。 elsevier有限公司出版。保留所有权利。

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