Spin Axis Determination of Defunct GLONASS Satellites Using Photometry Observation

IF 0.6 Q4 ASTRONOMY & ASTROPHYSICS

Journal of Astronomy and Space Sciences Pub Date : 2021-03-01 DOI:10.5140/JASS.2021.38.1.45

Jee-Ho Lee, E. Park, Mansoo Choi, D. Kucharski, Y. Yi, J. Park

引用次数: 0

Abstract

GLONASS, a satellite navigation system developed in Russia since 1976, is defunct and orbits in an unstable attitude. The satellites in these problems are not managed and there is no precise information, which can increase the risk of collisions with other space objects. In this study, detailed attitude dynamic have to be analyzed through photometry data, which requires spin period and spin axis. The light curve data is obtained by observing through the photometer at the Graz station and the power spectrum is calculated to obtain the cycle of the satellite. The geometric relationship between observer and sun is analyzed for GLONASS-50 satellite. The box-wing model is applied to obtain the phase reflection of the satellite and obtain the Irradiation of the satellite through this information. In Light Curve and Irradiation, the spin axis is calculated for each peak points with the distance square minimum technique. The spin axis of the GLONASS-50 satellite is RA = 116°, Dec = 92°.

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用光度法测定失效GLONASS卫星的自转轴

格洛纳斯卫星导航系统(GLONASS)是俄罗斯从1976年开始开发的卫星导航系统，现在已经失效，轨道运行的姿态不稳定。这些问题中的卫星没有得到管理，也没有精确的信息，这可能增加与其他空间物体碰撞的风险。在本研究中，需要通过光度数据分析详细的姿态动态，这需要自旋周期和自旋轴。通过格拉茨站的光度计观测得到光曲线数据，计算功率谱得到卫星的周期。分析了GLONASS-50卫星观测者与太阳的几何关系。采用箱翼模型获取卫星的相位反射，并通过该信息获得卫星的辐照度。在《光曲线与辐照》中，采用距离平方最小法计算各峰点的自转轴。GLONASS-50卫星的自转轴为RA = 116°，Dec = 92°。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Astronomy and Space Sciences ASTRONOMY & ASTROPHYSICS-

CiteScore

1.30

自引率

20.00%

发文量

审稿时长

12 weeks

期刊介绍： JASS aims for the promotion of global awareness and understanding of space science and related applications. Unlike other journals that focus either on space science or on space technologies, it intends to bridge the two communities of space science and technologies, by providing opportunities to exchange ideas and viewpoints in a single journal. Topics suitable for publication in JASS include researches in the following fields: space astronomy, solar physics, magnetospheric and ionospheric physics, cosmic ray, space weather, and planetary sciences; space instrumentation, satellite dynamics, geodesy, spacecraft control, and spacecraft navigation. However, the topics covered by JASS are not restricted to those mentioned above as the journal also encourages submission of research results in all other branches related to space science and technologies. Even though JASS was established on the heritage and achievements of the Korean space science community, it is now open to the worldwide community, while maintaining a high standard as a leading international journal. Hence, it solicits papers from the international community with a vision of global collaboration in the fields of space science and technologies.