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MISI90大气密度模型在定轨中的参数输入方式探讨
Alternative TitleParameters Input of MSIS90 Thermosphere Density Model in Orbit Determination and Forecasting
刘舒莳; 龚建村; 刘四清; 李晓松; lss_880211@yahoo.com.cn
Department空间环境部
Source Publication载人航天
2012
Volume18Issue:6Pages:1-6
ISSN1674-5825
Language中文
KeywordMsis90大气模型 定轨 轨道预报
Abstract大气密度模型对以载人飞船为代表的低轨航天器精密定轨及轨道预报有很大影响。在载人航天工程中使用的大气密度模型对于地磁指数和太阳辐射流量的输入有两种方式,即输入固定值和输入分段值。利用MSIS90模型,通过天宫一号目标飞行器的轨道数据分析对比了不同参数输入方式,不同数据长度以及不同地磁指数对定轨和轨道预报的影响。结果表明,数据孤段短且地磁变化不大时,输入固定值的方式获得的轨道预报精度较高;长弧段定轨和长期轨道预报的场合下输入分段值的方式预报精度高,稳定性好,适用范围广,操作。
Other AbstractThermosphere density model plays an important role in low Earth satellites orbit determination and forecasting. There are two ways to input geomagnetic and solar radiation parameters when using thermosphere models, namely, fixed parameters input and variable parameters input. Using MSIS90 model and Tiangong-1 orbit data, the precision of orbit determination and forecasting is analyzed with different input methods of parameters, different length of data and different geomagnetic parameters. Results show that the method of fixed parameters input is better with less observation data in geomagnetic quiet condition. However, in long-term orbit forecasting with more observation data, the method of variable parameters input is more accurate and easier to operate.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/2892
Collection空间环境部
Corresponding Authorlss_880211@yahoo.com.cn
Recommended Citation
GB/T 7714
刘舒莳,龚建村,刘四清,等. MISI90大气密度模型在定轨中的参数输入方式探讨[J]. 载人航天,2012,18(6):1-6.
APA 刘舒莳,龚建村,刘四清,李晓松,&lss_880211@yahoo.com.cn.(2012).MISI90大气密度模型在定轨中的参数输入方式探讨.载人航天,18(6),1-6.
MLA 刘舒莳,et al."MISI90大气密度模型在定轨中的参数输入方式探讨".载人航天 18.6(2012):1-6.
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