NSSC OpenIR  > 空间环境部
Alternative TitleAtmospheric Density Calibration Using the Real-time Satellite Observation
苗娟; 刘四清; 李志涛; 秦国泰; 唐歌实; mj@earth.sept.ac.cn
Source Publication空间科学学报
Keyword神舟探测 大气密度 模式修正
Other AbstractFor low Earth satellites,thermospheric density models are widely used in orbit determination and prediction.However,typical models often show density errors of 15%~30%under normal condition and the errors may be much greater during unusually solar and geomagnetic period.Density errors can be translated into orbit errors and effect mission plan,re-entry operations and precise orbit determination.In this paper,on the basis of detected data of Shenzhou,a kind of model calibration is expected to be developed on real-time detected data.By analyzing and comparing the character of density error for the national atmosphere model NRLMSISE-00,a kind of average calibration method is developed for relative quiet geomagnetic field(Ap≤30).During the quiet geomagnetic field,the errors of model at the same local time and latitude are considered approximately identical,so the error may be substituted by average error at the same station.The results of model are tested based on Shenzhou 4 data by two means and both are improved in accuracy.The errors of 20%decreased to 6%by real-time error calibration.The errors of one day in advance decreased to 7.8%,two days in advance decreased to 9.4%and three days in advance decreased to 10.5%.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:10[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Authormj@earth.sept.ac.cn
Recommended Citation
GB/T 7714
苗娟,刘四清,李志涛,等. 基于实时观测数据的大气密度模式修正[J]. 空间科学学报,2011,31(4):459-466.
APA 苗娟,刘四清,李志涛,秦国泰,唐歌实,&mj@earth.sept.ac.cn.(2011).基于实时观测数据的大气密度模式修正.空间科学学报,31(4),459-466.
MLA 苗娟,et al."基于实时观测数据的大气密度模式修正".空间科学学报 31.4(2011):459-466.
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