Guide Star Sub catalog Method for FY 4 Meteorological Satellite

Wang Sujuan; Guo Qiang; Xu Jianmin

Vol.21, NO.2, 2010

Article Contents

Article Navigation > Journal of Applied Meteorological Science > 2010 > 21(2): 149-156

Wang Sujuan, Guo Qiang, Xu Jianmin. Guide star sub catalog method for FY 4 meteorological satellite. J Appl Meteor Sci, 2010, 21(2): 149-156.

Citation:

Wang Sujuan, Guo Qiang, Xu Jianmin. Guide star sub catalog method for FY 4 meteorological satellite. J Appl Meteor Sci, 2010, 21(2): 149-156.

Wang Sujuan, Guo Qiang, Xu Jianmin. Guide star sub catalog method for FY 4 meteorological satellite. J Appl Meteor Sci, 2010, 21(2): 149-156.

Citation:

Wang Sujuan, Guo Qiang, Xu Jianmin. Guide star sub catalog method for FY 4 meteorological satellite. J Appl Meteor Sci, 2010, 21(2): 149-156.

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Guide Star Sub catalog Method for FY 4 Meteorological Satellite

1.
Chinese Academy of Meteorological Sciences, Beijing 100081
2.
Graduate University of Chinese Academy of Sciences, Beijing 100049
3.
National Satellite Meteorological Center, Beijing 100081

Received Date: 2009-02-16
Rev Recd Date: 2010-01-28
Publish Date: 2010-04-30

Abstract

Abstract

A method of selecting guide star for star tracker of FY 4 meteorological satellite is proposed. This method is based on the J1991.25 Hipparcos catalog and Pulkovo Compilation of Radial Velocities for Hipparcos Stars, through the rigorous treatment of epoch transformation, the star's position of the FY 4 runtime epoch can be determined. In order to search more accurate guide star, the stars whose magnitudes are brighter than 6.5 of J1991.25 Hipparcos catalog are chosen, and the J2000.0 Hipparcos sub catalog is got after the rigorous epoch transformation. With the help of Tycho 2 star catalog and SAO star catalog at the same epoch, the threshold of position precision is introduced, which can meet the precision of attitude determination in arc second level. The additional guide star (with star flag 5) is brought into use for improving the accuracy and speed of star identification. After the cases analysis of unsuccessful star identification, the guide star which always cause false star identification is given a star flag(such as 6), which denotes that the star is a redundant guide star and can't take part in the star identification processing. Through the introduction of redundant guide star the accuracy of star identification is improved. The 189 additional guide stars distribute all over the whole sky, even the star sparse area. And 34.4% of them are of a magnitude brighter than 3, which can improve star identification. Inaccurate reference guide star causes attitude error inevitably. Comparing with the guide star position of catalog epoch, using the guide star position of FY 4 runtime epoch through rigorous epoch transformation under the limit of the threshold of position precision is a good method to improve the precision of attitude determination.
- guide star;
- star catalog;
- epoch transformation;
- star identification;
- attitude determination

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References(16)

Figures and Tables

图 1 导航星分布示意图

Fig. 1 Theguidestarmap

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图 2 导航星分布直方图

Fig. 2 The histogram of guide star distribution

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图 3 不同视场条件下的天区覆盖度比较

Fig. 3 Sky cover statistics of different FOV

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图 4 不同星等条件下的天区覆盖度比较

Fig. 4 Sky cover statistics of different magnitude

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图 5 可见光通道CCD星敏感器可测到的导航星及辅助导航星

Fig. 5 The guide star and additional guide star be able to observed by VIS channel CCD

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表 1 不同星等和视场大于3颗导航星的FOV统计表 (无辅助导航星)

Table 1 Statistics of different magnitude and FOV (excluding additional guide star)

表 2 不同星等和视场大于3颗导航星的FOV统计表 (含辅助导航星)

Table 2 Statistics of different magnitude and FOV (including additional guide star)

表 3 导航星与辅助导航星位置变化分布

References

[1]	Lu Feng,Menzel W Paul,Christopher S Velden,At-tempts to Improve GOES Image Navigation,2006.
[2]	陆风,许健民,张其松,风云二号气象卫星姿态和沿步进方向失配角参数对图像影响的模拟研究,应用气象学报,2001,12(4):393-399. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20010454&flag=1
[3]	陆风,基于几何分析的静止卫星云顶高度定量反演研究,北京:北京大学,2008.
[4]	Lu Feng,Zhang Xiaohu,Xu Jianmin,Image navigation for the FY2 geosynchronous meteorological satellite,J Atmos O-cean Technol,2008,25:1149-1165. doi: 10.1175/2007JTECHA964.1
[5]	郑胜,吴伟仁,田金文,一种新导航星选取算法研究,宇航学报,2004,25(1):35-40. http://www.cnki.com.cn/Article/CJFDTOTAL-YHXB200401006.htm
[6]	刘朝山,马瑞萍,肖称贵,星图匹配制导中的关键技术,宇航学报,2006,27(1):31-35. http://www.cnki.com.cn/Article/CJFDTOTAL-YHXB200601007.htm
[7]	Airey S P.Bagnasco G.Barilli M Extreme Accuracy Star Tracker in Support of HYPER Precision Cold Atom In-terferometry[AAS 03-505] 2003.http://sci2.esa.int/hy-per/docs/gnc_2003_east.pdf.
[8]	陈元枝,郝胜国,王国辉,适用于星敏感的器的导航星星库制定,光学精密工程,2000,8(4):331-334. http://www.cnki.com.cn/Article/CJFDTOTAL-GXJM200004006.htm
[9]	Hg E.Fabricius C.Makarov V V Guide to the Ty-cho-2 Catalogue 2000.http://www.astro.ku.dk/cf/CD/docs/guide.pdf.
[10]	Nancy G Roman,Wayne H Warren Jr,Smithsonian Astrophysical Observatory Star Catalog (SAO)[NSSDC/WDC-A-R&S89-08],1989.
[11]	Allan Read Eisenman,Carl Christian Liebe,The Advancing State-of-the-art in Second Generation Star Trackers,1998,1:111-118.
[12]	王素娟,郭强,许键民,适用于地面应用系统的导航星数据库的建立,宇航学报,2009,30(1):387-393. http://www.cnki.com.cn/Article/CJFDTOTAL-YHXB200901069.htm
[13]	胡中为,普通天文学,南京:南京大学出版社,2003.
[14]	Gontcharov G A Pulkovo Compilation of Radial Velocities for 35493 Hipparcos Stars in a Common System.http://da-ta.bao.ac.cn/viz-bin/Cat?/252.
[15]	李晓坤,王淦泉,陈桂林,风云四号气象卫星扫描成像仪--可见光通道星敏感,科学技术与工程,2007,7(6):993-996. http://www.cnki.com.cn/Article/CJFDTOTAL-KXJS200706011.htm
[16]	李晓坤,陈桂林,地球静止轨道三轴稳定气象卫星辐射计--可见光通道CCD星敏感,科学技术与工程,2007,7(19):4897-4899. http://www.cnki.com.cn/Article/CJFDTOTAL-KXJS200719022.htm