Optics and Precision Engineering, Volume. 32, Issue 13, 2103(2024)
Initial orbit determination in range search based on dynamic thresholds
Figures & Tables(12)
Fig. 2. Initial orbit calculation process based on dynamic threshold
Fig. 4. Errors distribution of observation arc length and initial orbit semi-major axis of LEO objects
Table 1. Basic information of LEO object （from n2yo.com）
View tableView in ArticleTable 1. Basic information of LEO object （from n2yo.com）
NORAD ID 卫星名称 近/远地点轨道高度/km 倾角/（°） 56703 STARLINK-30132 565.4/567.0 43.0 43437 SENTINEL3B 809.3/810.3 98.6 48621 HAIYANG 2D 953.6/964.6 66.0 48245 ONEWEB-0217 1211.9/1214.0 87.9 41240 JASON3 1338.9/1350.8 66.0 46984 SENTINEL-6 1338.8/1351.0 66.0
Table 2. IOD errors of LEO objects
View tableView in ArticleTable 2. IOD errors of LEO objects
NORAD ID 数量 弧长/s a误差/m e误差 i误差/（°） RAAN误差/（°） 46984 1 144 -6 414.4 0.003 33 -0.059 0.387 56703 1 46 -25 415.8 0.002 91 0.035 -0.701 43437 8 69 9 291.5 0.001 39 0.071 0.058 41240 16 97 9 220.3 0.002 27 -0.035 0.046 48621 7 89 2 822.3 0.002 21 0.063 0.040 48245 1 62 -1 513.2 0.001 63 0.162 -0.020 平均值 84.5 9 112.9 0.002 29 0.071 0.209
Table 3. Information of MEO objects
View tableView in ArticleTable 3. Information of MEO objects
NORAD ID 卫星名称 近/远地点轨道高度/km 倾角/（°） 周期/min 28115 BREEZE-M R/B 18 959/19 310 63.7 675.7 28509 COSMOS 2411 19 124/19 149 63.6 675.7 36111 COSMOS 2456 （GLONASS） 19 132/19 142 64.5 675.7
Table 4. IOD errors of MEO objects
View tableView in ArticleTable 4. IOD errors of MEO objects
NORAD ID 观测值个数 a误差/m e误差 i误差/（°） RAAN误差/（°） 28115 44 23 709 -0.007 00 -0.076 00 -0.016 00 28509 58 1 593 -0.000 33 0.039 00 0.017 00 36111 73 9 859 -0.000 42 -0.018 00 -0.014 00 平均 58 11 710 -0.002 58 -0.018 33 -0.004 33
Table 5. IOD errors of semi-major axis of GEO objects
View tableView in ArticleTable 5. IOD errors of semi-major axis of GEO objects
误差区间 比例/% <100 km 92.74 <50 km 82.31 <30 km 66.43
Table 6. Success rates and errors of initial trajectory calculations at different orbital altitudes
View tableView in ArticleTable 6. Success rates and errors of initial trajectory calculations at different orbital altitudes
轨道 弧长/s 占比/% a误差/km 相对误差/% 成功率/% LEO 85 1.4 9.1 0.12 94 MEO 174 0.43 11.7 0.05 75 GEO 77 0.09 50.2 0.012 89
Table 7. IOD results of space objects observed by the ground-based data
View tableView in ArticleTable 7. IOD results of space objects observed by the ground-based data
方 法 弧长/s 成功率/% 半长轴误差/km Gauss 30~60 94.40 600 10~30 52.50 1 800 Laplace 30~60 27.60 260 10~30 8.60 250 Gooding 30~60 81.20 285 10~30 33.10 265 Double R 10~30 9.22 1 100 30~60 69.16 500 距离搜索法 10~30 72.10 50 30~60 87.86 25
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Xiangxu LEI, Zhendi LAO, Dongya WANG, Kunpeng WANG, Junyu CHEN, You ZHAO, Yaya LI. Initial orbit determination in range search based on dynamic thresholds[J]. Optics and Precision Engineering, 2024, 32(13): 2103
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Received: Mar. 24, 2024
Accepted: --
Published Online: Aug. 28, 2024
The Author Email: CHEN Junyu (jychen@kust.edu.cn)
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