WANG Youcun, GUO Jinyun, XIA Yaowei, KONG Qiaoli. Accuracy Analysis of LEO Satellite Orbit Prediction Based on Dynamic Fitting Method[J]. GNSS World of China, 2018, 43(4): 59-66. DOI: 10.13442/j.gnss.1008-9268.2018.04.011
Citation: WANG Youcun, GUO Jinyun, XIA Yaowei, KONG Qiaoli. Accuracy Analysis of LEO Satellite Orbit Prediction Based on Dynamic Fitting Method[J]. GNSS World of China, 2018, 43(4): 59-66. DOI: 10.13442/j.gnss.1008-9268.2018.04.011

Accuracy Analysis of LEO Satellite Orbit Prediction Based on Dynamic Fitting Method

  • The orbit prediction plays a significant role in the scientific mission of remote sensing satellite. To obtain the longperiod and highprecision orbit prediction, the orbit forecast is performed by a dynamic fitting method. To analyze the effect of orbital height and different fitting arc lengths on the accuracy of orbit forecast, the data of the GRACEA satellite,HYA satellite, Jason2 satellite are used as examples. From the results, it is concluded that the prediction orbit of 3D RMS of 4 h and 8 h arc length of GRACEA satellites,the results are better than 3 m and 10 m respectively; for HY2A and Jason2 the 4 h arc length prediction results are less than 2 dm and 1 dm separately, 24 h arc length prediction results are better than 2.5 m and 2 m respectively.
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