结合珞珈一号卫星轨道数据，分析地球自转参数（ERP）预报误差对低轨卫星精密轨道预报的影响。结果表明，ERP预报误差主要对轨道切向和法向产生影响，对径向影响较小。当预报时间为10 d时，切向误差可达到dm级，这对cm级定位会产生较大影响。"/>
The impact of ERP prediction error on LEO autonomous orbit determination is analyzed with the orbit data from Luojia-1A satellite. The test results indicate that ERP have a significant impact on the tangent and normal direction, with less impact on the radical direction. With 10-days prediction, the impact on the tangent direction reaches a decimeter level, which will have a major impact on the precise orbit determination."/>
The Impact of ERP Prediction Error on LEO Precise Orbit Prediction
Abstract The impact of ERP prediction error on LEO autonomous orbit determination is analyzed with the orbit data from Luojia-1A satellite. The test results indicate that ERP have a significant impact on the tangent and normal direction, with less impact on the radical direction. With 10-days prediction, the impact on the tangent direction reaches a decimeter level, which will have a major impact on the precise orbit determination.
