This paper proposes a nonlinear model for guidance instrument systematic error separation based on tracking trajectory data.

基于惯性制导工具误差模型，推导出存在工具误差时的再入点运动参数模型。

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First, it is very important for high accurate trajectory data to judge and analyze the guide system, dynamic system and other systems.

高精度的弹道数据一方面对于鉴定和分析运载火箭的制导系统、动力系统以及其他分系统都是极为重要的。

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After estimation of the after-effect time using tracking measurement trajectory data, a method is proposed to analyze after-effect error.

本文提出了一种利用外测弹道数据特性判断后效段时间，进行后效误差分析的方法。

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The system then uses the trajectory data to determine exactly where the ball has hit the ground, making it invaluable for marginal line calls.

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Since then, key indicators like employment, manufacturing data and consumer sentiment have continued on a downward trajectory.

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Steve Shafer, chief investment officer at Covenant Global Investors, counts both JPMorgan and Wells Fargo among his holdings, but says he is less concerned about short-term data points like a single quarter of earnings than he is with sound management and a positive earnings trajectory over a longer period.

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