Abstract The present study demonstrates that measurement errors may significantly change meteor nominal orbital parameters and may create spurious meteoroid orbits, which can lead to a distortion of the true meteoroid populations. We tested the dependence of the heliocentric orbital elements on the reduced meteor data, the pre-atmospheric velocity and the position of the radiant, using a simple model of the geometry of a meteoroid’s encounter with the Earth. A simulated change of 1 deg in the radiant position and 1 ​km ​s−1 in the pre-atmospheric velocity of a geminid-kind of meteoroid gave a dispersion of ± 0.01 au in its perihelion distance and ± 2 deg in its inclination. A simulated positive error of 1 ​km ​s−1 in the pre-atmospheric velocity applied to a typical perseid-type test particle produced orbits of which more than one third were hyperbolic.

中文翻译：

---

流星测量误差对流星体日心轨道的影响

摘要 目前的研究表明，测量误差可能会显着改变流星标称轨道参数，并可能产生虚假流星体轨道，从而导致真实流星体种群的失真。我们使用流星体与地球相遇的简单几何模型测试了日心轨道元素对减少的流星数据、大气层前速度和辐射点位置的依赖性。模拟的双子类流星体的辐射位置 1 度和大气前速度 1 公里 s−1 的变化，其近日点距离为 ± 0.01 au，倾角为 ± 2 度。