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Acceleration of Numerical Integration of the Equations of Motion of Asteroids

机译:小行星运动方程数值积分的加速度

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Finding and studying possible collisions of asteroids approaching the Earth requires a significant amount of computation. This paper describes the R-0 program created to calculate the trajectories of a large number of virtual asteroids and the parameters of approaches with the bodies of the Solar System: planets, the Moon, and the Sun. The program uses the DE430 ephemeris and the Gauss-Everhart integration method. Comparison with the previously developed v19 software package in different tests showed an increase in performance by an order of magnitude or more. When integrating the motion of one asteroid, a lower acceleration was achieved; however, this problem was already solved in an acceptable time. Optimization was carried out for a large number of asteroids. We estimated the probability of collision of 200 asteroids by the Monte Carlo method using the new program. The results are compared with those obtained by NASA.
机译:寻找和研究接近地球的小行星的可能碰撞需要大量的计算。 本文介绍了创建的R-0程序,以计算大量虚拟小行星的轨迹以及与太阳系的尸体的方法的参数:行星,月亮和太阳。 该程序使用DE430星历和GAUSS-EVERHART集成方法。 与先前开发的V19软件包的比较在不同的测试中表现出幅度或更多的性能的增加。 当整合一个小行星的运动时,实现了较低的加速度; 但是,这个问题已经在可接受的时间内得到解决。 为大量的小行星进行了优化。 我们使用新程序估计了Monte Carlo方法的200个小星突然碰撞的可能性。 将结果与NASA获得的结果进行比较。

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