【摘要】 近年来,小行星飞掠地球事件频发,必须考虑防御问题。与近地空间对空间碎片的防御类似,防御的前提是必须了解防御目标在何处?这就涉及到太阳系小天体轨道运动的相关问题,即定轨和预报问题。本文将着重论述处理近地天体轨道运动问题应采用的动力学模型和拟选择的数学方法,并附有必要的数值检验与分析。更多还原

【Abstract】 In recent years, asteroids have been flying over the Earth, and it is necessary to consider the issue of asteroid defense. Similar to the defense against space debris in near-Earth space, the premise of asteroid defense is to understand where the dangerous object is? This involves the problems related to the orbital motion of the near-Earth objects in the solar system, namely the orbit determination and forecasting problems. This paper mainly focuses on the dynamics model and the mathematical method to be selected for dealing with these problems, and together with the necessary numerical tests and analysis.更多还原