摘要
用一次和的Adams-Cowell方法与经典的公式相比,减慢了舍入误差的积累.它是目前计算小偏心率轨道最有效的方法.本文详尽地给出了该方法的逐步积分公式,起步和非整步点内插公式,使之达到实用的地步.
As compared with the classical form, the Adams-Cowell formulae with the first sum are preferred for their slower accumulation of the roundoff error. It is the most efficient method among the existing integrators for integrating the orbits with small eccentricities. Based on this method, the article lists the formulae for step by step integration, for initial procedure and for interpolation at the non-step points and further develops them in detail to fit the practical application.
出处
《天文学报》
CSCD
北大核心
1992年第4期413-419,共7页
Acta Astronomica Sinica
基金
国家自然科学基金
关键词
数值方法
误差
内插
天文学
Numerical integrator—Roundoff error—Interpolation
