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Published online by Cambridge University Press: 14 August 2015
The evolution of meteorid orbits over long time periods has been studied using the Gauss-Halphen-Gorjatschew method taking into account perturbations from the outer four planets (Galibina 1970). As initial elements, 15 different meteor orbits were taken from photographic observations (McCrosky 1968). Calculations were carried out from the modern epoch back in time for intervals of 10000 to 100000 years. Initial elements and the time intervals are given in Table 1.