Trajectories of collisions of asteroids with the Earth and resonant returns

Authors

  • Sokolov L.L. St. Petersburg State University, St. Petersburg, Российская Федерация
  • Borisova T.P. St. Petersburg State University, St. Petersburg, Российская Федерация
  • Vasilyev A.A. St. Petersburg State University, St. Petersburg, Российская Федерация
  • Petrov N.A. St. Petersburg State University, St. Petersburg, Российская Федерация

UDC

521.1

Abstract

We discuss possible collisions of asteroids with the Earth, connected with resonant returns. The Everhart integrator and DE405 model were applied. Research was carried out using computer resources provided by Resource Center "Computer Center of SPbSU" (http://cc.spbu.ru). We have found more than 500 possible collisions of asteroid Apophis in XXI century, more than 150 keyholes are located near nominal Apophis orbit. The keyhole positions demonstrate structure, similar to fractal structure, due to resonant returnes. Positions and sizes of keyholes of other asteroids (2011 AG5, 2007 VK184) are discussed too. Our results are in agreement with similar results, presented in NASA publications.

Keywords:

asteroids, asteroid-comet hazard, trajectories, collisions

Acknowledgement

Работа выполнена при поддержке РФФИ (11-02-00232-а).

Author Infos

Leonid L. Sokolov

д-р физ.-мат. наук, профессор кафедры небесной механики Санкт-Петербургского государственного университета

e-mail: lsok@astro.spbu.ru

Tatyana P. Borisova

аспирант кафедры небесной механики Санкт-Петербургского государственного университета

e-mail: tanyaastro@mail.ru

Andrey A. Vasilyev

младший научный сотрудник лаборатории наблюдательной астрофизики Санкт-Петербургского государственного университета

e-mail: inter@astro.spbu.ru

Nikita A. Petrov

специалист Центра сопровождения образовательных программ и научных исследований Санкт-Петербургского государственного университета

e-mail: petrov@astro.spbu.ru

References

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Issue

2013. No. 4. Part 2

Pages

148-153

Submitted

2013-10-29

Published

2013-12-30

How to Cite

Sokolov L.L., Borisova T.P., Vasilyev A.A., Petrov N.A. Trajectories of collisions of asteroids with the Earth and resonant returns. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2013, no. 4, pp. 148-153. (In Russian)

Copyright (c) 2013 Sokolov L.L., Borisova T.P., Vasilyev A.A., Petrov N.A.

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