Research output: Chapter in Book/Report/Conference proceeding › Article in an anthology › Research
About Zones of Resonant Returns of Asteroid Apophis. / Sokolov, L.L.; Pitjev, N.P.; Shaidulin, V.Sh.
Protecting the Earth against Collisions with Asteroids and Comet Nuclei. Издательство "Наука", 2010. p. 279-283.Research output: Chapter in Book/Report/Conference proceeding › Article in an anthology › Research
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TY - CHAP
T1 - About Zones of Resonant Returns of Asteroid Apophis
AU - Sokolov, L.L.
AU - Pitjev, N.P.
AU - Shaidulin, V.Sh.
PY - 2010
Y1 - 2010
N2 - Asteroid Apophis is now one of extremely dangerous NEO. Different scenarios of the Apophis’ orbit dynamical evolution in frames of today knowledge of its orbit is discussed. Using analytical and numerical tools, we investigate a precision loss after approach with the Earth in 2029 and possible approach in 2036. After 2036 the Apophis motion may be non-determinable. Possible trajectories of collisions with the Earth have been found analytically and numerically in this chaotic region. To construct these trajectories we use quasi-random intermediate motions, made up from resonant collision orbits. The hazard trajectories are derived numerically using Everhart integrator and Solar System model DE405. The size of initial conditions regions leading to the collisions in 2040, 2041, 2042, 2044, 2047, 2051 is presented. The possibility of similar behaviour of other NEO trajectories is discussed.
AB - Asteroid Apophis is now one of extremely dangerous NEO. Different scenarios of the Apophis’ orbit dynamical evolution in frames of today knowledge of its orbit is discussed. Using analytical and numerical tools, we investigate a precision loss after approach with the Earth in 2029 and possible approach in 2036. After 2036 the Apophis motion may be non-determinable. Possible trajectories of collisions with the Earth have been found analytically and numerically in this chaotic region. To construct these trajectories we use quasi-random intermediate motions, made up from resonant collision orbits. The hazard trajectories are derived numerically using Everhart integrator and Solar System model DE405. The size of initial conditions regions leading to the collisions in 2040, 2041, 2042, 2044, 2047, 2051 is presented. The possibility of similar behaviour of other NEO trajectories is discussed.
M3 - Article in an anthology
SN - 978-5-02-025514-2
SP - 279
EP - 283
BT - Protecting the Earth against Collisions with Asteroids and Comet Nuclei
PB - Издательство "Наука"
ER -
ID: 4417264