(1) Department of Astronomy and Astrophysics,
Faculty of Mathematics and Physics,
Comenius University,
Mlynska Dolina, 842 15 Bratislava, Slovak Republic
(2) Astronomical Institute, Slovak Academy of Sciences,
Dubravska cesta 9, 842 28 Bratislava, Slovak Republic
Dispersions of orbital elements for dust particles released from comet Encke are calculated. Gravitational perturbations of planets and non-gravitational effects acting on these meteoroid particles are taken into account. Numerical simulations are compared with the present observational data.
Particles are released from perihelia of comet Encke at its various returns in the past. Ejection velocities of 20 and 40 m/s are considered for the meteoroids.
The orbits of the model meteoroids do not cover the interval of the perihelion longitudes, of the perihelion distances and the inclinations, which are common for observations. This discrepancy can be explained by the existence of another mother body of the observed meteoroids.