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STUDY OF NEAR EARTH OBJECTS
Abstract
In this work, the physical parameters of near Earth objects (NEO) are studied. The search for parent bodies of low-activity small meteor showers ? k-Cygnids, ?-Cancrids, and Virginids are performed among asteroids that could be faded comets. For k-Cygnids by all the catalogues of meteor orbits 2 asteroids are selected ? 153311 2001MG1, 385343 2002LV, whose orbits provide from 90% to 100% compliance with meteoroids? orbits of a shower. The 2012LL9 is only selected by 3 catalogues of meteor orbits. By catalogue of Astronomical Institute of the Czech Academy of Sciences other asteroids ? 2002JY8 and 2005LP40 ? are selected. As a result of analyzing 14800 NEO from the Apollo group, in this work near-Earth objects closely genetically related to the existing meteor showers are determined. 2002LV and 2001MG1 asteroids are the closest to the Kappa-Cygnids by orbital elements. 2014RS17, 2006BF56, 2001YB5 asteroids are the closest to the Delta-Cancrids by orbital elements. 2008VL14, 2006UF17, 2010VF, 2000DO1, 2010CF55, 2010TN55, 2007EJ88, 481482 2007CA19 asteroids are the closest to the Virginids by orbital elements. The genetic criterion definition methods were used in the analysis. The analysis of near-Earth objects (NEO), i.e. small celestial bodies crossing the Earth?s orbit, whose number exceeds 15 thousand, is important in terms of asteroid threats. These objects have highly elliptical orbits (HEO) with distances at perigee lower than 1.3 AU. NEO could be comet nuclei that had lost the icy component under the influence of solar radiation. The major part of NEO formed in the main belt, and they are mainly stony and iron. To search for a parent body of an observed meteor shower are used similarity D-criteria. The minimum value for D indicates a high degree of similarity between orbits of 2 small bodies.
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