Kulichenko M. Catalog of meteoroid heliocentric orbits obtained from television observations

The thesis refers to creation of kinematic parameters and heliocentric orbital elements catalog of meteoroids which observed in Earth atmosphere as meteors by RI “MAO” telescopes in 2013-2016. Double station observations were conducted by TV CCD-cameras using “track-and-stack” technique for obtaining of reference stars frames. One more feature of the observations is that lens with focal length > 50 mm were used and it has gave the possibility of short baseline (11.7 km) using and detecting of meteoroids with masses < 0.01 g. As a result the catalog of kinematic parameters of atmospheric trajectory 20 and heliocentric orbital elements for 1055 meteoroids was obtained. For estimation of heliocentric orbital elements accuracy method Monte-Carlo was implemented. Accuracy of velocity calculation is about 0.5 km/s, accuracy of height calculation – (50-150) m. A comparison of the obtained catalog with other open databases for the range of masses of meteor bodies <0.01 g was made and an estimation of the ratio of bodies of asteroid and comet origin for this range of masses was carried out. The share of orbits of the asteroid type is 38% for all the meteoroid catalogs, and 2.5% for meteoroid with mass <0.01 g. Keywords: meteor, meteoroid, heliocentric orbit, video observations of meteors, “track-and-stack” technique.