The asteroid observations at Russian-Turkish telescope RTT-150 in 2004-2013

1Gumerov, RI, 2Khamitov, IM, 3Hudkova, LA, 3Maigurova, NV, 3Pinigin, GI, 4Kochetova, OM, 4Chernetenko, YA, 5Aslan, Z, 3Pomazan, AV, 3Kryuchkovskiy, VF
1Kazan Federal University, Kazan, Russia
2TÜBİTAK National Observatory, Antalya, Turkey
3Research Institute "Mykolaiv Astronomical Observatory", Mykolaiv, Ukraine
4Institute of Applied Astronomy of RAS, St. Petersburg, Russia
5Istanbul Kültür University, Istanbul, Turkey
Kinemat. fiz. nebesnyh tel (Online) 2015, 31(6):32-46
Start Page: Positional and Theoretical Astronomy
Language: Russian

The analysis results of the array of 13834 topocentric positions of 231 asteroids are presented. These positions were obtained from observations at the Russian-Turkish Telescope RTT-150 (TUBITAK, Turkey) during 2004—2013. The asteroids positions were calculated by differential reduction method in the ICRS system with usage of reference catalogs of UCAC series. The main belt asteroids, which had close approach with other asteroids, and near-Earth asteroids (NEA) were included to the program of observations. The mean square errors of one position were 84 mas in right ascension and 68 mas in declination for main belt asteroids, for NEAs — 120 mas and 160 mas in right ascension and declination respectively. The resulting array of the asteroids positions extends arc of the ground-based observations of these bodies, that is important to clarify the elements of their orbits. In addition, observations of the main belt asteroids during close encounters are valuable for the asteroid mass determination with dynamic method. It is shown, that uncertainties of mass estimates of perturbing asteroid and orbital parameters of perturbed bodies are decreased when these observations are added to the input data set for solving the task of the asteroid mass determination.

Keywords: asteroids, Russian-Turkish telescope

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