Shulga O. Studies of Near Earth Space by Ground-based Optical and Radio Methods.

Observations of the Near Earth Asteroids (NEA) and the Potentially Hazardous Asteroids (PHA) were carried out. The results are presented at online resource such as the Minor Planet Center. Using the Fast Robotic Telescope (FRT) and the Mobile Telescope (rus., KT-50), a catalog of 4042 positions of the NEA and the PHA in the magnitude range of 13m-18.5m was obtained by using observations of objects at distances of the order of 0.002-1.0 AU from the Earth. The catalog was obtained in the system of the ICRS with the standard error of observation of 0.1- 0.6". Usage of robotic telescopes of the RI MAO as well as telescopes of the Ukrainian Network of Optical Stations (ukr., UMOS) ensured the functioning of a special web site. The site presents the results of observations for: 65 satellites on low Earth orbit, 34 satellites on medium Earth orbit, 23 satellites on geostationary orbit. In total, observations of 212 satellites were obtained. The accuracy and precision of observations of artificial satellites and debries corresponds to the best world standards. Observations of meteors using robotic telescopes were organized. Using observations at single place, results of measurements for 4135 meteors were obtained to identify meteor showers by statistical methods. Using observations with baseline methods, measurement results for 125 meteors were obtained for calculation of: high precision radiants of meteor showers, the orbital elements of individual meteors. Interferometry method using four hardware-software complexes spaced throughout Ukraine (Kyiv, Mykolaiv, Mukachevo, Kharkiv) regular observations of geostationary telecommunications. XYZ coordinates of satellites are calculated using WGS84 coordinate system. The error in determining the coordinates XYZ amounted 350 m.