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Information × Registration Number 0305U003526, 0104U009154 , R & D reports Title Astronomical observations of the selected objects of space debris in the stationary orbits asteroids 25143 Itokawa and 2000 PH5 popup.stage_title Астрономічні спостереження обраних об'єктів космічного сміття в області геостаціонарних орбіт та астероїдів 25143 Itokawa і 2000 РН5 Head Lupishko D.F., Registration Date 25-04-2005 Organization Kharkov national university named after V.N. Karazin popup.description2 The objects of research are geostationary Earth satellites and near-Earth asteroids (NEAs) 25143 Itokawa, (54509) 2000 HY5 and 4179 Toutatis. The aim of the work is determination of equatorial coordinates of geostationary Earth satellites according to indications of Customer, and of equatorial coordinates and physical properties of near-Earth asteroids (54509) 2000 PH5 and 4179 Toutatis. The methods of research are photometric and astrometric CCD-observations, position measurements and data analysis. The astrometric CCD-observations of four geostationary Earth satellites (during 5 nights) and of two near-Earth asteroids (during 11 nights) were carried out and their equatorial coordinates were obtained. The photometric CCD-observations of NEAs (54509) 2000 PH5 and 4179 Toutatis were carried out during 18 nights and their lightcurves, absolute magnitudes, color indexes, rotation periods, sizes and other physical parameters were obtained. The orbital and physical data on NEAs 25143 Itikawa, (54509) 2000 PH5 and 4179 Toutatis, published and available at corresponding websites, were reviewed and generalized. These data are needed for the planning and carrying out of radar observations and for interpretation of obtained data. The results of this research are of a great interest from the point of view of fundamental science and of asteroid hazard problem. Obtained asteroid equatorial coordinates are sent to International Minor Planet Center (USA) where they are included to Database and will be used for the improvement of asteroid orbits. The obtained asteroid lightcurves will be included to International Database "Asteroid Photometric Catalogue". Product Description popup.authors popup.nrat_date 2020-04-02 Close