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Information × Registration Number 0211U004126, 0108U000594 , R & D reports Title Improvement of dynamical parameters of motion of the Solar system bodies popup.stage_title Head Pinigin Gennadiy Ivanovich, Registration Date 26-01-2011 Organization Research Institute "Nikolaev Astronomical Observatory" popup.description2 The catalog of 2237 topocentrical astrometrical positions in the system of the UCAC3 catalog (ICRS) with standard error of 0.16" in right ascension and 0.14" in declination was compiled from reduction of CCD observations of 78 selected asteroids observed with RTT150 in 2008-2010. There were made photometrical measurements for 1842 positions (82% of positions) in the standard BVR system of Johnson-Cousins-Bessel with standard error of 0.14 magnitude in the B-band, 0.09 magnitude in the V-band, 0.14 magnitude in the R-band. Using modeling of motion of a series of asteroids and the ephemerides DE405 of large bodies of the Solar system, there were determined masses of two asteroids: (10) Hygiea (m = (4.03 ± 0.10) x 10-11 of Solar mass) and (152) Atala (m = (1.34 ± 0.27) x 10-11 of Solar mass) by dynamical method, and found their mean densities of 2.0 g/cm3 and 2.2 g/cm3 respectively. Product Description popup.authors Іванцов Анатолій Валентинович Гудкова Людмила Олександрівна popup.nrat_date 2020-04-02 Close