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Information × Registration Number 0218U001467, 0117U004853 , R & D reports Title Comparison of surface microstructure of atmosphereless Solar system bodies and the Moon using space mission data popup.stage_title Head Shkuratov Yurii, Registration Date 19-04-2018 Organization Kharkov National University named after V.N. Karazin popup.description2 The objects of the study are asteroids of the main belt, comets, the Moon, satellites of the planets. The purpose of the stage is the selection of images of surfaces of small bodies that are suitable for analysis by the method of phase ratios; development of algorithms for correct accounting of lighting conditions for images; performing correction of images and finding disturbances of microstructure of a surface; analysis of the phase dependences of asteroid brightness in a wide range of phase angles; calculation of the phase integral for asteroids of different albedos and comparison with satellites of planets. Methods of research - photometric and spectral observations, computer simulation. A new model is proposed and phase function of intensity is obtained, which can be used to determine the parameters describing the structure of regolith and optical properties of atmosphereless bodies. It is shown that the new phase function approximates the phase dependences in a wide range of phase angles much better than previously used functions. The average phase dependence of asteroids of various albedos in a wide range of phase angles from 0 to 160 degrees is obtained. The value of the phase integral for asteroids with different albedo surfaces is calculated, this value is in the range of 0.35-0.54 with an average value of 0.43. Comparison of the values of phase integrals of the satellites of planets and asteroids indicates that for asteroids with albedo> 60%, the behavior of the phase function may differ from the typical behavior for asteroids E-type and new observations are needed to test this assumption. Product Description popup.authors І. Г. Слюсарев І. М. Бельська А. М. Довгопол В. В. Корохін В. Г. Кайдаш В. Г. Шевченко В. О. Псарьов Г. П. Марченко Л. В. Градиська М. В. Опанасенко Н. О. Ларіна Т. А. Громакіна Ю. Г. Шкуратов Ю. М. Круглий popup.nrat_date 2020-04-02 Close