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The theory of the motion of Mercury,Venus, Earth and Mars is constructed by numerical integration. The theory takes into account relativistic corrections in the frame of Schwarzschild 1 s space-time metrics. The constants of the theory are determined by discussion of the Soviet and American radar observations of Mercury, Venus and Mars f position astrometric observations of these planets (and the Sun) and observations of the Soviet artificial satellites of Venus. Apart from the planet elements the value AU and corrections to the adopted radii of Mercury, Venus and Mars are determined* Statistics of residuals is given and accuracy of the theory is estimated. The theory presented is an ephemeris base for deep space experiments. These theories are atributed to classical ones. To describe the planets motion they make use of the approximate analytical methods of motion equations integration. The classical theories accuracy evaluation based on the treatment of the results of long-time optical observa tions of the planets and the Sun has shown that they enable us to calculate the planets coordinates with 63 J. Kovalevsky and V. A. Brumberg (eds.) t Relativity in Celestial Mechanics and Astrometry, 63-68.

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