... Improving the Orbital Parameters of Phobos and Deimos by Using the Universal ... system was used for developing the numerical dynamical theory of Phobos and Deimos ... Small Solar System Body (SSSB), Phobos, Deimos, improving the orbital parameters ...
... the motion theories of the main satellites of Mars (Phobos, Deimos), Jupiter (Io, Europa, Ganymede, Callisto), Saturn (Mimas ... For the Phobos motion, the tidal perturbations from Mars are taken into account. ...
... The ERA system was used for developing the numerical dynamical theory of Phobos and Deimos.The orbits were obtained by fitting the numerical integration results to all available Earth-based astrometric observations for period 1877-2003 and spacecraft ...
... Abstract . M. D. Zamarashkina Improving the Orbital Parameters of Phobos and Deimos by Using the Universal Programming Complex ERA . 75 . Abstract . ...
... of observations of the satellites of Mars made by the spacecraft Mariner 9 in 1971--1972, Viking 1, 2 in 1976--1980, and Phobos 2 in 1989 with the real precision of 20 km leads to the same precision of ephemerides as the ground--based observations made ...