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"Ballistic
and navigation design of missions to the Moon, A.G. Tuchin Abstract: This work is dedicated to
the design of spacecraft missions to the planets of the solar system and
their natural satellites. The problem of construction of quasi-synchronous orbits which pass
through a prescribed point over surface of Phobos at prescribed instant of
time is considered. The orbits should pass as close as possible to the
surface of Phobos at each passage above the planned region of landing. The methods for orbit determination of the
spacecraft on trajectory measurements on the background of the working
propulsion system are developed. Methods of an estimation of performance errors of dynamic operations
at SC flight to a planet-purpose for cases of use of chemical and low-thrust
engines are developed. Those
methods take into account prediction errors of spacecraft motion, the
performance errors of impulses, non-gravitational perturbations, etc. The
methods are based on the experience of ballistic and navigational support
missions to Venus: Venera 15/16 missions, Vega missions; to Mars: the
spacecraft Phobos-2. The methods were applied for the project Phobos-Grunt,
as well as the design of flight to the Moon for the projects Luna-Resurs and Luna-Glob; to the Venus for the
projects Venera-D, to system of Jupiter for spacecraft landing on the surface
of its natural satellite Europe. |
