Vilhena de Moraes, R. [UNESP]Carvalho, J. P. S. [UNESP]Prado, A. F. B. A.2014-05-272014-05-272011-12-0162nd International Astronautical Congress 2011, IAC 2011, v. 6, p. 4922-4927.http://hdl.handle.net/11449/72981Some orbital characteristics of lunar artificial satellites is presented taking into account the perturbation of the third-body in elliptical orbit and the non-uniform distribution of mass of the Moon. We consider the development of the non-sphericity of the Moon in zonal spherical harmonics up to the ninth order and sectorial harmonic C 22 due to the lunar equatorial ellipticity. The motion of the artificial satellite is studied under the single-averaged analytical model. The average is applied to the mean anomaly of the satellite to analyze low-altitude orbits which are of highest importance for future lunar missions. We found families of frozen orbits with long lifetimes for the problem of an orbiter travelling around the Moon.4922-4927engCelestial mechanicsFrozen orbitsKeywordsLunar artificial satelliteElliptical orbitsFrozen orbitLong lifetimeLow-altitudeNon-uniform distributionNonsphericityOrbital characteristicsPlanetary satellitesSpherical harmonicsAstrophysicsHarmonic analysisMoonOrbitsSatellitesTrabalho apresentado em eventoAcesso aberto2-s2.0-84864106145