Accession Number : ADA230473


Title :   Realistic Orbits about the Martian Moons


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Bryant, Samuel R.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA230473


Report Date : DEC 1990


Pagination or Media Count : 99


Abstract : Orbits about the Martian moons, Phobos and Deimos, previously found to be stable by the Poincare surface of section technique in a restricted three- body system, were investigated with non-zero eccentricity of the moons added to the dynamics of the planar four-body system (Mars, moon sun, artificial satellite). Although not strictly applicable to this case, the surface of section technique was used to verify whether or not the previously found stable orbits were realistic when a real world perturbation was added to the system dynamics. The surface of section technique involves the numerical integration of several orbits with the same initial value of the Hamiltonian based on matching the angular rates of the orbit and moon with respect to Mars. Apoapsis and periapsis points of the orbits were plotted in the two-dimensional configuration space. Stable orbits were found when the points formed regions which are bounded; chaotic orbits were indicated by random points.


Descriptors :   *ORBITS , DYNAMICS , THESES , SURFACES , NUMERICAL INTEGRATION , CONFIGURATIONS , ARTIFICIAL SATELLITES , PERTURBATIONS , ANGULAR MOTION , MOON , HAMILTONIAN FUNCTIONS , ECCENTRICITY , SUN , MARS(PLANET) , STABILITY


Subject Categories : CELESTIAL MECHANICS


Distribution Statement : APPROVED FOR PUBLIC RELEASE