Strategies for plane change of Earth orbits using lunar gravity and derived trajectories of family G C. F. de MeloE. E. N. MacauO. C. Winter Original Article 24 March 2009 Pages: 281 - 299
Multiple solutions in preliminary orbit determination from three observations Giovanni Federico Gronchi Original Article 24 March 2009 Pages: 301 - 326
Analytical solutions for the equations of motion of a space vehicle during the atmospheric re-entry phase on a 2-D trajectory Gabriel Mititelu Original Article 24 March 2009 Pages: 327 - 342
Motion of dust in mean motion resonances with planets Pavol PástorJozef KlačkaLadislav Kómar Original Article 24 March 2009 Pages: 343 - 364
Proposals for the masses of the three largest asteroids, the Moon-Earth mass ratio and the Astronomical Unit E. V. PitjevaE. M. Standish Original Article 01 April 2009 Pages: 365 - 372