1. Strategies for plane change of Earth orbits using lunar gravity and derived trajectories of family G

   • C. F. de Melo
   • E. E. N. Macau
   • O. C. Winter

   Original Article 24 March 2009 Pages: 281 - 299

2. Multiple solutions in preliminary orbit determination from three observations

   • Giovanni Federico Gronchi

   Original Article 24 March 2009 Pages: 301 - 326

3. 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

4. Motion of dust in mean motion resonances with planets

   • Pavol Pástor
   • Jozef Klačka
   • Ladislav Kómar

   Original Article 24 March 2009 Pages: 343 - 364

5. Proposals for the masses of the three largest asteroids, the Moon-Earth mass ratio and the Astronomical Unit

   • E. V. Pitjeva
   • E. M. Standish

   Original Article 01 April 2009 Pages: 365 - 372