1. Experiments in orbit determination using numerical methods

   • C. R. Traas

   OriginalPaper Pages: 299 - 317

2. Attitude equilibria of dual spin satellites subject to gravitational torques ofn bodies

   • Madeleine Pascal

   OriginalPaper Pages: 319 - 347

3. The KS-transformation in hypercomplex form and the quantization of the negative-energy orbit manifold of the Kepler problem

   • Maria Dina Vivarelli

   OriginalPaper Pages: 349 - 364

4. A new orbit of Comet 1961 V (Wilson-Hubbard)

   • Richard L. Branham Jr.

   OriginalPaper Pages: 365 - 373

5. The libration of a satellite caused by the tidal field of its planet

   • M. Caputo

   OriginalPaper Pages: 375 - 390

6. Secular perturbations of asteroids in secular resonance

   • Hiroshi Nakai
   • Hiroshi Kinoshita

   OriginalPaper Pages: 391 - 407

7. A set modified equinoctial orbit elements

   • M. J. H. Walker
   • B. Ireland
   • Joyce Owens

   OriginalPaper Pages: 409 - 419