Essential Spaceflight Dynamics and Magnetospherics

Essential Spaceflight Dynamics and Magnetospherics describes, in the first instance, some of the key aspects of celestial mechanics and spaceflight dynamics. It begins with classical two and three body problems illustrative of the aesthetic aspects of applying analytical methods of investigation to celestial mechanics. Then, osculating orbital elements are introduced as well as analysis techniques sufficient to evaluate the influence of various disturbing forces on spacecraft. Next a theory of manoeuvres is outlined and the methodology of making interplanetary trajectory corrections. Ideas involving various approaches to orbital element determinations using measured data are also considered. The forces applied to a spacecraft can result in the development of torques that influence attitude motion and the effects of the most important of these are described in terms of equilibrium positions, periodic motions, steady-state and transient motions. Also considered is the problem of attitude control of a spacecraft using active and/or passive methods of orientation and stabilization. In addition, a more advanced treatment of the development of attitude control systems is provided.

Contenu

Preface. About the Authors. 1. Two-Body Problem. 2. Qualitative Analysis of Orbits. 3. Perturbed Motion. 4. Gravispheres. 5. Osculating Elements. 6. Braking in the Earth's Atmosphere. 7. Terrestial Nonsphericity. 8. SC in the Field of Two Centers. 9. Elements of Manoeuvring Theory. 10. Trajectory Corrections. 11. Rendezvous Manoeuvring. 12. Gravity-Assist Manoeuvre. 13. About Orbit determination. 14. Introduction to Attitude Control. 15. Gravity-Gradient Torque Effect. 16. SC Motion in a Circular Orbit. 17. SC Motion in an Elliptical Orbit. 18. Spinning Axisymmetric SC. 19. Equilibrium of a Gyrostat. 20. Effect of Aerodynamic Torque. 21. SC in the Geomagnetic Field. 22. Motion of a SC Under Damping. Appendices: A: Method of van der Pol. B: Periodic Equations. C: Poincare's Method. Bibliography. Addendum: The Space Environment. A.1. Solar Activity and Near Earth Space. A.2. The Environment and SC performance. A.3. Overview of In-Orbit Disturbances. A.4. Beyond the Solar System. List of References for the Addendum. Index of Scientists Cited in Footnotes. List of Figures. List of Tables.