"Orbital Mechanics" aims to provide a comprehensive and accessible reference for students, researchers, and professionals in the fields of aerospace engineering, astrophysics, and related disciplines. The book's primary objective is to demystify the complex principles governing the motion of objects in space and to offer practical insights into their application. Focusing on fundamental concepts and their practical implications, "Orbital Mechanics" bridges the gap between theory and real-world applications. The book covers topics such as Kepler's laws, orbital dynamics, perturbation theory, and spacecraft trajectory optimization, presenting them in a clear and concise manner that is accessible to readers with varying levels of expertise. Another important objective of the book is to highlight the interdisciplinary nature of orbital mechanics. By drawing connections between orbital dynamics and other fields such as mathematics, physics, and engineering, the book demonstrates the broad relevance and applicability of orbital mechanics in modern science and technology. The contributors to this book are renowned experts and scholars who have conducted extensive research in the field. By sharing their insights, practical experiences, and cutting-edge techniques, they provide readers with a comprehensive understanding of the challenges and opportunities in the field of cloud-based wireless multimedia.