Astrodynamics is also called as orbital mechanics. It an application of celestial bodies and ballistics to the practical problems concerning motion of rockets and space crafts etc. It is the term used to explain the Newtonian mechanics in the modern physics to man made objects in space. Newton's law of universal gravitation and Newton's laws of Motion are the fundamental laws of Astrodynamics. Online Journals are scholarly and peer reviewed journals. The journals provide forum and motivates scientists, researchers, academics, engineers, and practitioners in all aspects to share their professional and academic knowledge in the fields computing, engineering, humanities, economics, social sciences, management, medical science, and related disciplines. Online Journals also aims to reach a large number of readers worldwide with original and current research work completed on the vital issues of the above important disciplines. The journals permit all readers to read, view, download and print the full-text of all published articles without any subscription or restrictions.