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Over the last 60 years, system engineers and space mission designers/analysts have invented and refined various orbits to meet the challenges of space technology applications. The first edition of this book summarized the perturbation theories and control (station keeping) algorithms needed to understand the dynamics, stability, and maintenance of those orbits. The book has served as an important resource, due to its collection of methods of orbital control and its communication of perturbation theories. This second edition contains three new chapters that will enrich the reader's...

Creation of a fundamentally new technical capability ideally begins with the recognition of some future need, a careful description of requirements, development, testing, and operational implementation. In contrast to this ideal situation, the launch of the Sputnik 1 satellite on 4 October 1957 created an immediate need within the United States to track and maintain a catalog of orbital elements for artificial Earth satellites. This required inventing a solution to a problem that did not even exist prior to 1957. Thus, the initial effort was driven both by external circumstances and by highly...