The bestselling author of "Pandora's Clock" returns with a riveting thriller set in the world of commercial spaceflight. The year is 2009, and when a micrometeorite punches through the wall of a just-launched spacecraft, killing the pilot, passenger Kip Dawson discovers he is truly alone.

This book introduces readers to the navigation, guidance and control technologies involved in single-spacecraft, double-spacecraft, and multiple-spacecraft tasks in elliptical orbits. It comprehensively covers the key technologies of guidance, navigation and control (GNC) system design for spacecraft in elliptical orbits, including the orbit design, formation configuration design and maintenance, autonomous navigation technology and relative navigation technology, as well as autonomous rendezvous technology. The methods that this book introduces are very close to actual practical engineering applications and presented in an accessible style. The book can serve as reference teaching material for senior undergraduates and postgraduates with space navigation related majors, while also providing essential information and guidance for research personnel and engineering technical personnel engaged in the development of GNC systems for spacecraft.

This Technical Note presents a general FORTRAN Code and computer program flowcharts for twelve different Preliminary Orbit Determination Methods (PODM). A number of solutions were obtained from each PODM using input data from a predetermined reference orbit. A comparison of these PODMs in their ability to converge, error propogation, computation time, and total computer core requirements is presented.