This book develops a dynamical model of the orbital motion of Lorentz spacecraft in both unperturbed and J2-perturbed environments. It explicitly discusses three kinds of typical space missions involving relative orbital control: spacecraft hovering, rendezvous, and formation flying. Subsequently, it puts forward designs for both open-loop and closed-loop control schemes propelled or augmented by the geomagnetic Lorentz force. These control schemes are entirely novel and represent a significantly departure from previous approaches.

Ye Yan is currently a Professor with the College of Aerospace Science and Engineering, National University of Defense Technology, and the vice director of Institute of Space Technology. He is an expert of National High Technology Research and Development Program. His main research interests are spacecraft general design and space systems engineering. He has received five Provincial /Ministerial Scientific and Technological Progress Awards.

Xu Huang is currently a Ph.D. Candidate at the College of Aerospace Science and Engineering, National University of Defense Technology. His current research interests include spacecraft dynamics and control, underactuated control theory and applications in aerospace engineering, and electrostatic astrodynamics. He has received the Outstanding Paper Award for Young Scientists from the Committee on Space Research in 2016.

Yueneng Yang is currently a lecturer in College of Aerospace Science and Engineering, National University of Defense Technology. His research interests focus on flight dynamics and control, including nonlinear control, sliding mode control and intelligent control. He has published more than 30 papers in journals and conference proceedings. He was a recipient of the National Ministry of Education Award for Excellence in 2012.