Abstract
A three-axis attitude control system, operated in real time by a ground-based computer, was designed and implemented for control of the Telesat Anik B commercial communications satellite, as a contingency in the event of failure in, the on-board attitude control system electronics. Pitch and roll data, derived from an RF sensor operating in the 14/12 GHz communications band of the satellite, is fed to the computer for the determination of thruster operations to control satellite attitude in real time (earth sensor data is used if it is available). The system is designed to maintain attitude continuously during steady-state operations and during orbit maneuvers, without interruption in commercial service. This paper presents a description of the design, implementation, tests, and performance results of the Anik B Ground Loop Attitude Control System.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
