Author : Clark E. Stohl
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (31 download)
Book Synopsis Attitude Reacquisition of a Gravity-gradient Control-moment-gyro Stabilized Spacecraft by : Clark E. Stohl
Download or read book Attitude Reacquisition of a Gravity-gradient Control-moment-gyro Stabilized Spacecraft written by Clark E. Stohl and published by . This book was released on 1970 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt: Impulsive or time-decaying disturbances of sufficient magnitude will cause a gravitygradient control-moment-gyro stabilized spacecraft to tumble. A procedure for operating a thruster system by ground command to perform reacquisition was functionally designed and evaluated on an analog computer. When the disturbance has ceased, an on-board thruster system is used to aline the total angular momentum vector of the spacecraft in an orientation that allows the control-moment gyros to damp all spacecraft motion into a single axis. For a spacecraft in a Sun-synchronous orbit, a procedure was found to shorten the time for attitude reacquisition by using a solar array for crude attitude information.