METHOD OF THREE-AXIS ORIENTATION OF SPACECRAFT IN ORBITAL COORDINATE SYSTEM

摘要

FIELD: space engineering; designing spacecraft motion control systems.;SUBSTANCE: proposed method is performed by information of orientation unit to Sun by introducing the orbit parameters into on-board computer followed by calculating the Sun position in observation field of orientation unit for each point of orbit for orientation of axes in orbital coordinate system; search angular velocity is set for spacecraft to ensure capture of Sun by observation field of orientation unit, after which angular velocity is decreased to zero ensuring position of Sun in observation field of orientation unit. Then spacecraft is turned in such way that Sun should move to required initial point; turning the spacecraft to preset points is continued for each orbital point.;EFFECT: reduced mass; simplified construction of spacecraft due to reduced number of instruments and units; extended field of application.;3 dwg