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7o0 Solar Array Control oooooooooooooooooooooo
8o0 Optimization of the Wheel and Coil System
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12 HOUR ORBIT accuracy actual space application altitudes analog computer approximately aspect ratio attitude control axes battery Block Diagram cated level CM/GAUSS coil current coils and gravity configuration curves are pessimistic detumbling directional vector disturbance torque applied DYNE dyne-cm DYNE-CM/GAUSS earth's magnetic field Electronics equations equipment errors are larger geomagnetic Gimbal gravity gradient torque ground control horizon scanner inertia input/output level of disturbance magnetic field vector magnetic torquers magnetometer moments of inertia momentum dumping obtained On-Board Orbit Angle orbit periods orbital position oriented array output Position and Rate position error Rate Errors Rate Gain rate gyros reaction wheel reasonably designed vehicle roll satellite shown in Figure signal simulation sinusoidal solar array solar cell solar paddles Solar Pressure solar sensor steradian sun sensor sunline synchronous orbit three-axis torque applied constantly torque coils Vehicle Displacement vertical watts yaw angle yaw axis YAW POSITION GAIN