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dsc35760.jpg
Detail of the reaction control wheels. Similar in concept to control moment gyros, they're used to maintain or fine-tune the satellite's orientation in space without using thrusters.
For a somewhat technical description of the system, refer to Attitude Control System Design for the Solar Dynamics Observatory.
| Time picture taken | Wed Jun 27 15:02:02 2007 |
| Location picture taken | Various Working Areas Goddard Space Flight Center Greenbelt, MD |
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