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<title>GG Circular</title>
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<div align="center"> <img src="GGCircular.GIF" alt="Title" width="564"
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<div align="left"> A rigid spacecraft is subjected to a gravity gradient
torque in a circular<br>
orbit.<br>
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<b><u>Inputs<br>
</u></b><br>
<b>Ixx</b>,<b> Iyy, Izz </b>&#160;&#160; &#160;&#160;&#160; &#160;&#160;&#160; &#160; Principal
moments of inertia<br>
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<b><u>Initial Condition</u></b><br>
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<b>w1</b>, <b>w2, w3</b>: &#160;&#160;&#160; &#160;&#160;&#160; &#160;&#160;&#160; Spacecraft angular
velocities <br>
<b>q1, q2, q3, q4</b>: &#160;&#160;&#160; &#160;&#160;&#160; Quaternions<br>
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