Reference Frames for Spacecraft Dynamics and Control
Reference Frames for Spacecraft Dynamics and Control
Reference Frames for Spacecraft Dynamics and Control
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Orbital Frame• Same as “roll-pitch-yaw”frame• The o 3 axis is in thenadir direction• The o 2 axis is in thenegative orbit normaldirection• The o 1 axis completesthe triad, <strong>and</strong> is in thevelocity vector direction<strong>for</strong> circular orbitsv r r r−ô 1ô 3ô 2− ŵ