Method and apparatus for reactionless rotation

Aeronautics and astronautics – Spacecraft – Spacecraft formation – orbit – or interplanetary path

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248550, 343DIG2, B64G 164, F16M 1300

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active

051316110

ABSTRACT:
An object mounted on a carrier constitute a rotationally free system such as a telescope on a space vehicle. A separation vector is directed from the center-of-mass of the carrier to the center-of-mass of the object. The object is rotated through a selected angle thereby defining a rotation vector. Simultaneously the object is translated so as to displace the object center-of-mass through a translation distance in a direction such that mathematically crossing the translation vector into the separation vector results in a further vector having the same direction as the rotation vector. A formula is provided for the translation distance in order that the object may be rotated without counter-rotation of the carrier.

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