A Lunavator tether was selected to transport the payload from Lunar orbit to the Lunar surface due to its inherent bi-directional cpabilities. The Lunavator was to rotate in prograde with its orbit of the moon on an inclination of 1.8º with respect to the moon equatorial plane.
Were the tips to rotate with the same tangential velocity as the orbit it could drop the payload on the moon's surface with zero relative velocity.
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The tether was to orbit at an altitude of 580km and so had an orbital velocity of 1.455km/s. Unfortunately the payload approached to lMMET at too low a velocity to allow the tether tip to rotate with a tangential velocity of 1.455km/s.
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Ultimately a velocity disparity of 0.5904km/s was seen meaning a burn of chemical propellant would be required to slow the payload sufficiently.