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## Main Question or Discussion Point

Hi all,

I have a gravitationally bound rubble pile asteroid. This asteroid reaches and exceeds 'critical' spin where centripetal force exceeds gravitational force and surface material is launched off the surface.

At what minimum initial velocity would the surface material need to be to achieve a circular orbit? Just looking for the equation or a reference site.

Cheers

David

I have a gravitationally bound rubble pile asteroid. This asteroid reaches and exceeds 'critical' spin where centripetal force exceeds gravitational force and surface material is launched off the surface.

At what minimum initial velocity would the surface material need to be to achieve a circular orbit? Just looking for the equation or a reference site.

Cheers

David