I've been reading up on the topic of gravitomagnetism, and how a gravitomagnetic field is created by a particle with mass moving through space the same way how an electromagnetic field is created by a particle with charge moving through space. Now I have been reading up on this topic, and obviously this would be a good way to warp the contents of spacetime. But I'm a bit confused on one thing. How do you calculate the speed at which the effect causes spacetime to travel? I have been playing around with the equations for days but have been unsuccessful in determining the velocity of spacetime. Can anyone help with this?