This note derives the equations (7) to (9) for a time dependent x factor, with x defined in terms of the position field R sub r of UFT363. These equations can be solved for the orbit in terms of x and x dot. In the first instance these can be used as input parameters. It is already known from computation (UFT363) that a constant x gives a precessing orbit, a major discovery. In order to try to solve for x and x dot the assumption can be made of an inviscid, incompressible fluid spacetime governed by Eq. (14). This gives the additional equation (15) which can be solved simultaneously with Eqs. (7) to (9). The conservation of the angular momentum of fluid spacetime gives the vorticity equation (19) in terms of the Reynolds number R of fluid spacetime. At a particular Reynolds number the spacetime become turbulent, and the turbulence will affect the precessing orbit.