      t0 = 4.D0/15.D0*sqrt(pi)*M*sqrt(5.D0)/R**2
                                dRC20(1,1)=t0

      t0 = 0
                                dRC20(1,2)=t0

      t0 = 0
                                dRC20(1,3)=t0

      t0 = 4.D0/15.D0*sqrt(pi)*M*sqrt(5.D0)/R**2
                                dRC20(2,2)=t0

      t0 = 0
                                dRC20(2,3)=t0

      t0 = -8.D0/15.D0*sqrt(pi)*M*sqrt(5.D0)/R**2
                                dRC20(3,3)=t0

