      t0 = 0
                                dxC00(1,1)=t0

      t0 = 0
                                dxC00(1,2)=t0

      t0 = 0
                                dxC00(1,3)=t0

      t0 = -4.D0/3.D0*M*sqrt(pi)/R**2
                                dxC00(1,4)=t0

      t0 = 0
                                dxC00(2,2)=t0

      t0 = 0
                                dxC00(2,3)=t0

      t0 = 0
                                dxC00(2,4)=t0

      t0 = 0
                                dxC00(3,3)=t0

      t0 = 0
                                dxC00(3,4)=t0

      t0 = 0
                                dxC00(4,4)=t0

