Notes. N is the number of data. TheB-plane is defined as a plane orthogonal to the hyperbolic trajectory plane, and described by three unit vectors , , and , where is parallel to the hyperbolic excess velocity, lies in the ecliptic plane, and completes the right-handed triad. The unit vectors and are used as B-plane axes. The B-vector is defined to be the vector, B, from the origin (center of mass of the flyby target) to the spot where the incoming asymptote pierces the B-plane. B-plane data are the B-plane coordinates of B, , and , and the time of closest approach (TCA). The Voyager states at the TCA reported by the reference are used to compute the theoretical B-plane data. The value ν is the post-fit residual from our orbit fitting process; σ is the uncertainty reported by the reference.