The semimajor axis of a hyperbolic orbit is always larger than the semimajor axis of an elliptical orbit.

For velocities larger than the escape velocity, the orbit is always a parabola.

The eccentricity of an elliptical orbit is negative, and the eccentricity of a hyperbolic orbit is positive.

The energy of an elliptical orbit is negative, and the energy of a hyperbolic orbit is positive.