Radial Impulse Transfer

If a particle in an elliptical orbit is given a quick radial impulse at periapsis, what will its new orbit be? Cf.: Goldstein 3.18 0:00 - Introduction and review 2:29 - New angular momentum and energy 3:46 - New semi-major axis 5:47 - New eccentricity 8:02 - New periapsis angle