This is the orbit that following a Titan flyby on November 29th, commits Cassini irrevocably to its 20 F-ring-grazing orbits until April next year.
This orbit includes some ISS gap-filling imaging of Enceladus' north pole and the penultimate close Titan encounter. Details here
Details available via the same link for revolutions 251-253 with goodies too numerous to mention here....
