| 궤도 장반경긴반지름 = 64738±3 km<ref name="ShowalterHamilton2015">{{저널 인용 |last1=Showalter|first1=M. R.|author1link=Mark R. Showalter|last2=Hamilton|first2=D. P.|title=Resonant interactions and chaotic rotation of Pluto’s small moons|journal=Nature|volume=522|issue=7554|date=3 June 2015|pages=45–49|doi=10.1038/nature14469}}</ref>