S/2003 J 23 is a natural satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard et al. in 2004 from pictures taken in 2003.
S/2003 J 23 is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 22,740 Mm in 700.538 days, at an inclination of 149° to the ecliptic (149° to Jupiter's equator), in a retrograde direction and with an eccentricity of 0.3931.
It belongs to the Pasiphaë group, irregular retrograde moons orbiting Jupiter at distances ranging between 22.8 and 24.1 Gm, and with inclinations ranging between 144.5° and 158.3°.