S2003_J_12 is a natural satellite of Jupiter in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Jupiter
- Satellite: S2003_J_12
- Satellite code: 55505
- Physical parameters: not listed in the NASA/JPL planetary satellite physical parameters table
- Ephemeris: JUP347
- Reference frame: ecliptic
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 20959300. km
- Eccentricity e: 0.235
- Argument of periapsis ω: 66.1 deg
- Mean anomaly M: 160.7 deg
- Inclination i: 150.0 deg
- Longitude of ascending node: 54.1 deg
- Sidereal period P: 619.9611 days
- Argument of periapsis precession period: 73.3 yr
- Longitude of ascending node precession period: 109.7 yr
- Mean elements reference: 47