Philophrosyn is a natural satellite of Jupiter in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Jupiter
- Satellite: Philophrosyn
- Satellite code: 558
- 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: 22600200. km
- Eccentricity e: 0.221
- Argument of periapsis ω: 0.9 deg
- Mean anomaly M: 88.9 deg
- Inclination i: 146.1 deg
- Longitude of ascending node: 234.3 deg
- Sidereal period P: 694.2042 days
- Argument of periapsis precession period: 75.6 yr
- Longitude of ascending node precession period: 105.8 yr
- Mean elements reference: 47