Nix is a natural satellite of Pluto in the NASA/JPL Solar System Dynamics planetary satellite tables.
- Planet: Pluto
- Satellite: Nix
- Satellite code: 902
- GM: 0.0015 ± 0.0005 km³/s² (ephemeris PLU060)
- Mean Radius: 18.0 ± 1.0 km (reference 3)
- Mean Density: 0.88 ± 0.31 g/cm³ (NASA note: Mean Density is derived from the specified GM and Mean Radius.)
- Ephemeris: PLU060
- Reference frame: equatorial
- Epoch (TDB): 2000-01-01.5
- Semi-major axis a: 49300. km
- Eccentricity e: 0.015
- Argument of periapsis ω: 31.4 deg
- Mean anomaly M: 338.2 deg
- Inclination i: 0.0 deg
- Longitude of ascending node: 0.0 deg
- Sidereal period P: 24.85 days
- Argument of periapsis precession period: -
- Longitude of ascending node precession period: -
- Mean elements reference: 6