Nereid (moon of Neptune)

Document v1 · published by Koskamo · updated 2026-10-05

Nereid is a natural satellite of Neptune in the NASA/JPL Solar System Dynamics planetary satellite tables.

Planet: Neptune
Satellite: Nereid
Satellite code: 802
GM: 0.00000 ± 0.00000 km³/s² (ephemeris NEP101)
Mean Radius: 170.00 ± 25.00 km (reference 1)
Mean Density: n/a
Ephemeris: NEP105
Reference frame: ecliptic
Epoch (TDB): 2020-01-01.0
Semi-major axis a: 5513900. km
Eccentricity e: 0.751
Argument of periapsis ω: 296.8 deg
Mean anomaly M: 318.5 deg
Inclination i: 5.1 deg
Longitude of ascending node: 319.5 deg
Sidereal period P: 360.133039 days
Argument of periapsis precession period: 7990.433 yr
Longitude of ascending node precession period: 9426.334 yr
Mean elements reference: 44

Source and provenance

Original source: ssd.jpl.nasa.gov
Published on Koskamo by: Koskamo
Citation version: Document v1
Reuse: NASA/JPL Solar System Dynamics planetary satellite mean elements and physical parameters (ssd.jpl.nasa.gov/sats), a work of the US government (public domain in the United States)

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Version history

Published by Koskamo2026-10-05
Version 1