Erriapus

A confirmed moon in the Saturn system.

Named · Saturn XXVIII · S/2000 S 10

Snapshot 2026-09-09 · catalog 1.0.0

Explore Erriapus in Orrery

Physical measurements

Mean radius
— No value in the admitted source set.
GM · gravitational parameter
— No value in the admitted source set.
Mass
— Mass requires an admitted GM estimate.
Mean density
— No value in the admitted source set.

Orbit descriptions

Mean elements describe an average orbit. They are not positions for a chosen date.

SAT456 · ecliptic plane · 2000-01-01.5 TDB
Semimajor axis
17,506,900 km
Sidereal period
864.924 days
Eccentricity
0.475
Inclination to reference plane
37.1°
Argument of periapsis
279.8°
Mean anomaly
14.3°
Ascending node
146.2°
Apsidal / nodal precession periods
362.1 / 407.8 years
Reference-plane pole RA / Dec
— / —°
Plane tilt to parent equator
—°
Reference center
Not specified in this summary sourceThe summary table identifies a parent system but does not explicitly specify the reference center for each solution. Do not infer a physical-primary center, especially for Pluto’s circumbinary moons.

Orientation

No supported orientation model in the admitted PCK source.

Identity & availability

Stable catalog ID
erriapus
JPL / NAIF satellite ID
628
Names & designations
Erriapus · S/2000 S 10
Discovery / rediscovery years
2000B. Gladman, J. Kavelaars, J.-M. Petit, H. Scholl, M. Holman, B.G. Marsden, P. Nicholson, J.A. Burns

No validated dated trajectory admitted in catalog 1.0.0. Mean elements are not ephemerides.

No image or global texture admitted in this catalog release.No environment measurements admitted in this catalog release.

Sources & evidence

  1. JPL discovery circumstancestable tr[148] (zero-based); saturn / Erriapus · References: IAUC 7539
  2. MPC planetary satellite listitems[29]; Saturn 28
  3. MPC satellite namesitems[43]; Saturn 28
  4. JPL mean orbital elements#sat_elem row ID=151; Saturn / Erriapus / NAIF 628 · References: 48

Full catalog, uncertainty and source manifests · All Saturn moons · Moon model limits