Thelxinoe

A confirmed moon in the Jupiter system.

Named · Jupiter XLII · S/2003 J 22

Snapshot 2026-09-09 · catalog 1.0.0

Explore Thelxinoe 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.

JUP347 · ecliptic plane · 2000-01-01.5 TDB
Semimajor axis
20,972,300 km
Sidereal period
620.546 days
Eccentricity
0.229
Inclination to reference plane
150.7°
Argument of periapsis
307°
Mean anomaly
275.1°
Ascending node
174.9°
Apsidal / nodal precession periods
73.6 / 111.7 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
thelxinoe
JPL / NAIF satellite ID
542
Names & designations
Thelxinoe · S/2003 J 22
Discovery / rediscovery years
2003S.S. Sheppard

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[46] (zero-based); jupiter / Thelxinoe · References: IAUC 8276
  2. MPC planetary satellite listitems[74]; Jupiter 42
  3. MPC satellite namesitems[149]; Jupiter 42
  4. JPL mean orbital elements#sat_elem row ID=44; Jupiter / Thelxinoe / NAIF 542 · References: 47

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