Carpo

A confirmed moon in the Jupiter system.

Named · Jupiter XLVI · S/2003 J 20

Snapshot 2026-09-09 · catalog 1.0.0

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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
17,039,500 km
Sidereal period
454.4 days
Eccentricity
0.415
Inclination to reference plane
53.3°
Argument of periapsis
90.5°
Mean anomaly
336.6°
Ascending node
52.1°
Apsidal / nodal precession periods
285.1 / 182 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
carpo
JPL / NAIF satellite ID
546
Names & designations
Carpo · S/2003 J 20
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[50] (zero-based); jupiter / Carpo · References: IAUC 8125
  2. MPC planetary satellite listitems[72]; Jupiter 46
  3. MPC satellite namesitems[26]; Jupiter 46
  4. JPL mean orbital elements#sat_elem row ID=48; Jupiter / Carpo / NAIF 546 · References: 47

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