Arche

MOONMoon of Jupiter

ILLUSTRATION · NO MEASURED PROPERTIES · SHADING, NOT THE PHASE

[

OVERVIEW

] MOON

Arche is a moon of Jupiter. It orbits Jupiter at a mean distance of 2.31×10⁷ . It was discovered in 2002.

WHAT IT IS
Moon of Jupiter
HOW FAR
2.31×10⁷

Its average distance from Jupiter, not from Earth.

ONE ORBIT TAKES
717

One trip round Jupiter.

[

CATALOG DATA

] 22 FIELDS

The raw catalogue values, as the source published them, with the error bars where one was published — sorted by what each set of figures is about rather than by the order they happened to be stored in.

THE ORBIT

The shape of the path, where the object sits on it, and the instant those figures were true of. An orbit is a fit to observations and drifts away from the real one either side of its epoch.

Orbits
Jupiter
Orbital period
717.1056
Eccentricity
Inclination
164.5
Longitude of ascending node
333.3
Argument of periapsis
172.5
Mean anomaly
34
Element epoch
2451545.0000
Elements referred to
the ecliptic — the plane of the Earth's orbit
Apsidal precession period
51
Nodal precession period
89
Mean anomaly fitted to the ephemeris
69.93
Mean anomaly rate
0.39189
Apsidal precession rate
0.019326
Nodal precession rate
0.0110745
Agreement with the ephemeris
119.49

WHEN IT WAS FOUND

Who first saw it, from where, and by what method.

Discovered by
S.S. Sheppard

OTHER NAMES AND NUMBERS

The identifiers other catalogues file this object under, for anyone joining this data to theirs.

Also known as
Jupiter XLIII
JPL satellite code
543
Wikidata item
Q17429
Wikipedia article
Arche (moon)

WHERE THESE FIGURES CAME FROM

Which catalogue, paper or model each of the fields above was read from, where the source named one.

Ephemeris
JUP347
[

ALSO KNOWN AS

] 1 DESIGNATIONS
  • Common name Arche
[

CITE THIS PAGE

] DR1

This page is live and its numbers move when an upstream refreshes, so the citation names the release the rows belong to rather than the day you read them. The release itself is frozen, republished as a bundle, and is what a data-availability statement should point at.

PLAIN TEXT
SpaceCatalog. Arche [catalogue entry]. Data release DR1 (2026-08-21). https://spacecatalog.org/object/arche
BIBTEX
@misc{spacecatalog_arche,
  author       = {{SpaceCatalog}},
  title        = {{Arche}},
  howpublished = {SpaceCatalog, data release DR1 (2026-08-21)},
  year         = {2026},
  url          = {https://spacecatalog.org/object/arche},
  note         = {Catalogue entry, data release DR1 (2026-08-21). Values from JPL Planetary Satellite Data.}
}

The values above were taken from JPL Planetary Satellite Data — No licence stated; citation requested. Citing this page does not replace citing that catalogue.

That catalogue asks for this acknowledgement: Solar System Dynamics. (Downloaded 2026, September 13). Planetary Satellite Mean Elements; Planetary Satellite Physical Parameters; Planetary Satellite Discovery Circumstances. https://ssd.jpl.nasa.gov

[

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