Atlas of Worlds

Calypso

A confirmed moon in the Saturn system.

Named · Saturn XIV · S/1980 S 25

Snapshot 2026-09-09 · catalog 1.0.0

Explore Calypso 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.

PCK reference shape axes: ≈ 15.3 × ≈ 9.3 × ≈ 6.3 km. These are model axes, not a mapped surface.

Orbit descriptions

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

SAT441 · Laplace plane · 2000-01-01.5 TDB
Semimajor axis
295,000 km
Sidereal period
1.8878 days
Eccentricity
0.001
Inclination to reference plane
1.5°
Argument of periapsis
221.6°
Mean anomaly
0°
Ascending node
326.6°
Apsidal / nodal precession periods
0.005 / 4.983 years
Reference-plane pole RA / Dec
40.6 / 83.5°
Plane tilt to parent equator
0°
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

NAIF-pck00011 supplies a modeled pole and prime meridian in the J2000 frame. A dated sky also needs compatible trajectories.

Pole right ascension
36.41, -0.036, 0
Pole declination
85.04, -0.004, 0
Prime meridian
153.51, 190.6742373, 0
Reference epoch
JD 2451545 TDB

Identity & availability

Stable catalog ID
calypso
JPL / NAIF satellite ID
614
Names & designations
Calypso · S/1980 S 25
Discovery / rediscovery years
1980D. Pascu, P.K. Seidelmann, W. Baum, D. Currie

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[134] (zero-based); saturn / Calypso · References: IAU WGPSN
  2. MPC satellite namesitems[24]; Saturn 14
  3. JPL mean orbital elements#sat_elem row ID=129; Saturn / Calypso / NAIF 614 · References: 36
  4. NAIF PCK 00011BODY614_POLE_RA/POLE_DEC/PM/NUT_PREC_*; BODY6_NUT_PREC_ANGLES; active data blocks
  5. NAIF PCK 00011BODY614_RADII; active data block

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