Puck

A confirmed moon in the Uranus system.

Named · Uranus XV · S/1985 U 1

Snapshot 2026-09-09 · catalog 1.0.0

Explore Puck 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: ≈ 77 × ≈ 77 × ≈ 77 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.

URA182 · equatorial plane · 2000-01-01.5 TDB
Semimajor axis
86,004 km
Sidereal period
0.761833 days
Eccentricity
0
Inclination to reference plane
0.3°
Argument of periapsis
0°
Mean anomaly
50.1°
Ascending node
216.1°
Apsidal / nodal precession periods
2.226 / 4.454 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.
URA184 · Laplace plane · 2025-01-01.0 TDB
Semimajor axis
86,007 km
Sidereal period
0.7618 days
Eccentricity
0.009
Inclination to reference plane
1.1°
Argument of periapsis
337°
Mean anomaly
264.1°
Ascending node
111.2°
Apsidal / nodal precession periods
1.9 / 3.9 years
Reference-plane pole RA / Dec
77.3 / 15.2°
Plane tilt to parent equator
180°
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
257.31, 0, 0
Pole declination
-15.18, 0, 0
Prime meridian
91.24, -472.545069, 0
Reference epoch
JD 2451545 TDB

Periodic corrections

RA and prime-meridian corrections multiply sine; declination corrections multiply cosine. Each row uses the same angle polynomial for its three corrections.

Term 1 · angle coefficients
115.75, 54991.87, 0RA: 0° · Dec: 0° · meridian: 0°
Term 2 · angle coefficients
141.69, 41887.66, 0RA: 0° · Dec: 0° · meridian: 0°
Term 3 · angle coefficients
135.03, 29927.35, 0RA: 0° · Dec: 0° · meridian: 0°
Term 4 · angle coefficients
61.77, 25733.59, 0RA: 0° · Dec: 0° · meridian: 0°
Term 5 · angle coefficients
249.32, 24471.46, 0RA: 0° · Dec: 0° · meridian: 0°
Term 6 · angle coefficients
43.86, 22278.41, 0RA: 0° · Dec: 0° · meridian: 0°
Term 7 · angle coefficients
77.66, 20289.42, 0RA: 0° · Dec: 0° · meridian: 0°
Term 8 · angle coefficients
157.36, 16652.76, 0RA: 0° · Dec: 0° · meridian: 0°
Term 9 · angle coefficients
101.81, 12872.63, 0RA: 0° · Dec: 0° · meridian: 0°
Term 10 · angle coefficients
138.64, 8061.81, 0RA: -0.33° · Dec: 0.31° · meridian: -0.09°
Term 11 · angle coefficients
102.23, -2024.22, 0RA: 0° · Dec: 0° · meridian: 0°
Term 12 · angle coefficients
316.41, 2863.96, 0RA: 0° · Dec: 0° · meridian: 0°
Term 13 · angle coefficients
304.01, -51.94, 0RA: 0° · Dec: 0° · meridian: 0°
Term 14 · angle coefficients
308.71, -93.17, 0RA: 0° · Dec: 0° · meridian: 0°
Term 15 · angle coefficients
340.82, -75.32, 0RA: 0° · Dec: 0° · meridian: 0°
Term 16 · angle coefficients
259.14, -504.81, 0RA: 0° · Dec: 0° · meridian: 0°
Term 17 · angle coefficients
204.46, -4048.44, 0RA: 0° · Dec: 0° · meridian: 0°
Term 18 · angle coefficients
632.82, 5727.92, 0RA: 0° · Dec: 0° · meridian: 0°

Identity & availability

Stable catalog ID
puck
JPL / NAIF satellite ID
715
Names & designations
Puck · S/1985 U 1
Discovery / rediscovery years
1985Voyager Science Team

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.

JPL lists both URA182 (equatorial, 2000 epoch) and URA184 (Laplace, 2025 epoch). Both are retained; no single default orbit is selected.

Sources & evidence

  1. JPL discovery circumstancestable tr[429] (zero-based); uranus / Puck · References: IAU WGPSN
  2. MPC satellite namesitems[127]; Uranus 15
  3. JPL mean orbital elements#sat_elem row ID=414; Uranus / Puck / NAIF 715 · References: 45
  4. JPL mean orbital elements#sat_elem row ID=424; Uranus / Puck / NAIF 715 · References: 10
  5. NAIF PCK 00011BODY715_POLE_RA/POLE_DEC/PM/NUT_PREC_*; BODY7_NUT_PREC_ANGLES; active data blocks
  6. NAIF PCK 00011BODY715_RADII; active data block

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