Saturn · natural satellite

Atlas

Mean diameter: 30.2 km
Mean orbital distance: 137,700 km from centre
Orbital period: 0.605 Earth days

Compared with our Moon

Atlas · 30.2 km

Moon · 3,474.8 km

One diameter scale. Circle shapes compare volume-equivalent diameters; irregular moons are not spheres.

Orbit & discovery

Surface gravity: 0.002 m/s²
Discovery: 1980
Discoverer / team: Voyager Science Team
Provisional designation: S/1980 S28
JPL satellite ID: 615
Orbital eccentricity: 0.001
Inclination: 0 degrees

Inclination reference: Laplace. Mean-element epoch: 2000-01-01.5 TDB · SAT415.

Diameters use volume-equivalent mean radii, including for irregular bodies. Mean orbital elements describe an orbit; they are not live positions. Missing physical measurements remain unavailable.

Physical measurements & uncertainties

Mean radius · km: 15.1 ±0.8 [1]
GM · km³/s²: 0.00037 ±0.00001 [SAT415]
Density · g/cm³: 0.3850 ±0.0613 [*]

Missions in the Saturn system · 5 records

5 launches · 0 linked events

These records cover the planetary system. A system mission did not necessarily visit this moon. Dedicated targets are marked separately; programme events include the journey and briefings. Launch outcomes do not establish arrival, landing success or present spacecraft operation.

Dedicated targets only

PLANETARY SYSTEM · UPCOMING