UPSA Object Registry
Registry · solar system

Thalassa

Natural satellite JPL Horizons
Mean radius
40 km
Orbital period
0.31108 d
Geometric albedo
0.06

Also known as

2 identifiers

Horizons 804NIV

Recorded parameters

7 quantities with a single published value
ParameterValueUnitUncertainty As publishedSourceReference
Mean radius 40 km Mean radius (km) JPL Horizons JPL Horizons on-line ephemeris system
Orbital period 0.311078 d Orbital period JPL Horizons JPL Horizons on-line ephemeris system
Geometric albedo 0.06 Geometric Albedo JPL Horizons JPL Horizons on-line ephemeris system
Eccentricity e 0 e Eccentricity, e JPL Horizons JPL Horizons on-line ephemeris system
Inclination i deg 0.2 deg Inclination, i (deg) JPL Horizons JPL Horizons on-line ephemeris system
Mean dens g cm 3 1.3184 g cm^-3 Mean dens (g cm^-3) JPL Horizons JPL Horizons on-line ephemeris system
Semi major axis a km 50,100 km Semi-major axis, a (km) JPL Horizons JPL Horizons on-line ephemeris system

Provenance

where this card came from
ArchiveRead at (UTC)Record
JPL Horizons 2026-08-14 17:11 open at source

Machine-readable: /api/v1/object/thalassa · Registry entry updated 2026-08-14.