S/2003 J 10

S/2003 J 10 is a retrograde irregular satellite of Jupiter. It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard et al. in 2003.^[4][1]

S/2003 J 10

S/2003 J 10 imaged by the Canada-France-Hawaii Telescope during follow-up observations in February 2003
Discovery [1]
Discovered by	Scott S. Sheppard et al.
Discovery site	Mauna Kea Obs.
Discovery date	6 February 2003
Orbital characteristics [2]
Epoch 9 August 2022 (JD 2459800.5)
Observation arc	18.68 yr (6,822 days)
Semi-major axis	0.1527889 AU (22,857,000 km)
Eccentricity	0.1527889
Orbital period (sidereal)	–1.93 yr (–705.96 d)
Mean anomaly	279.42900°
Mean motion	0° 30m 35.79s / day
Inclination	162.99423° (to ecliptic)
Longitude of ascending node	255.22186°
Argument of perihelion	302.24985°
Satellite of	Jupiter
Group	Carme group
Physical characteristics
Mean diameter	≈2 km[3]
Albedo	0.04 (assumed)[3]
Apparent magnitude	23.6[3]
Absolute magnitude (H)	16.9[2]

S/2003 J 10 is about 2 kilometres in diameter, and orbits Jupiter at an average distance of 22,857,000 km in approximately 706 days, at an inclination of 163° to the ecliptic, in a retrograde direction and with an eccentricity of 0.34.

It belongs to the Carme group.^[3]

This moon was considered lost^[5][6] until its recovery was announced on 12 October 2022.^[2]