S/2007 S 3

S/2007 S 3 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on 1 May 2007 from observations taken between 18 January and 19 April 2007.

S/2007 S 3

Discovery[1]
Discovered by	Scott S. Sheppard et al.
Discovery site	Mauna Kea Obs.
Discovery date	16 January 2007
Orbital characteristics[2]
Epoch 9 August 2022 (JD 2459800.5)
Observation arc	14.48 yr (5,287 days)
Semi-major axis	0.1298753 AU (19,429,000 km)
Eccentricity	0.1428233
Orbital period (sidereal)	–2.77 yr (–1011.10 d)
Mean anomaly	270.66716°
Mean motion	0° 21m 21.778s / day
Inclination	176.62877° (to ecliptic)
Longitude of ascending node	127.32559°
Argument of perihelion	18.70983°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	≈5 km[3]
Albedo	0.04 (assumed)[3]
Apparent magnitude	24.9[3]
Absolute magnitude (H)	15.7[2]

S/2007 S 3 is about 5 kilometres in diameter, and orbits Saturn at an average distance of 19,429,000 kilometres in about 1,011 days, at an inclination of 176.6° to the ecliptic, in a retrograde direction and with an eccentricity of 0.143.^[2][4]

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