S/2004 S 28

S/2004 S 28 is a natural satellite of Saturn. Its discovery was announced by Scott S. Sheppard, David C. Jewitt, and Jan Kleyna on October 7, 2019, from observations taken between December 12, 2004, and March 21, 2007.^[3]

S/2004 S 28

Discovery[1]
Discovered by	Sheppard et al.
Discovery date	2019
Designations
Alternative names	S8386a[2]
Orbital characteristics[2]
Semi-major axis	21791300 km
Eccentricity	0.133
Orbital period (sidereal)	−1197.2 days
Inclination	171.0°
Satellite of	Saturn
Group	Norse group
Physical characteristics
Mean diameter	4 km
Apparent magnitude	24.9

S/2004 S 28 is about 4 kilometres in diameter, and orbits Saturn at an average distance of 22.020 Gm in 1220.31 days, at an inclination of 170° to the ecliptic, in a retrograde direction and with an eccentricity of 0.143.^[3]