| S/2019 S 1 | |
| Discovery Ref: | [1] |
| Discoverer: | E. Ashton et al. |
| Discovered: | 2019 (announced 2021) |
| Alt Names: | e26r58a12 |
| Inclination: | 44.4° |
| Eccentricity: | 0.623 |
| Period: | 443.78 days |
| Satellite Of: | Saturn |
| Group: | Inuit group (Kiviuq) |
| Albedo: | 0.06 (assumed) |
| Magnitude: | 25.3 |
| Abs Magnitude: | 15.3 |
S/2019 S 1 is a natural satellite of Saturn. Its discovery was announced by Edward Ashton, Brett J. Gladman, Jean-Marc Petit, and Mike Alexandersen on 16 November 2021 from Canada–France–Hawaii Telescope observations taken between 1 July 2019 and 14 June 2021.[1]
S/2019 S 1 is about 5 kilometres in diameter, and orbits Saturn at an average distance of 11.2e6km in 443.78 days, at an inclination of 44° to the ecliptic, in a prograde direction and with an eccentricity of 0.623.[1] It belongs to the Inuit group of prograde irregular satellites, and is among the innermost irregular satellites of Saturn. It might be a collisional fragment of Kiviuq and Ijiraq, which share very similar orbital elements.[2]
This moon's eccentric orbit takes it closer than 1.5e6km to Iapetus several times per millennium.[2]