S/2022 J 1 | |
Discoverer: | Scott S. Sheppard |
Discovery Site: | Cerro Tololo Obs. |
Discovered: | 30 August 2022 |
Epoch: | 31 March 2024 (JD 2460400.5) |
Observation Arc: | 20.62 yr (7,530 d) |
Earliest Precovery Date: | 24 February 2003 |
Eccentricity: | 0.1357222 |
Period: | –2.05 yr (–748.64 days) |
Mean Anomaly: | 184.22280° |
Mean Motion: | / day |
Inclination: | 165.94051° |
Asc Node: | 51.07021° |
Arg Peri: | 334.92072° |
Satellite Of: | Jupiter |
Group: | Carme group |
Mean Diameter: | ≈ |
Albedo: | 0.04 |
Magnitude: | 23.8 (average) |
Abs Magnitude: | 17.0 |
S/2022 J 1 is a small outer natural satellite of Jupiter discovered by Scott S. Sheppard on 30 August 2022, using the 4.0-meter Víctor M. Blanco Telescope at Cerro Tololo Observatory, Chile. It was announced by the Minor Planet Center on 22 February 2023, after observations were collected over a long enough time span to confirm the satellite's orbit.
S/2022 J 1 is part of the Carme group, a tight cluster of retrograde irregular moons of Jupiter that follow similar orbits to Carme at semi-major axes between NaNe6km, orbital eccentricities between 0.2 and 0.3, and inclinations between 163 and 166°. It has a diameter of about for an absolute magnitude of 17.0. The moon has been observed for over 20 years, with the earliest known observation on 24 February 2003.