S/2022 J 2 is a small outer natural satellite of Jupiter discovered by Scott S. Sheppard on 15 October 2022 using the 6.5-meter Magellan-Baade Telescope at Las Campanas 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 2 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 , orbital eccentricities between 0.2 and 0.3, and inclinations between 163 and 166°. With a diameter of about for an absolute magnitude of 17.6, it is one of Jupiter's smallest known moons with confirmed orbits. References Carme group Moons of Jupiter Irregular satellites 20221015 Discoveries by Scott S. Sheppard Moons with a retrograde orbit