S/2003 J 1 is a small moon that orbits the planet Jupiter. It was discovered in 2003 and is part of a group of moons known as the Carme group, which are irregularly shaped and have similar orbits. This moon is relatively tiny, with a diameter of about 1.5 kilometers. The moon's surface is likely composed of ice and rock, similar to other moons in its group. S/2003 J 1 has a distant and eccentric orbit around Jupiter, taking approximately 1.5 years to complete one revolution. Its discovery adds to the understanding of the diverse natural satellites surrounding the giant planet.