Input (grade 6): It was discovered by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, et al. in 2003, and was provisionally designated S\/2003 J 21.
Output (grade 3): It was found by a team of astronomers from the University of Hawaii led by Scott S. Sheppard, et al. in 2003, and was designated S\/2003 J 21.