Simplify the following text for a Grade 5 native English-speaking person.
Original: It was discovered by John J. Kavelaars et al . on September 23 , 2000 , and given the temporary designation S\/2000 S 4 .
Simplified: It was found by John J. Kavelaars , et al . on September 23 , 2000 , and given the designation S\/2000 S 4 .