It was discovered in 1998 , by the Deep Ecliptic Survey ( DES ) .
1998 WW ( also written 1998 WW31 ) is a double Kuiper belt object .
WW was discovered in 1998 , by the Deep Ecliptic Survey ( DES ) .
1998 WW ( also written 1998 WW31 ) is a double Kuiper belt object .