Discovered Appeared Not observed Appeared before discovery Not observed before discovery Returns in the future
162P2026 May 17 162P2020 Dec. 7 162P2015 July 11 162P2010 Mar. 8 162P/2004 TU122004 Nov. 10 162P1999 July 18 1994 Mar. 26 162P1988 Dec. 1