1 1980-07-19.39 Harris & Young (1989) 2 1980-07-20.36 Harris & Young (1989) 3 1980-07-21.33 Harris & Young (1989) 4 1980-08-14.33 Harris & Young (1989) 5 1980-08-21.32 Harris & Young (1989) 6 1989-12-04.19 Schober et al. (1994) 7 1989-12-05.20 Schober et al. (1994) 8 1989-12-06.17 Schober et al. (1994) 9 1989-12-07.20 Schober et al. (1994) 10 1989-12-08.16 Schober et al. (1994) 11 1998-11-15--2008-01-31 USNO 12 2004-03-16--2008-04-04 Catalina