1           1977-08-08.17  Tedesco (1979) 
 2           1989-02-03.16  Slivan & Binzel (1996) 
 3           1989-02-04.17  Slivan & Binzel (1996) 
 4           1989-02-06.13  Slivan & Binzel (1996) 
 5           1990-02-21.31  Slivan & Binzel (1996) 
 6           1990-02-22.35  Slivan & Binzel (1996) 
 7           1990-02-23.39  Slivan & Binzel (1996) 
 8           1992-10-01.17  Slivan & Binzel (1996) 
 9           1992-10-02.16  Slivan & Binzel (1996) 
10           1992-10-03.14  Slivan & Binzel (1996) 
11           1992-10-04.09  Slivan & Binzel (1996) 
12           1992-10-06.27  Slivan & Binzel (1996) 
13           1993-11-10.26  Slivan & Binzel (1996) 
14           1993-11-11.27  Slivan & Binzel (1996) 
15           1993-11-13.20  Slivan & Binzel (1996) 
16           1993-11-17.31  Slivan & Binzel (1996) 
17           2007-11-07.28  B. D. Warner (2008) 
18           2007-11-08.29  B. D. Warner (2008) 
19           2007-11-09.29  B. D. Warner (2008) 
20  1998-11-02--2004-03-28  USNO