1           1984-05-11.22  Weidenschilling et al. (1990) 
2           1989-07-03.32  Hutton (1990) 
3           1989-07-03.20  Hutton (1990) 
4           1989-07-03.25  Hutton (1990) 
5  1998-08-19--2008-03-12  USNO 
6  2004-03-15--2008-05-08  Catalina 
7  1993-04-26--1997-08-04  La Palma