1           1983-04-10.18  Binzel (1987) 
2           1983-04-11.20  Binzel (1987) 
3           2007-05-18.99  Hanuš et al. (2013) 
4  1998-02-17--2007-06-28  USNO 
5  1999-05-08--2005-01-13  Catalina 
6  2003-05-28--2010-05-09  Catalina