1           1980-08-20.35  Harris & Young (1989) 
2           1980-08-21.33  Harris & Young (1989) 
3           1980-09-16.05  Hanslmeier 
4           1980-09-16.93  Hanslmeier 
5  1998-08-02--2007-11-13  USNO 
6  2006-11-13--2008-03-24  Catalina