1           1980-09-09.23  Schober & Schroll (1983) 
 2           1980-09-09.24  Schober & Schroll (1983) 
 3           1980-09-09.26  Schober & Schroll (1983) 
 4           2006-04-19.83  Hanuš et al. (2013) 
 5           2006-04-21.90  Hanuš et al. (2013) 
 6           2006-04-22.91  Hanuš et al. (2013) 
 7           2009-12-30.02  Ruthroff (2010) 
 8           2010-01-02.99  Ruthroff (2010) 
 9           2010-01-03.15  Ruthroff (2010) 
10           2010-01-07.01  Ruthroff (2010) 
11           2010-01-07.09  Ruthroff (2010) 
12           2010-01-13.01  Ruthroff (2010) 
13           2010-01-13.15  Ruthroff (2010) 
14  1998-10-28--2009-10-31  USNO 
15  1999-05-14--2005-05-01  Catalina 
16  2005-12-05--2010-10-28  Catalina