1  1998-06-19--2007-12-15  USNO 
 2  2005-05-10--2008-02-10  Catalina 
 3  1999-09-18--2005-05-02  Catalina 
 4  1985-03-24--1997-05-23  La Palma 
 5  1990-06-10--1992-04-27  Hipparcos 
 6           1962-12-26.69  Chang & Chang (1963) 
 7           1962-12-30.62  Chang & Chang (1963) 
 8           1963-01-01.57  Chang & Chang (1963) 
 9           1989-05-03.33  Licandro et al. (1990) 
10           1989-05-06.38  Licandro et al. (1990) 
11           2006-05-08.05  
12           2006-05-09.05  
13           2006-05-10.02  
14           2006-05-11.01  
15           2006-05-25.98  
16           2006-05-31.00  
17           2006-06-01.00  
18           2006-06-03.99  
19           2006-06-04.98  
20           2006-06-06.00  
21           2006-06-07.88  
22           2006-06-08.97  
23           2006-06-09.94  
24           2006-06-15.98  
25           2007-09-13.38  
26           2007-10-09.32  
27           2007-10-27.29  
28           2009-01-12.38  
29           2009-01-16.38  
30           2009-02-04.34  
31           2009-02-21.19  
32           2009-03-08.17  
33           2009-05-05.89  
34           2009-05-06.91  
35           2013-03-06.27  
36           2013-03-06.27  
37           2017-01-11.00  
38           2019-08-20.22