1           1979-03-24.42  Harris & Young (1989) 
 2           1979-03-25.26  Harris & Young (1989) 
 3           1995-09-30.86  Denchev et al. (1998) 
 4           1995-10-01.97  Denchev et al. (1998) 
 5           1995-10-02.85  Denchev et al. (1998) 
 6           2000-11-16.71  Wang & Shi (2002) 
 7           2008-07-29.38  F. Pilcher (2009) 
 8           2008-07-30.34  F. Pilcher (2009) 
 9           2008-08-03.33  F. Pilcher (2009) 
10           2008-08-23.29  F. Pilcher (2009) 
11           2008-09-02.30  F. Pilcher (2009) 
12           2008-09-19.17  F. Pilcher (2009) 
13           2008-09-23.18  F. Pilcher (2009) 
14           2008-09-30.17  F. Pilcher (2009) 
15           2009-11-19.32  Pilcher 
16           2010-01-04.21  Pilcher 
17           2010-01-09.21  Pilcher 
18           2011-03-17.39  Pilcher 
19           2011-03-26.35  Pilcher 
20           2011-03-29.35  Pilcher 
21           2011-04-08.32  Pilcher 
22           2011-04-26.26  Pilcher 
23           2012-06-04.37  Pilcher 
24           2012-06-13.36  Pilcher 
25           2012-06-15.36  Pilcher 
26           2012-06-18.37  Pilcher 
27           2012-06-20.34  Pilcher 
28           2012-06-25.34  Pilcher 
29           2012-06-29.35  Pilcher 
30  1998-04-19--2010-02-26  USNO