1           1979-04-30.28  Debehogne & Zappala (1980) 
 2           1979-05-01.05  Debehogne & Zappala (1980) 
 3           1979-05-03.33  Debehogne & Zappala (1980) 
 4           1979-05-04.22  Debehogne & Zappala (1980) 
 5           1980-11-06.19  Harris & Young (1989) 
 6           1980-11-16.42  Harris & Young (1989) 
 7           1980-12-15.27  Harris & Young (1989) 
 8  1982-03-19--1982-03-23  Carlsson & Lagerkvist (1983) 
 9           2008-03-07.36  Pilcher & Higgins (2008) 
10           2008-03-17.56  Pilcher & Higgins (2008) 
11           2008-03-18.59  Pilcher & Higgins (2008) 
12           2008-03-19.58  Pilcher & Higgins (2008) 
13           2008-03-21.34  Pilcher & Higgins (2008) 
14           2008-03-24.31  Pilcher & Higgins (2008) 
15           2008-03-26.49  Pilcher & Higgins (2008) 
16           2008-03-28.60  Pilcher & Higgins (2008) 
17           2008-03-31.29  Pilcher & Higgins (2008) 
18           2008-04-01.54  Pilcher & Higgins (2008) 
19           2008-04-03.56  Pilcher & Higgins (2008) 
20           2008-04-21.24  Pilcher & Higgins (2008) 
21           2009-08-17.36  Pilcher & Higgins 
22           2009-08-30.35  Pilcher & Higgins 
23           2009-09-09.35  Pilcher & Higgins 
24           2010-11-21.40  Pilcher 
25           2010-11-22.40  Pilcher 
26           2010-12-10.44  Pilcher 
27           2010-12-20.35  Pilcher 
28           2010-12-21.41  Pilcher 
29           2011-01-13.33  Pilcher 
30           2011-01-31.16  Pilcher 
31  1998-07-30--2011-02-23  USNO