1           1974-02-18.92  Lagerkvist (1978) 
 2           2012-01-22.86  Strabla et al. (2012) 
 3           2012-01-25.88  Strabla et al. (2012) 
 4           2012-01-30.79  Strabla et al. (2012) 
 5           2012-01-25.86  Strabla et al. (2012) 
 6           2012-01-26.74  Strabla et al. (2012) 
 7           2012-01-29.79  Strabla et al. (2012) 
 8           2012-01-30.78  Strabla et al. (2012) 
 9           2012-02-14.12  Strabla et al. (2012) 
10           2012-02-15.20  Strabla et al. (2012) 
11           2012-02-18.21  Strabla et al. (2012) 
12           2012-02-19.17  Strabla et al. (2012) 
13  1997-03-27--2008-05-17  USNO 
14  1999-10-07--2004-12-21  Catalina 
15  2005-10-23--2010-09-29  Catalina