1           1982-03-23.29  Binzel & Mulholland (1983) 
2           1982-03-23.33  Binzel & Mulholland (1983) 
3           1982-03-23.27  Binzel & Mulholland (1983) 
4           1982-03-23.32  Binzel & Mulholland (1983) 
5           1982-03-23.37  Binzel & Mulholland (1983) 
6  1998-08-19--2012-04-19  Lowell