1           1976-11-21.02  Lustig (1977) 
 2           1976-11-22.95  Scaltriti & Zappala (1978) 
 3           1976-11-24.96  Lustig (1977) 
 4           1976-11-25.82  Scaltriti & Zappala (1978) 
 5           1976-11-27.94  Scaltriti & Zappala (1978) 
 6           1976-11-28.05  Lustig (1977) 
 7           1976-11-28.90  Lustig (1977) 
 8           1976-11-29.86  Lustig (1977) 
 9           1976-12-13.15  Surdej & Surdej (1977) 
10           1976-12-14.13  Surdej & Surdej (1977) 
11           1976-12-15.07  Surdej & Surdej (1977) 
12           1976-12-16.10  Surdej & Surdej (1977) 
13           1983-04-13.98  di Martino & Cacciatori (1984) 
14  1997-03-27--2007-04-18  USNO 
15  2006-09-21--2008-05-05  Catalina 
16  1985-06-12--1998-05-20  La Palma 
17  1990-05-08--1993-02-06  Hipparcos