SourceEpochImageVisibility
0235+164
1996APR23 2 GHz , 8 GHz , 15 GHz 2 GHz , 8 GHz , 15 GHz
1997JAN11 2 GHz , 8 GHz 2 GHz , 8 GHz
1999JUN21 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1999AUG02 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2000JAN31 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2000JUL06 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2000OCT23 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2001JAN29 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2002JAN16 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2003JUL09 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2004FEB15 2 GHz , 8 GHz 2 GHz , 8 GHz
2005AUG26 8 GHz 8 GHz
2007AUG01 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008SEP03 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.