SourceEpochImageVisibility
0538+498
3C147
1997JAN11 2 GHz , 8 GHz 2 GHz , 8 GHz
1998JUN24 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2004JUL14 2 GHz , 8 GHz 2 GHz , 8 GHz
2008MAY14 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.