SourceEpochImageVisibility
0319+121
1997JAN11 2 GHz , 8 GHz 2 GHz , 8 GHz
1999APR15 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008SEP03 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.