SourceEpochImageVisibility
2252-089
1995APR12 2 GHz , 8 GHz 2 GHz , 8 GHz
1996APR23 15 GHz 15 GHz
1999APR15 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2001MAY09 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.