SourceEpochImageVisibility
1504-166
1996APR23 15 GHz 15 GHz
1997JAN10 2 GHz , 8 GHz 2 GHz , 8 GHz
1997SEP08 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1999JUN21 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.