SourceEpochImageVisibility
1706-174
1996APR23 15 GHz 15 GHz
1997JAN10 2 GHz , 8 GHz 2 GHz , 8 GHz
1998DEC21 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2006SEP13 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2007JAN24 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.