SourceEpochImageVisibility
1936-155
1996APR23 15 GHz 15 GHz
1997JAN11 2 GHz , 8 GHz 2 GHz , 8 GHz
2004FEB15 2 GHz , 8 GHz 2 GHz , 8 GHz
2006SEP13 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008SEP03 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.