SourceEpochImageVisibility
2126-158
1996APR23 15 GHz 15 GHz
1997JAN11 2 GHz , 8 GHz 2 GHz , 8 GHz
1997DEC17 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+
2007JUN26 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008JAN23 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008SEP03 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2009JAN21 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2009MAY13 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.