SourceEpochImageVisibility
1418+546
1997JAN10 2 GHz , 8 GHz 2 GHz , 8 GHz
1997JAN30 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1997MAR31 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1997MAY19 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1997JUL24 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1997SEP08 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1997DEC17 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1998JUN24 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1999JUN21 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2000OCT23 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2004JUL14 2 GHz , 8 GHz 2 GHz , 8 GHz
2005AUG26 8 GHz 8 GHz
2006SEP13 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2007JUN26 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2007AUG01 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008JAN23 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008MAY14 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.