SourceEpochImageVisibility
2136+141
1995APR12 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+
1998AUG10 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
1999AUG02 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2002JAN16 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2004FEB15 2 GHz , 8 GHz 2 GHz , 8 GHz
2005AUG26 8 GHz 8 GHz
2006JUL11 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+
2008JAN23 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2008MAY14 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+
A "+" after the frequency indicates VLBA+ observations.