SourceEpochImageVisibility
1432+200
1995APR12 2 GHz , 8 GHz 2 GHz , 8 GHz
2000JAN31 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2007JUN26 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
2009MAY13 2 GHz+ , 8 GHz+ 2 GHz+ , 8 GHz+
A "+" after the frequency indicates VLBA+ observations.