Report for 2011 from the Bordeaux IVS Analysis Center

Report for 2011 from the Bordeaux IVS Analysis CenterThis report summarizes the activities of the Bordeaux IVS Analysis Center during the year 2011. The work focused on (i) regular analysis of the IVS-R1 and IVS-R4 sessions with the GINS software package; (ii) systematic VLBI imaging of the RDV sessions and calculation of the corresponding source structure index and compactness values; (iii) imaging of the sources observed during the 2009 Inter- national Year of Astronomy IVS observing session; and (iv) continuation of our VLBI observational program to identify optically-bright radio sources suitable for the link with the future Gaia frame. Also of importance is the enhancement of the IVS Live Web site which now comprises all IVS sessions back to 2003, allowing one to search past observations for session-specific information (e.g. sources or stations)