The links below provide quick access to a variety of source surveys that have been carried out with the VLBA, sometimes using other VLBI telescopes as well. The VLBA calibrator survey and the USNO Radio Reference Frame Image Database are particularly useful for finding reference sources for phase-referencing observations.

• VLBA Calibrator Survey
• MOJAVE Survey
• VLBA 2cm Survey (predecessor to MOJAVE)
• VLBA Imaging and Polarimetry Survey
• 6cm VLBA VSOP-Prelaunch Survey
• USNO Radio Reference Frame Image Database
• VLBA Fringe Finder Survey
• Caltech-Jodrell Bank Surveys
• Cumulative List of VLBA Observed Sources(observations longer than 1 hr)
• VLA/VLBA Polarization and Flux Monitoring

The National Radio Astronomy Observatory is a facility of the National Science Foundation operated under cooperative agreement by Associated Universities, Inc.