Principal Investigator Alan Rogers
Project Website http://ivscc.gsfc.nasa.gov/index.html
The International VLBI Service for Geodesy and Astrometry (IVS) is an international collaboration of organizations which operate or support Very Long Baseline Interferometry (VLBI) components. IVS provides a service which supports geodetic and astrometric work on reference systems, Earth science research, and operational activities.
As a member of the IVS, we operate the Mark IV Correlator as one of six correlators around the world to process VLBI data. The Westford Radio Telescope also participates in many VLBI operations.