IVS (VLBI) Analysis Center

USNO's CRF department operates one of the International VLBI Service for Geodesy and Astrometry (IVS) Analysis Centers for Very Long Baseline Interferometry (VLBI) observations. USNO’s IVS Analysis Center focuses on the analysis of VLBI data; the primary services provided are analysis of diurnal sessions and production of periodic VLBI global solutions for estimation of the Terrestrial Reference Frame (TRF), the Celestial Reference Frame (CRF), and Earth Orientation Parameters (EOP). USNO’s IVS Analysis Center activities also include supporting development and maintenance of the International Celestial Reference Frame (ICRF) and providing analytic services covering specific center data products.

Along the left of the page, we provide access to USNO IVS Analysis Center products. Below, you will find links to the IVS. For more information on the activities of USNO’s IVS (VLBI) Analysis Center, click here.

IVS Analysis Centers
Most recent USNO IVS (VLBI) Analysis Center annual report