IVS

International VLBI Service for Geodesy and Astrometry

International VLBI Service for Geodesy and Astrometry

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VLBI Standard Interface (VSI)

Introduction to VSI

VSI Introduction and Explanation [ARCHIVE] (html)

VSI-H Introduction (pdf)

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The header image for this site will change periodically to highlight the many IVS sites worldwide. The current image of Ny-Ålesund is courtesy David Mayer. Please send suggestions to ivs@mit.edu and include subject and caption. Thanks!

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VLBI in the news

Climate change is messing with time more than previously thought, scientists find

NASA's Space Geodesy Project Mapping Out a Bright Future

How Satellites and Telescopes are Tracking the Effects of Global Change, Down to the Millimeter

vlbi.org

VLBI standards

VLBI standards for scientists and engineers

International VLBI Service for Geodesy and Astrometry