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International VLBI Service for Geodesy and Astrometry

International VLBI Service for Geodesy and Astrometry

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VLBI standards update: VEX2

The latest VEX2 definition, courtesy NRAO, is now mirrored on this site: https://vlbi.org/vlbi-standards/vex/.

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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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International VLBI Service for Geodesy and Astrometry