The goals of IVS are:

• To provide a service to support geodetic, geophysical and astrometric research and operational activities.
• To interact with the community of users of VLBI products and to integrate VLBI into a global Earth observing system.
• To promote research and development activities in all aspects of the geodetic and astrometric VLBI technique.

Acknowledge IVS:

Whenever your use of IVS data or products results in a publication, please include a citation .

IVS is a service of

		International Association of Geodesy
		International Astronomical Union
		ICSU World Data System

News and Current Events

August Newsletter (August 24)
The August issue of the IVS Newsletter was posted on the website. This issue features the Japanese Analysis Center at GSI.

April Newsletter (April 9)
The April issue of the IVS Newsletter was posted on the website. This issue features the outgoing IVS Technology Coordinator Gino Tuccari.

2023+2024 Biennial Report (March 27)
The 2023+2024 Biennial Report was posted. BR2023+2024 covers the calendar years from January 1, 2023 through December 31, 2024. The Biennial Report is published online only.

December Newsletter (December 15)
The December issue of the IVS Newsletter was posted on the website. This issue features VLBI-related meetings held in Gothenburg, Sweden, and the VGOS Observing Plan for 2026.

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