• Vienna Center for VLBI

    The Vienna Center for VLBI is a joint effort by TU Wien and Austria's Federal Office of Metrology and Surveying (BEV).

    READ MORE
  • Geodetic Very Long Baseline Interferometry

    Very Long Baseline Interferometry (VLBI) is a microwave-based technique that evolved from radio astronomy in the early 1970s. Nowadays, VLBI is a major space-geodetic technique, indispensable for geodesy.

    read more
  • Unique Geodetic Products

    VLBI delivers unique geodetic products that play indispensable roles for science and society.

    READ MORE
  • Where are we?

    VLBI uniquely contributes to the most precise and stable reference frames, which are fundamental for numerous applications - from navigation to global change monitoring.

    READ MORE
  • Precise timing!

    VLBI is the only operational technique to determine the Universal Time UT1 that reflects the Earth's rotation behavior. Precisely knowing this parameter is essentiual for navigation systems, such as ESA's Galileo.

    READ MORE
  • Extragalactic benchmarks

    Bright radio sources located at the edge of the universe - billions of light-years from Earth - serve as ultra-stable benchmarks that are observed by VLBI.

    READ MORE

Scheduling: generating highly sophisticated VLBI observation schedules

Our new scheduling software VieSched++ smoothly connects observation planning with simulations to generate the best schedules for your specific purposes.

Scheduling Center

Correlation: Processing raw data records to derive delay observables

The VSC has the capacities to process vast amounts of raw observation data. The derived quantities are the basis for geodetic parameter estimation.

Correlation Center

Analysis: Estimation of geodetic products

Using our in-house software suite VieVS for the analysis of VLBI sessions gives us great flexibility at estimating high quality geodetic parameters.

Analysis Center

Latest News

Paper on Cross-Polarization Gain Calibration of Linearly Polarized VLBI Antennas published

Paper on Cross-Polarization Gain Calibration of Linearly Polarized VLBI Antennas published

The new-generation geodetic radio telescopes observe two orthogonal linear polarization directions. Calibration of the gain differences between the two polarizers…

Read more
Vienna VLBI Group at EGU 2024

Vienna VLBI Group at EGU 2024

The General Assembly 2024 of the European Geosciences Union (EGU) took place in Vienna from April 14th to 19th. The…

Read more
Vienna VLBI Group at IVS General Meeting 2024

Vienna VLBI Group at IVS General Meeting 2024

The 13th General Meeting of the International VLBI Service for Geodesy and Astrometry (IVS) took place from 4 to 9…

Read more

Team Members

Hana Krásná

Assistant Professor

Johannes Böhm

Professor

Sigrid Böhm

Senior Scientist

Frédéric Jaron

Postdoc Researcher

Axel Nothnagel

Consultant

Lisa Kern

University Assistant

Helene Wolf

Project-Assistant

David Mayer

Researcher

Jakob Gruber

Researcher

Olivia Panzenböck

Student Assistant

Leo Baldreich

Student Assistant

Peter Urban

Student Assistant

Sofie Steinmetz

Student assistant