News

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 March 2024 at the Tsukuba Congress Center, Japan. The following topics were presented by our group on-site: Geodetic analysis of K band VLBI observations until 2024.0 (Hana Krásná et al.) Q band (43 GHz) celestial […]

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15th DiFX Users and Developers Meeting 2023

Jakob attended the “15th DiFX Users and Developers Meeting” in Socorro, New Mexico, USA, from September 11 to 15, 2023. This annual meeting is for the future planning, improvement, and documentation of the high-performance DiFX software. The Vienna Correlation Center uses DiFX in its operational and scientific work to process (correlate) raw VLBI data. The […]

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Vienna VLBI Group at EVGA 2023

In the week of 11 to 15 June 2023 the 26th European VLBI Group for Geodesy and Astrometry (EVGA) Working Meeting took place in Bad Kötzting, Germany, near the collocation station Wettzell. The Vienna VLBI Group participated with the following presentations: Earth orientation parameters estimated from recent Australian mixed-mode and Southern Intensive sessions (Sigrid Böhm […]

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IVS Technical Operations Workshop 2023

  • 2023-06-06
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The 12th IVS Technical Operations Workshop (TOW) took place from April 30 through May 4 2023 at MIT Haystack Observatory in Westford, Massachussetts, USA. It was directly followed by a Correlator Workshop on May 4-5. Frédéric Jaron gave a lecture on the application of PolConvert to geodetic VLBI (VGOS) data at the TOW (see the […]

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Bologna VLBI: Life begins at 40!

  • 2023-05-30
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In the week of 22 to 26 May 2023, the radio astronomical conference of the VLBI community took place in Bologna, Italy on the occasion of the 40th anniversary of the 32-m radio dish in Medicina. Hana Krásná was invited by the Scientific Organizing Committee to give a keynote talk about the relevance and unique […]

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Vienna VLBI Group at REFAG 2022

  • 2022-11-09
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In the week of 17 to 20 October 2022, the IAG International Symposium on Reference Frames for Applications in Geosciences (REFAG) took place in Thessaloniki, Greece. There have been four contributions from the Vienna VLBI group1 and one from the Federal Office of Metrology and Surveying (BEV)2: Adjustment of orbital elements of Galileo satellite arcs […]

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Paper on the evaluation of satellite observations with VLBI published

The installation of a VLBI transmitter on Galileo satellites would allow observing satellites besides quasars with VLBI telescopes. Three additional Dilution of Precision (DOP) factors were introduced which are representing the sensitivity of a satellite observation towards the components of the satellite position in the local orbital. These factors were used for evaluating observations to […]

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