by Lisa Kern | Apr 24, 2025 | Conference
From 6 to 11 April 2025, the 27th European VLBI Group for Geodesy and Astrometry (EVGA) Working Meeting was held in Matera, Italy. The Vienna VLBI Group contributed with the following presentations/posters: Effective Frequencies And Ionosphere Calibration Of Legacy...
by Lisa Kern | Mar 31, 2025 | Meeting
On Friday, March 28, 2025, Frederic Jaron was invited as a speaker in the Seminar of the Department of Theoretical Physics and Astrophysics at the Masaryk University in Brno, Czech Republic. The subject of the talk was his research on the gamma-ray emitting binary...
by Lisa Kern | Mar 31, 2025 | Publication
An unexpected VLBI scale drift has been observed in the latest realization of the ITRS, ITRF2020, beginning shortly after epoch 2013.75 and continuing through 2021.0. A detailed analysis of the station motion model for NYALES20 (Svalbard, Norway) revealed a linear...
by Lisa Kern | Nov 6, 2024 | Conference
The 9th International VLBI Technology Workshop was held from October 20 to 23, 2024 at MIT Haystack Observatory, Westford, MA, USA. The scope of this conference was hardware and software development related to VLBI technology. Frederic Jaron contributed three talks on...
by Lisa Kern | Oct 18, 2024 | Uncategorized
The UN-GGCE Partnership Program launched in June 2024 to recognize the exceptional commitment and significant contributions Member States, universities, and organizations have made to the science of geodesy and strengthening the global geodesy supply chain. Since July...
by Lisa Kern | Sep 24, 2024 | Conference
The 16th DiFX Users and Developers Meeting was held in Vienna from September 9 to 13, 2024. The first two days were devoted to the DiFX Users at the Federal Office of Metrology and Surveying (BEV) with many interesting presentations also from our Vienna VLBI group....
by Lisa Kern | Sep 16, 2024 | Conference
The 16th European VLBI Network (EVN) Symposium took place in Bonn from September 2nd to 6th, 2024. Frédéric Jaron presented a poster summarizing recent results from a project about the mitigation of source structure in geodetic VLBI. The conference was an excellent...
by Lisa Kern | Jun 13, 2024 | Excursion
On June 13, the excursion to the Geodetic Observatory Wettzell organised by the Vienna VLBI Group took place. Students and some staff members participated in the trip to the Bavarian Forest. At the observatory, we were able to inspect three VLBI antennas, two SLR/LLR...
by Lisa Kern | May 2, 2024 | Publication
The new-generation geodetic radio telescopes observe two orthogonal linear polarization directions. Calibration of the gain differences between the two polarizers is necessary to maximize the signal-to-noise ratio of observations. This study investigates these...
by Lisa Kern | Apr 22, 2024 | Conference
The General Assembly 2024 of the European Geosciences Union (EGU) took place in Vienna from April 14th to 19th. The Vienna VLBI Group proudly contributed through the following presentations and posters: Benefits for the terrestrial reference frame with VLBI...
