Archives

VGOS sessions scheduled in Wien

VieSched++, the new VieVS scheduling module, is used by Matthias Schartner for the generation of VGOS schedules for the International VLBI Service for Geodesy and Astrometry (IVS). Scientific investigations on optimizing VGOS schedules are published in Journal of Geodesy.

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PhD Defense Matthias Schartner

On December 17, 2019, Matthias Schartner successfully defended his PhD thesis on scheduling VLBI observations. John Gipson, Axel Nothnagel, and Johannes Böhm challenged him with difficult questions, but Matthias masterfully answered all. Congratulations!

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Visit of NVI group at NASA Goddard Space Flight Center

This week, Matthias Schartner is visiting the VLBI group of the NASA Goddard Space Flight Center in Maryland, USA. The main purpose of this trip to demonstrate and teach how to use VieSched++ and VieVS together to generate high-quality VLBI schedules and Monte-Carlo simulations. Additionally, several other people from USNO and Haystack (MIT) took the […]

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VieVS days – day 3

The third and final day of the VieVS days was devoted to the analysis of VGOS sessions as demonstrated by Markus and the presentation of the VieVS baseband simulator by Jakob. The first VieVS days in our new home – the Freihaus – went very well and will certainly find continuation in 2020.

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VieVS days – day 2

The second day of the VieVS days is dedicated to scheduling with VieSched++. Matthias explains the intricacies of scheduling with his easy-to-use software package.

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VieVS days – day 1

The first day of your “VieVS days” is almost over. A big thanks for our international participants from China, Germany, and Spain as well as to our students which took part. Also a big thanks to today’s lecturers Sigrid Böhm, Helene Wolf, and Johannes Böhm. We had some really interesting exercises and fruitful discussions during […]

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Bachelor presentation Markus Mikschi

On September 10, 2019, Markus Mikschi presented his bachelor thesis on the integration of length-of-day values for the determination of UT1. Depending on the calibration, it is possible to achieve an accuracy of 40 microseconds after a week. It should also be noted here, that his presentation was the last one in our “old meeting […]

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