Report on New VGOS Frequency Sequences Test Observations
Paper i proceeding, 2025
The IVS VGOS Technical Committee (IVS VTC) discussed several times on how to maximize the benefits of VGOS for geodesy and astrometry. Unused potential for improvementwas identified in (a) increasing the synthesized bandwidth per VGOS observing band from 480 to 1024 MHz, and (b) distributing the four VGOS frequency bands between 3 and 14 GHz instead of only up to 10.6 GHz as is currently the case. In order to demonstrate the feasibility and possible benefits by using that potential, a series of fringe tests and test sessions were carried out in late 2024, and further tests were performed in early 2025. The results of these tests are expected to provide important input to the efforts of the IVS to anchor the observed frequency channels in the ITU Radio Regulations, so that in the future more consideration could be given to VGOS radio telescopes with regard to unwanted radio radiation. To this end, the optimum VGOS frequency configurations are sought as they are to be used in the long term. We report on the performance of these sessions and present preliminary results and recommendations for suitable frequency setups, where possible.
VLBI, VGOS
Författare
Simone Bernhart
Bundesamt für Kartographie und Geodäsie (BKG)
Reichert GmbH
Max-Planck-Gesellschaft
Esther Azcue Infanzón
Instituto Geografico Nacional España
Ruben Bolano Gonzalez
Kartverket
Lim Chin Chuan
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Y. K. Choi
Max-Planck-Gesellschaft
Reichert GmbH
Bundesamt für Kartographie und Geodäsie (BKG)
Pablo de Vicente
Observatorio de Yebes (IGN)
A. García-Castellano
Atlantiska nätverket för geodynamiska och rymdstationer (RAEGE)
Susana García Espada
Kartverket
J. González García
Observatorio de Yebes (IGN)
Rüdiger Haas
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Hayo Hase
Bundesamt für Kartographie und Geodäsie (BKG)
Frédéric Jaron
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
J. A. López-Pérez
Observatorio de Yebes (IGN)
Jamie McCallum
University of Tasmania
Lucia McCallum
University of Tasmania
M. C. S. Moreira
Atlantiska nätverket för geodynamiska och rymdstationer (RAEGE)
Bill Petrachenko
Natural Resources Canada
C. Plötz
Bundesamt für Kartographie und Geodäsie (BKG)
Jonathan Quick
Hartebeesthoek Radio Astronomy Observatory
Matthias Schartner
Eidgenössische Technische Hochschule Zürich (ETH)
Proceedings of the 27th European VLBI Group for Geodesy and Astrometry Working Meeting
25-29
27th European VLBI Group for Geodesy and Astrometry Working Meeting
Matera, Italy,
Matera, Italy,
Drivkrafter
Hållbar utveckling
Fundament
Grundläggande vetenskaper
Ämneskategorier (SSIF 2025)
Annan geovetenskap
Astronomi, astrofysik och kosmologi
Infrastruktur
Onsala rymdobservatorium
DOI
10.5281/zenodo.18088484