Evaluation of Terrestrial and Celestial Reference Frames Estimated From VGOS Data .
Paper in proceeding, 2025
We use the VGOS data from 2017 until the beginning of 2025 to estimate a Terrestrial Reference Frame (TRF) and a Celestial Reference Frame (CRF). These reference frames are then compared to ITRF2020 u2023 and ICRF3, as well as to a TRF/CRF solution calculated based on legacy S/X VLBI data up to the beginning of 2025. For the TRF, we find agreements on the level of a few millimeters for the VGOS stations with the longest observation spans. For the CRF, the differences are in general a few 100 µas.
Terrestrial Reference Frame
VLBI
VGOS
Celestial Reference Frame
Author
Tobias Nilsson
The Swedish Mapping, Cadastral and Land Registration Authority
Rüdiger Haas
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Karine le Bail
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Proceedings of the 27th European VLBI Group for Geodesy and Astrometry Working Meeting
59-63
27th European VLBI Group for Geodesy and Astrometry Working Meeting
Matera, Italy,
Matera, Italy,
Driving Forces
Sustainable development
Roots
Basic sciences
Subject Categories (SSIF 2025)
Other Earth Sciences
Infrastructure
Onsala Space Observatory
DOI
10.5281/zenodo.18088484