Operational studies of the Onsala Twin Telescopes
Paper in proceeding, 2025

We present an overview of recent operational studies at the Onsala Space Observatory, focusing on the Onsala Twin Telescopes. The overview includes the so-called single-dish Tsys measurements covering the entire VGOS frequency band from 3 to 15 GHz, measurements with invar systems installed
in late 2023, monitoring pcal amplitudes and phases, and first test observations using potential future frequency setups for observations of the European Space Agency (ESA) Genesis satellite.

Genesis

Onsala

VGOS

Twin Telescopes

Author

Lim Chin Chuan

Chalmers, Space, Earth and Environment, Onsala Space Observatory

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

91-95

27th European VLBI Group for Geodesy and Astrometry Working Meeting
Matera, Italy,

Subject Categories (SSIF 2025)

Multidisciplinary Geosciences

Infrastructure

Onsala Space Observatory

DOI

10.5281/zenodo.18088484

More information

Created

1/8/2026 1