LEO satellites and antenna performance investigations with the Onsala Twin Telescopes
Paper in proceeding, 2024
The advent of Low Earth Orbit (LEO) satellite constellations requires an assessment of their impact on astronomical and geodetic observations. This
study investigates the signals from the Starlink constellation using the Onsala Twin Telescopes (OTTs). Additionally, holographic measurements using geostationary broadcast satellites have been used to characterize the OTTs, revealing that the feed seems not to be optimally illuminating the ring-focus antenna at 11 GHz. These initial results demonstrate the benefit of checking the entire antenna optical path with holography.
study investigates the signals from the Starlink constellation using the Onsala Twin Telescopes (OTTs). Additionally, holographic measurements using geostationary broadcast satellites have been used to characterize the OTTs, revealing that the feed seems not to be optimally illuminating the ring-focus antenna at 11 GHz. These initial results demonstrate the benefit of checking the entire antenna optical path with holography.
LEO satellite signals
holography
Onsala Twin Telescopes
Author
Gary Hovey
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Mugundhan Vijayaraghavan
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Federico Di Vruno
SKA Organisation
Rüdiger Haas
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Karine le Bail
Chalmers, Space, Earth and Environment, Onsala Space Observatory
Lim Chin Chuan
Chalmers, Space, Earth and Environment, Onsala Space Observatory
International VLBI Service for Geodesy and Astrometry 2024 General Meeting Proceedings
11-15
13th General Meeting of the International VLBI Service for Geodesy and Astrometry
Tsukuba, Japan,
Tsukuba, Japan,
Subject Categories (SSIF 2025)
Earth and Related Environmental Sciences
Electrical Engineering, Electronic Engineering, Information Engineering