LEO satellites and antenna performance investigations with the Onsala Twin Telescopes
Övrigt konferensbidrag, 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.
holography
Onsala Twin Telescopes
LEO satellite signals
Författare
Gary Hovey
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Mugundhan Vijayaraghavan
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Federico Di Vruno
SKA Organisation
Rüdiger Haas
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Karine le Bail
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
Lim Chin Chuan
Chalmers, Rymd-, geo- och miljövetenskap, Onsala rymdobservatorium
13th General Meeting of the International VLBI Service for Geodesy and Astrometry
Tsukuba, Japan,
Tsukuba, Japan,
Ämneskategorier (SSIF 2025)
Geovetenskap och relaterad miljövetenskap
Elektroteknik och elektronik