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Measurements of horizontal motion of the station Simeiz using VLBI

Measurements of horizontal motion of the station Simeiz using VLBI

Estimates of the horizontal velocity of the radioastronomical station Simeiz were obtained using VLSI observations made under geodynamics programs during the years 1994—2000. The complete set of 3 million VLBI observations was analyzed, and it was found that the station moves with respect to the Eur...

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Bibliographic Details
Main Authors: Petrov, L.Yu., Voivach, O.E., Nesterov, N.S.
Format: Article
Language:English
Published: Головна астрономічна обсерваторія НАН України 2001
Series:Кинематика и физика небесных тел
Subjects:
Вращение Земли и геодинамика
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/149953
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Summary:Estimates of the horizontal velocity of the radioastronomical station Simeiz were obtained using VLSI observations made under geodynamics programs during the years 1994—2000. The complete set of 3 million VLBI observations was analyzed, and it was found that the station moves with respect to the Eurasian tectonic plate, considered as rigid, with a rate of 2.8±0.9 mm/yr in the north-east direction. Possible local systematic effects were thoroughly studied and the reliability of the estimate of uncertainly of the results was evaluated. We investigated stability of the station with respect to local marks and revealed that an inclination of the azimuthal axis of the telescope increases with velocity 2.6". The estimate of vertical motion of the station, 2.6±3.0 mm/yr, is not statistically significant.

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