Analysis of a long-standing series of astronomical time determination at Borowa Góra observatory

Institute of Geodesy and Cartography, Warszawa, Poland
Institute of Geodesy and Cartography, Warszawa, Poland

The paper presents the continuation and extension of research on the analysis of long-standing series of astronomical observations conducted sińce 1963 with the passage instrument at Borowa Góra Geodetic- Geophysical Observatory of the Institute of Geodesy and Cartography, Warsaw.Retained observational data, in particular data series from last 19 years contains the unique information on time yariation of astronomical latitude of Borowa Góra Observatory. Results of а сотріех spectral analysis of a long-standing rotational time data series from 1986.0-2005.5 are presented and discussed in the paper. Characteristics of differential effects estimated and modelled for Borowa Góra Observatory was compared with the respective one based on the ВІН data.

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