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| Titel |
The observations of the local vertical variations with the new CCD zenith tube at OndÅejov Observatory |
| VerfasserIn |
Cyril Ron, Vojtěch Štefka, Jan Vondrák, Yavor Chapanov |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250040120
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| Zusammenfassung |
| The reconstruction of the Photographic Zenith Tube (PZT) at Astronomical Observatory
OndÅejov was finished in summer 2007. The main improvement of the instrument consists in
the replacement of the photographic plate with the CCD chip, and a completely new
electronic control system. The accuracy of the instrument has been improved and also the
number of observations has increased substantially. The intensive observations during last 30
months were corrected for the instantaneous Earth orientation parameters from IERS EOC04
series and for the known tidal effect to get the series of non-tidal variations of local vertical.
The results and a comparison with the gravimetric observations of absolute and
super-conducting gravimeters at the nearby station Pecný (GOPE) will be discussed. |
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