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Accuracy analysis of vertical deflection Accuracy analysis of vertical deflection... - PDF Document (161 K)
Citation Hirt, Christian and Seeber, Guenter. 2008. Accuracy analysis of vertical deflection data observed with the Hannover Digital Zenith Camera System TZK2-D. Journal of Geodesy. 82 (6): pp. 347-356.
Author Hirt, Christian
Author Seeber, G.
Title Accuracy analysis of vertical deflection data observed with the Hannover Digital Zenith Camera System TZK2-D
Date 2008
Abstract This paper analyses the accuracy of vertical deflection measurements carried out with the Digital Zenith Camera System TZK2-D, an astrogeodetic state-of-the-art instrumentation developed at the University of Hannover. During 107 nights over a period of 3.5 years, the system was used for repeated vertical deflection observations at a selected station in Hannover. The acquired data set consists of about 27,300 single measurements and covers 276 h of observation time, respectively. For the data collected at an earlier stage of development (2003 to 2004), the accuracy of the nightly mean values has been found to be about 0".10-0".12. Due to applying a refined observation strategy since 2005, the accuracy of the vertical deflection measurements was enhanced into the unprecedented range of 0".05-0".08. Accessing the accuracy level of 0".05 requires usually 1 h of observational data, while the 0".08 accuracy level is attained after 20 min measurement time. In comparison to the analogue era of geodetic astronomy, the accuracy of vertical deflection observations is significantly improved by about one order of magnitude.
Subjects Digital Zenith Camera System (DZCS); vertical deflection; accuracy
Department Department of Spatial Sciences
Additional Information If you wish to contact a Curtin researcher associated with this document, you may obtain an email address from http://findservice.curtin.edu.au/searchcurtinstaff.html.
The original publication is available at : http:www.springerlink.com
Alternative Location http://dx.doi.org/10.1007/s00190-007-0184-7
Access Status open access - see also Alternative Location
Doc. Type Journal Article
PID 135160
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Research Papers > by Document Type > Articles

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