dc.contributor.author
Albayrak, Muge
dc.contributor.author
Halicioglu, Kerem
dc.contributor.author
Ozludemir, Mustafa Tevfik
dc.contributor.author
Basoglu, Burak
dc.contributor.author
Deniz, Rasim
dc.contributor.author
Tyler, Allison R. B.
dc.contributor.author
Aref, Mohammed Mohseni
dc.date.accessioned
2020-02-07T12:43:03Z
dc.date.available
2020-02-07T12:43:03Z
dc.identifier.uri
https://refubium.fu-berlin.de/handle/fub188/26619
dc.identifier.uri
http://dx.doi.org/10.17169/refubium-26376
dc.description.abstract
The Digital Zenith Camera Systems (DZCSs) are dedicated astrogeodetic instruments used to obtain highly accurate astrogeodetic vertical deflection (VD) data. The first Turkish DZCS, the Astrogeodetic Camera System (ACSYS), was developed in Istanbul, Turkey in 2015. The ACSYS was capable of determining astrogeodetic VDs with an accuracy of ~0.3 arcseconds. However, it had some limitations in observation duration: because of the semi-automated mechanical design, levelling the system towards zenith was a time-consuming process. Since 2016, the ACSYS has been modernized through system upgrades and new technological components. In this paper, we describe the instrument design of the new DZCS-ACSYS2-observation procedures, evaluation of the test data and calculations of these data. The preliminary ACSYS2 astrogeodetic test observations were conducted at Istanbul Technical University (ITU) test station. The standard deviation results of the repeated observations reveal a VD measurement precision of ~0.3 arcseconds for both the North-South and East-West components. To investigate the accuracy of the system, a lightweight total station based-geodetic system-QDaedalus-was also used at the ITU test station. The comparison of the VDs data between ACSYS2 and QDaedalus system shows that the ACSYS2 can produce reliable VDs data.
en
dc.rights.uri
https://creativecommons.org/licenses/by/4.0/
dc.subject
Vertical deflections
en
dc.subject
Astrogeodetic Measurement
en
dc.subject
Geodetic instrumentation
en
dc.subject
Digital zenith camera system
en
dc.subject
Accuracy and precision
en
dc.subject.ddc
500 Naturwissenschaften und Mathematik::510 Mathematik::510 Mathematik
dc.title
The use of the automated digital zenith camera system in Istanbul for the determination of astrogeodetic vertical deflection
dc.type
Wissenschaftlicher Artikel
dcterms.bibliographicCitation.doi
10.1590/s1982-21702019000400025
dcterms.bibliographicCitation.journaltitle
Boletim de Ciências Geodésicas
dcterms.bibliographicCitation.number
4
dcterms.bibliographicCitation.volume
25
dcterms.bibliographicCitation.url
http://dx.doi.org/10.1590/s1982-21702019000400025
refubium.affiliation
Mathematik und Informatik
refubium.resourceType.isindependentpub
no
dcterms.accessRights.openaire
open access
dcterms.isPartOf.eissn
1413-4853
dcterms.isPartOf.zdb
2236519-9