Results 191 to 200 of about 18,055 (209)
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INDEPENDENT CONTROL OF GPS NETWORKS ABOVE LONG TUNNELS BY ASTRONOMICALLY DETERMINED AZIMUTHS OR BEARING ANGLES

Survey Review, 2005
At the Faculty of Geodesy, University of Zagreb, the automatic astronomical method of determining the azimuth by observing stars and the Sun has been developed within the frame of the scientific work. The classical astronomical method of azimuth determination is rather uneconomical because of extensive field measurements and long-lasting processing ...
Veršić, Zoran   +2 more
openaire   +2 more sources

A discussion of the accuracy required in astronomic determinations for Laplace azimuth control

Eos, Transactions American Geophysical Union, 1951
The need of increasing the number of observations for azimuth as one approaches higher latitudes is discussed and frequent reference is made to differences of opinion existing between two members of the Geographical Service of Norway in regard to the value of Laplace azimuths in the adjustment of triangulation observed in the Far North. A tabulation of
openaire   +1 more source

A rapid astronomical method of observation for geodetic azimuth and prime vertical deflection of the vertical

Studia Geophysica et Geodaetica, 1970
Es wird ein Versuch beschrieben, eine schnelle astronomische Methode der Bestimmung des geodatischen Azimuts und der Lotabweichung im ersten Vertikal zustande zu bringen, indem man zwei Paare von Nord-Sudsternen in der Nahe des Meridians beobachtet, deren Hohen vornehmlich zwischen 40° und 50° liegen und indem man sich derselben Beobachtungspraxis ...
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Using GPS to Determine an Astronomic-Geodetic Transformation for a Precise Azimuth Reference (PAR).

1995
Abstract : A technique is presented to generate a transformation between the astronomic and geodetic reference frames. The transformation is based on knowing the orientation of a plane in both reference frames. The plane's astronomic orientation is assumed to be known.
James Cunningham, Bruce R. Hermann
openaire   +1 more source

Grid, Geodetic and Astronomical Azimuth Conversions in Ghana

World Journal of Geomatics and Geosciences, 2022
John Ayer   +3 more
openaire   +1 more source

Astronomical Aspects of the Rock Sanctuary near the Popovo Lake, Pirin Mauntain and Potential Vectors for Azimuthal Observations of the Sun in Prehistory

2023
Докладът изследва пространствената и времева организация на светилището на брега на Попово езеро в Пирин. Представени са основни аспекти от легендарния материал и от проведените изследвания. На тази база се издига археоастрономическа хипотеза за слънчевите изгреви по време на зимното слънцестоене през специфични точки на релефа на върховете на циркуса ...
Spasova, Dimitriya   +4 more
openaire   +1 more source

Independent control of geodetic networks above long tunnels by means of astronomically determined azimuths

1997
The work presents the automated astronomical method of determining azimuth and grid azimuth toward to some object on the surface of the Earth. The accuracy of astronomical azimuth determination by observing Polaris with electronic thedolite Kern E2 and Leica T3000 amounts to ą0.4". Such high accuracy in grid azimuth determination enables the control in
Solarić, Nikola   +3 more
openaire   +2 more sources

Automatic determination of the astronomical azimuth by observing a celestial body using the electronic theodolite Kern E2 and the laptop computer Toshiba T1600

Hvar Observatory bulletin, 1991
Automatic determination of the astronomical azimuth by observing a celestial body using the electronic theodolite Kern E2 and the laptop computer Toshiba ...
Solarić, Nikola   +3 more
openaire   +2 more sources

Error Analysis Of Clock Time (T), Declination (*) And Latitude (Φ) On Astronomic Azimuth In Minna, Using Sun Altitude And Hour Angle Methods

Journal of Research in National Development, 2008
The major end results of field and geodetic astronomy in surveying include time (t), latitude (Φ), longitude (λ) and azimuth (A); which are aimed at establishing fixed positions and orientations of survey points and lines on the earth surface. The paper attempts the analysis of the individual and combined effects of error in time (t), declination (δ ...
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An optical system for the precise and automatic determination of astronomic azimuth

Guidance and Control Conference, 1977
L. PARCEL, T. BRENNAN, W. AUSTIN
openaire   +1 more source

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