Astro-geodetic activities in the institut fuer angewandte geodaeie

Abstract

The astronomic-geodetic activities in the Institute for Angewandte Geodasie comprise, on principle, two tasks: to determine longitudes, latitudes and azimuths at Laplace stations, and to determine the deflections of the vertical at stations of first, second, and third order. The observations at selected Laplace stations are an essential part of geodetic surveying. Observations of the deflections of the vertical are partly made as astronomic leveling in double chains of primary triangulation stations and corresponding networks established to increase the density of points, partly they are made an additional primary triangulation stations for the purpose of national survey.