The Plana Geodetic Observatory (GO), at a distance of about 30 km from Sofia, is in operational since 1983 . The observatory is equipped with unique space and astro geodetic instruments. Seismic and accelerometric stations were installed in 2003/2004 . The installation of an ionosphere station is in progress. In this way the Plana GO has been transformed into an experimental scientific center of Earth sciences.

 

 

THE PLANA GEODETIC OBSERVATORY

             

 

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