| Country | Bulgaria |
| Institution in charge | Geophysical Institute with Geomagnetic observatory, BAS |
| Contact person |
Ilja Cholakov Bozhidar Srebrov |
| Address | Sofia 1113, Acad. G. Bouchev. st. block. 3 |
| Telephone | +359 357 32-10; 32-31; 359 029 79 33-26 |
|
cholakov@inter-pan.net srebrov@geophys.bas.bg |
|
| Number of stations | 16 dublicated points and 10 points first class |
| Instruments used | Magnetic theodolite; QHM; PMP |
| Method of azimuth | Geodetical and girotheodolite |
| Number of measurements | 3 days, every day 2 measurements by two observers |
| Last occupation | 1990 |
| Epoch of reduction | 1990.0 |
| Ocupation interval |
to 1980 - 3 years after 1980 - 5 years |
| Data availability | for every point all components |
| Additional information | each point is investigated for the presence of local disturbances |
|
Last modified : 2009/06/09 A. Jordan |