A.M. Golubev - Head of Department, OJSC «AGAT-control systems» - Managing Company of the Holding «Geoinformation control systems», Minsk, Republic of Belarus. E-mail: golubev@agat.by V.M. Kirsanov - Leading Engineer, OJSC «AGAT-control systems» - Managing Company of the Holding «Geoinformation control systems», Minsk, Republic of Belarus