The technical solution provided enables it to determine true meridian of an unmovable object on the Earth, and when moving at constant velocity true track angle. This solution is based on fixation of true meridian by zero value of linear acceleration with induced rotating points of determining pressure around the vertical. Said determinations are implemented quickly and accurately, irrespective of the disturbing factors influence, in particular, electromagnetic and magnetic fields, weather conditions, vibrations, cross accelerations, temperature and others.