An ATS route is a designated airway defined by a designator, waypoints, distances between waypoints, reporting requirements, and a minimum safe altitude determined by air traffic authorities. The designator consists of 1-2 optional letters or numbers not exceeding 6 total characters. A danger area is an area defined by dimensions where dangerous activities may occur at specified times, mostly operated by military authorities. Restricted and prohibited areas are also defined airspaces above land or water where flight is restricted or prohibited, with dimensions and hours published by each country. Bearing is the clockwise angle between North and a destination or navigation aid, while relative bearing is the angle between the aircraft's heading and the destination or aid. P