WASHINGTON—The joint venture developing a space-based surveillance system based on automatic dependent surveillance-broadcast (ADS-B) aircraft position reporting has signed a data services agreement with an organization representing 17 countries in West and Central Africa. The data-provision agreement with the Agency for Aerial Navigation Safety in Africa and Madagascar (ASECNA) covers 16 million km2 (6 mi.2) of airspace over six flight information regions, said Aireon, the joint ...
