Aireon enters 2018 with almost two-thirds of its operational space-based ADS-B system completed.

Aireon announced today the successful fourth launch and deployment of its space-based Automatic Dependent Surveillance-Broadcast (ADS-B) payloads hosted onboard the Iridium® NEXT satellite constellation. At 5:27 PM PST, a flight-proven SpaceX Falcon 9 rocket lifted off from Vandenberg Air Force Base in California, marking the halfway point of the Aireon system deployment and bringing the total number of Aireon payloads in orbit to 40.