1. Flightaware API. https://tinyurl.com/zsgd7fq 2018. Flightaware API. https://tinyurl.com/zsgd7fq 2018.
2. GPS
: The Global Positioning System. https://www.gps.gov/ 2018. GPS: The Global Positioning System. https://www.gps.gov/ 2018.
3. Iridium NEXT. https://www.iridiumnext.com/ 2018. Iridium NEXT. https://www.iridiumnext.com/ 2018.
4. Iridium Satellite Communications. https://www.iridium.com/ 2018. Iridium Satellite Communications. https://www.iridium.com/ 2018.
5. Wi-Fly