This system is made by Jakarta based PT. Trimega Cipta Kreasindo (TritaK). The system is equl to TDRS system of US. A Tracking and Data Relay Satellite (TDRS) is type of communications satellite, that forms part of the Tracking and Data Relay Satellite System (TDRSS) used by NASA and other United States government agencies for communications to and from independent "User Platforms" such as satellites, balloons, aircraft, and the International Space Station. Read More