the satellite navigation system operated by the Russian Federation, a navigation system based on the transmission of signals from satellites provided and maintained by the Russian Federation and available to civil aviation users

navigation satellite system was developed by the Soviet Union as an experimental military communications system during the 1970s, navigatsioonisatelliitide süsteem, mis töötati välja Nõukogude Liidu poolt välja eksperimentaalse sõjalise sidesüsteemina 1970. aastatel