The Russian Satellite System, known as GLONASS (Global Navigation Satellite System), is a satellite navigation system developed by Russia. It provides real-time positioning and timing information to users on Earth, similar to the American GPS. GLONASS consists of a constellation of satellites that orbit the Earth, allowing for accurate location tracking across various applications, including navigation for vehicles and aircraft. Launched in the 1980s, GLONASS was designed to ensure Russia's independence in satellite navigation. The system has undergone significant upgrades and expansions, with a full constellation of satellites operational to enhance global coverage and reliability. It is used by both military and civilian sectors, contributing to various technologies and services worldwide.