Moscow: Russia has put into operation one of its four orbiting reserve satellites to re-establish global coverage provided by its GLONASS navigation system, said Russian space officials. Global coverage was interrupted when GLONASS-M satellite # 728 was removed from operation due to a signal transmission failure. Russian experts are attempting to correct the glitch.
The GLONASS system requires at least 18 operational satellites for continuous navigation services across the entire territory of Russia and 24 satellites to provide navigation services worldwide. By 2020, Russia plans to have 30 G LONASS-M and new-generation G LONASS-K satellites in orbit, including six in reserve, Roscosmos said.
Source: Ria Novosti