13 GLONASS Russian global navigation system satellites are operational despite the expiry of the manufacturer’s warranty period, according to data from the satellite operator GLONASS System Control Center.
On Monday, 13 of the 23 satellites in service, launched between 2007 and 2011, exceeded the warranty period established by the manufacturer, All of them belong to the Glonass-M series, which have a guaranteed 7-year lifespan. The oldest satellite, which was launched in 2007, exceeded the warranty period by five years, Information Satellite Systems Reshetnev (part of Roscosmos).
Another 10 devices used in the system were launched between 2012 and 2019. Nine of them have a 7-year lifespan, while one, Glonass-K, boasts a 10-year warranty period, all of them are under warranty of the manufacturer.
The GLONASS satellite navigation system was developed as a Russian alternative to the GPS. It consists of 24 currently operational satellites, allowing real-time positioning and speed data for surface, sea and airborne objects around the world.
In addition, the GLONASS group includes four other satellites that are not used for the purposes for which they were designed. All are either outside the life guarantee period, or are approaching the “retirement age”.
Currently, new GLONASS satellites are launched once a need arises to replace old devices. The manufacturer now has four GLONASS -Ms Ready for launch, and several new GLONASS -Ks in production.
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