The centre is the control centre for the radar network. Here signals from every station are received and, if necessary, a message can be sent to the presidential 'nuclear briefcase' for authorisation to use nuclear weapons. There is a communications centre which has a number of backup channels to communicate with each radar station. If a ballistic missile attack is discovered the duty commander reports this to the central command post of the General Staff. At the same time the duty engineer reports it to the commander of the Aerospace Defence Forces, for redundancy. Information comes from the radar network, early warning satellites and the space surveillance network SKKP. The centre also discovers and monitors space objects through the use of radar which are fed into the SKKP network.
Warning network
The Russianmissile warning system originates in the Soviet Union and is often known by its Soviet initials SPRN, from Sistema preduprezhdeniya o raketnom napadenii 'Missile attack warning system'. It started on 15 February 1971 as two Dnestr-M radars at Olenegorsk and Skrunda with a command post in Solnechnogorsk. It expanded by the addition of Dnestr-M radars in Mishelevka and Balkhash in 1973, a Dnepr radar in Sevastopol in 1975 and another in Mukachevo in 1977. The Daugava radar, a Daryal receiver, started operations in 1975 at Olenegorsk. In 1978 an upgraded warning system called Крокус was introduced. In 1982 the Oko early warning satellite system became operational. It was joined in 1984 by the first Daryal radar in Pechora and in 1985 by the Daryal in Gabala. The 1972 Anti-ballistic missile treaty requires that early warning radar stations are located on the periphery of national territory and face outwards. When the Soviet Union collapsed in 1991 this resulted in many of the stations ending up in newly independent states. The radar station at Skrunda, now in Latvia, closed in 1998. Other stations now overseas were Sevastopol and Mukachevo, Balkhash and Gabala. The Volga radar at Baranavichy in Belarus came online in 2003 and the two Ukrainian radars closed in 2009. In the mid-2000s Russia started the roll out of the next generation of early warning radar, the Voronezh. The first station in Lekhtusi near St Petersburg went on combat duty in 2012. Other stations in Kaliningrad and Armavir were made operational in the following years. The Russian military has expressed a desire to replace or replicate all overseas radars with domestic stations as overseas ones cannot be relied upon in times of tension and war. New stations were commissioned in locations such as Barnaul, Orsk, Orenburg and Yeniseysk.