GLONASS-K2
| Manufacturer | ISS Reshetnev | ||
|---|---|---|---|
| Country of origin | Russia | ||
| Operator | JSC «Navigation-Information Systems» | ||
| Applications | Navigation | ||
| Specifications | |||
| Bus | Ekspress-1000K | ||
| Constellation | GLONASS | ||
| Design life | 10 years | ||
| Launch mass | 1,645 kg (3,627 lb) | ||
| Power | 4370 W | ||
| Batteries | Li-ion | ||
| Equipment | 2 Cs + 2 Rb clocks FDMA signals: L1OF, L1SF, L2OF and L2SF CDMA signals: L1OC, L1SC, L2SC and L3OС Space Laser Ranging Search & Rescue (COSPAS-SARSAT) Space Environment Detection System |
||
| Regime | MEO | ||
| Production | |||
| Built | 0 | ||
| On order | 3 | ||
| Launched | 0 | ||
| Operational | 0 | ||
| First launch | 2018 (as of May 2015) | ||
| Related spacecraft | |||
| Derived from | GLONASS-K | ||
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GLONASS-K2 is the next satellite design intended as a part of the Russian GLONASS radio-based satellite navigation system. Developed by ISS Reshetnev (Reshetnev Information Satellite Systems) has an expected launch debut in 2018 with an expected production period of ten years. It is an evolution of the previous GLONASS-K third-generation satellites, adding CDMA signals, improving accuracy and increasing power. It is 70% heavier and has 170% more power.
The Federal Targeted Program "Global Navigation System" 2002–2011, introduced in 2001, stipulated the development of a third-generation navigation satellite design, called GLONASS-K, as part of the overall GLONASS upgrade program in the time frame 2005–2011. The new satellite followed the second generation GLONASS-M, introduced in 2003. The Russian Federal Space Agency (Roscosmos) initially ordered 27 GLONASS-K satellites from ISS Reshetnev, the developer of all the previous GLONASS satellites. On 7 December 2010, the company announced it had completed ground tests of the first GLONASS-K1 development satellite. The satellite was launched to orbit on 26 February 2011 as Kosmos 2471. On November 30, 2014, the second and supposedly last GLONASS-K1 development satellite was put to orbit as Kosmos 2501.
On a May 28, 2014 interview, Nikolay Testoyedov — president of ISS Reshetnev — stated that production of GLONASS-M would end in 2015, with GLONASS-K being exclusively produced after that final batch. In an December 14, 2014 interview with GPS World, he stated that while the original idea was to have just two GLONASS-K1 prototypes to be followed by the GLONASS-K2 production, the Western sanctions limited the supply of radiation resistant electronics. And thus, they had decided to launch an additional nine GLONASS-K1 as fleet replacement while they finished the GLONASS-K2 design. In a May, 2015 presentation, Mr. Testoyedov expected the serial production of GLONASS-K1 to start flying in early 2018, just after the launch of the first GLONASS-K2 prototype. The presentation showed at least eleven additional GLONASS-K1 satellites flying until 2020. In April 2, 2015 he affirmed that the first GLONASS-K2 prototype was expected to fly in 2018 and feature COSPAS-SARSAT compatible equipment.
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