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- GLONASS-K - a new Russian spacecraft GLONASS global navigation system, representing the third generation native of navigation satellites.
- It has the following key features in comparison with the satellite Glonass-M:
- introduced a third frequency in the L-band to improve the reliability of navigation definitions;
- extended period of operation of the spacecraft;
- reduced mass of the satellite;
- Additional equipment is available the international Search and Rescue COSPAS-SARSAT.
- The introduction of a new civil navigation signals and code division in the frequency range of L3 will significantly improve the accuracy of navigation definitions, as well as ground equipment to improve consumers.
- Satellite GLONASS-K is based on a leaky platform Express 1000. The basis of the design of the spacecraft - the case in the form of a parallelepiped made of honeycomb panels.
- On the inner surfaces sotopaneley, which are both sinks, radiators, installed on-board equipment that can operate in open space. Lack germokonteynera gives a significant gain in weight of the satellite, which is 935 kg (for comparison, the mass of the spacecraft Glonass-M - 1415 kg).
- The composition of the onboard equipment includes:
- navigation system;
- Operator;
- orientation and stabilization system;
- correction system;
- thermal control system;
- power supply system.
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