Video story about the GLONASS-K satellite
Having rushed into the pavilions of the CeBIT 2011 exhibition still under construction at night, I saw a luxurious thing: a full-size model of GLONASS-K, the third-generation satellite from the GLONASS series.

The next day, I came to an already open stand, spent 30 minutes persuading, and as a result, a representative of the manufacturing company put on a buttonhole and told me on camera.
According to Wikipedia, the first satellite of the GLOBAL Navigation Satellite System (GLONASS) was launched into orbit on October 12, 1982 (!). After 11 years, the system was officially put into operation, with an orbital constellation of 12 satellites. In December 1995, the number of satellites was increased to a staff of 24. By 2001, due to a lack of funding and a short service life, the number of satellites was reduced to six.
On February 26, 2011, the first GLONASS third-generation satellite, Glonass-K1, was launched from the Plesetsk Cosmodrome.
There are not one, but five GLONASS satellites (in the sense of models, not pieces (although who knows :)). The model of the device, which was presented at CeBIT 2011, is called "Glonass-K" (codename - "Hurricane-K"). It differs from previous models by an extended service life of up to 10 years, reduced weight and other improvements. It is believed that with the transition to Glonass-K, the accuracy of the Russian system will become comparable to the accuracy of the GPS system.

The mass of Glonass-K is 935 kilograms. The most valuable part of the satellite is the so-called payload, with many transceiver antennas of various ranges, including antenna command-measuring system, with which the satellite receives all the necessary commands from the ground and transmits information about its status. At the center of the payload are corner glass laser reflectors (the presence of which on the Moon is one of the proofs that the Americans were there at all) to accurately determine a satellite in orbit accurate to tens of centimeters: a signal is sent from the Earth to the satellite, reflected and returned.

The satellite is powered by four highly efficient solar panels based on gallium arsenide - a chemical compound of gallium and arsenic. These batteries are produced at the Moscow enterprise "Quantum".

GLONASS uses a different control logic and other algorithms than in the American GPS, but there are no fundamental differences between the two systems. When working together, systems can complement each other, significantly increasing positioning accuracy.

The next day, I came to an already open stand, spent 30 minutes persuading, and as a result, a representative of the manufacturing company put on a buttonhole and told me on camera.
According to Wikipedia, the first satellite of the GLOBAL Navigation Satellite System (GLONASS) was launched into orbit on October 12, 1982 (!). After 11 years, the system was officially put into operation, with an orbital constellation of 12 satellites. In December 1995, the number of satellites was increased to a staff of 24. By 2001, due to a lack of funding and a short service life, the number of satellites was reduced to six.
On February 26, 2011, the first GLONASS third-generation satellite, Glonass-K1, was launched from the Plesetsk Cosmodrome.
There are not one, but five GLONASS satellites (in the sense of models, not pieces (although who knows :)). The model of the device, which was presented at CeBIT 2011, is called "Glonass-K" (codename - "Hurricane-K"). It differs from previous models by an extended service life of up to 10 years, reduced weight and other improvements. It is believed that with the transition to Glonass-K, the accuracy of the Russian system will become comparable to the accuracy of the GPS system.

The mass of Glonass-K is 935 kilograms. The most valuable part of the satellite is the so-called payload, with many transceiver antennas of various ranges, including antenna command-measuring system, with which the satellite receives all the necessary commands from the ground and transmits information about its status. At the center of the payload are corner glass laser reflectors (the presence of which on the Moon is one of the proofs that the Americans were there at all) to accurately determine a satellite in orbit accurate to tens of centimeters: a signal is sent from the Earth to the satellite, reflected and returned.

The satellite is powered by four highly efficient solar panels based on gallium arsenide - a chemical compound of gallium and arsenic. These batteries are produced at the Moscow enterprise "Quantum".

GLONASS uses a different control logic and other algorithms than in the American GPS, but there are no fundamental differences between the two systems. When working together, systems can complement each other, significantly increasing positioning accuracy.