Trzeci Uragan-K 25.10. o 19:08:42,441 z Plesiecka wystrzelona została RN Sojuz-2.1b/Fregat, która wyniosła w T+3h 34' na orbitę o parametrach: hp=19249 km, ha=19719 km, i=64,76° satelitę nawigacyjnego Glonass-K systemu GŁONASS. Otrzyma on nazwę Kosmos 2547.
http://lk.astronautilus.pl/n201016.htm#05Soyuz-2.1b launches a new GLONASS-K navigation satellite4444 wyświetlenia•26 paź 2020
Наземные средства ВКС приняли на управление спутник «Глонасс-К»26.10.2020 10:30
Стартовавшая в воскресенье, 25 октября 2020 года, в 22:08 по московскому времени с космодрома Плесецк в Архангельской области ракета-носитель среднего класса «Союз-2.1б» разработки РКЦ «Прогресс» с разгонным блоком «Фрегат» производства НПО Лавочкина в установленное время успешно вывела на орбиту российский навигационный космический аппарат «Глонасс-К».
Космический аппарат, созданный компанией «Информационные спутниковые системы» имени академика М.Ф. Решетнёва» (входит в периметр Госкорпорации «Роскосмос»), выведен на целевую орбиту и принят на управление наземными средствами Главного испытательного космического центра имени Г.С. Титова Космических войск ВКС. Старт ракеты-носителя «Союз-2.1Б» и выведение космического аппарата «Глонасс-К» на орбиту разгонным блоком «Фрегат» прошли в штатном режиме.
С космическим аппаратом «Глонасс-К» установлена и поддерживается устойчивая телеметрическая связь. Бортовые системы космического аппарата функционируют в штатном режиме.
https://www.roscosmos.ru/29475/Russia launches Glonass navigation satelliteOctober 26, 2020 Stephen Clark
A Soyuz-2.1b rocket lifts off Saturday from the Plesetsk Cosmodrome with a Glonass K navigation satellite. Credit: Russian Ministry of Defense
Artist’s illustration of a Glonass K satellite. Credit: ISS ReshetnevRussian officials said the Glonass satellite extended its solar panels, and ground teams established contact with the spacecraft. All systems on-board the satellite were functioning normally after launch Saturday, officials said.
The payload launched Saturday is the third spacecraft in Russia’s Glonass K series of navigation satellites, which engineers designed to last longer and transmit more navigation signals. The first two Glonass K satellites launched in 2011 and 2014.
The Glonass K satellites weigh around 2,060 pounds, or 935 kilograms, somewhat less than the earlier generation Glonass M satellites.
The Glonass K satellite is expected to operate for 10 years — an improvement from the seven-year design life of previous satellites — and features five navigation channels, including a new civilian L-band signal. The new craft are lighter, generate more electrical power, and are based on an unpressurized Express 1000K bus built by ISS Reshetnev in Zheleznogorsk, Russia.
The Glonass K spacecraft will also support the international Cospas-Sarsat search and rescue network, Russian officials said.
The satellite launched Saturday also uses more Russian-built equipment than previous Glonass spacecraft, a change introduced to the Glonass K design due to international sanctions on Russia.
“Replacing the orbital constellation with Glonass K spacecraft will ensure the stable operation of the Russian navigation system and increase the accuracy of its navigation determinations up to tens of centimeters,” the Russian Defense Ministry said in a statement.
As of Monday, the Glonass fleet consists of 24 active satellites, plus the new spacecraft launched Saturday, and three more operating as a spare, undergoing maintenance, and performing fight tests. The network, which is run by the Russian military but also used by civilians worldwide, requires 24 satellites in service spread among three orbital planes to provide global navigation coverage.
The Russian Ministry of Defense was expected to name the new Glonass satellite Kosmos 2547, keeping with the naming scheme for Russian military spacecraft.
https://spaceflightnow.com/2020/10/26/russia-launches-glonass-navigation-satellite/https://www.nasaspaceflight.com/2020/10/russia-launches-soyuz-with-next-generation-navigation-satellite/Kosmos 2547 (Uragan-K #3, GLONASS-K 15L)
https://space.skyrocket.de/doc_sdat/uragan-k1.htm