Blagovest satellites (technical identifier 14F149) form a constellation of four geostationary satellites to support Russian Armed Forces communications.
The satellites have Ka and Q band transponders, and provide high speed internet, telephony, and other services. Russia to Complete Military Satellite Constellation Blagovest in April, Sputnik News/Space Daily, 2019-01-15 They were manufactured by ISS Reshetnev, and are based on the Ekspress-2000 bus featuring two deployable solar arrays with five panels on each. The design life is 15 years.Blagovest 1, 2, 3, 4 (14F149), Gunter’s Space Page, accessed 2019-01-17
The first satellite Kosmos 2520/Blagovest-11L was launched on 16 August 2017,14F149 Blagovest communications satellite, Global Security, accessed 2019-01-17 Kosmos 2526/Blagovest 12L on 18 April 2018, Kosmos 2533/Blagovest 13L on 21 December 2018, with the fourth (Kosmos 2539/Blagovest-14L) launched on 5 August 2019, using a Proton-M carrier rocket with Briz-M orbital insertion module. All launches took place from the Baikonur Cosmodrome Site 81 Pad 24.
+Source Satellite Launched on Carrier rocket / Orbital insertion module COSPAR Position Status Blagovest 1 16 August 2017 Proton-M / Briz-M 2017-046A 46° est OK Blagovest 2 18 April 2018 Proton-M / Briz-M 2018-037A 49° est OK Blagovest 3 21 December 2018 Proton-M / Briz-M 2018-107A 52° est OK Blagovest 4 5 August 2019 Proton-M / Briz-M 2019-048A 55° est OK
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