Ekspress-AMU3 (, meaning ''Express-AMU3'') is a Russian domestic

communications satellite A communications satellite is an artificial satellite that relays and amplifies radio telecommunication signals via a Transponder (satellite communications), transponder; it creates a communication channel between a source transmitter and a Rad ...

. It belongs to the

Russian Satellite Communications Company Federal State Unitary Enterprise State Transport Company Rossiya, Federal State Unitary Enterprise Communications satellite, Satellite Communications () or Russian Satellite Communications Company is the main state operator of communications s ...

(RSCC) based in

Moscow Moscow is the Capital city, capital and List of cities and towns in Russia by population, largest city of Russia, standing on the Moskva (river), Moskva River in Central Russia. It has a population estimated at over 13 million residents with ...

, Russia. To provide of communications services (digital television, telephony, videoconferencing, data transmission, the Internet access, presidential and governmental mobile communications) and to deploy satellite networks by applying

VSAT A very-small-aperture terminal (VSAT) is a two-way satellite ground station with a satellite dish, dish antenna that is smaller than 3.8 meters. The majority of VSAT antennas range from 75 cm to 1.2 m. Bit rates, in most cases, range from 4 ...

technology to Russia. Replacement for Ekspress-AM3.

Satellite description

The satellite has 7 C-band

transponders In telecommunications, a transponder is a device that, upon receiving a signal, emits a different signal in response. The term is a blend of ''transmitter'' and ''responder''. In air navigation or radio frequency identification, a flight trans ...

and 2

L-band The L band is the Institute of Electrical and Electronics Engineers (IEEE) designation for the range of Frequency, frequencies in the radio spectrum from 1 to 2 gigahertz (GHz). This is at the top end of the ultra high frequency (UHF) band, at t ...

transponders, while the architecture for the

Ku-band The Ku band () is the portion of the electromagnetic spectrum in the microwave range of frequencies from 12 to 18 gigahertz (GHz). The symbol is short for "K-under" (originally ), because it is the lower part of the original NATO K band ...

is reconfigurable allowing either 8 or 22 active transponders. The Ekspress-AMU3 Russian domestic communications satellite, built by

Information Satellite Systems Reshetnev JSC Information Satellite Systems Reshetnev () is a Russian satellite manufacturing company. It is based in the closed city of Krasnoyarsk-26 (today called Zheleznogorsk), Krasnoyarsk Krai near the city of Krasnoyarsk. The company was formerly ca ...

(ISS Reshetnev) for Kosmicheskaya Svyaz. The communications payload was built by the French company

Thales Alenia Space Thales Alenia Space () is a joint venture between the French technology corporation Thales Group (67%) and Italian defense conglomerate Leonardo (company), Leonardo (33%). The company is headquartered in Cannes, France. It provides space-based ...

, in Italy.

Launch

Ekspress-AMU3 was launched on a

Proton-M The Proton-M, (Протон-М) GRAU index 8K82M or , is an Expendable launch system, expendable Russian heavy-lift launch vehicle derived from the Soviet Union, Soviet-developed Proton (rocket family), Proton. It is built by Khrunichev State R ...

Briz-M The Briz-K, Briz-KM and Briz-M ( meaning ''Breeze-K, KM and M'') are Russian liquid-propellant rocket orbit insertion upper stages manufactured by Khrunichev State Research and Production Space Center and used on the Proton-M and Angara A5. T ...

launch vehicle on 13 December 2021, at 12:07

UTC Coordinated Universal Time (UTC) is the primary time standard globally used to regulate clocks and time. It establishes a reference for the current time, forming the basis for civil time and time zones. UTC facilitates international communica ...

, from Site 200/39 at

Baikonur Cosmodrome The Baikonur Cosmodrome is a spaceport operated by Russia within Kazakhstan. Located in the Kazakh city of Baikonur, it is the largest operational space launch facility in terms of area. All Russian Human spaceflight, crewed spaceflights are l ...

Kazakhstan Kazakhstan, officially the Republic of Kazakhstan, is a landlocked country primarily in Central Asia, with a European Kazakhstan, small portion in Eastern Europe. It borders Russia to the Kazakhstan–Russia border, north and west, China to th ...

Mission

Ekspress-AMU3 was launched with Ekspress-AMU7.

References

{{Orbital launches in 2021 Ekspress satellites Spacecraft launched in 2021 2021 in Russia Satellites using the Ekspress bus

Satellite description

Launch

Mission

See also

References