Türksat 4B is a Turkish

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 ...

, operated by Türksat.

Overview

According to the in-orbit delivery contract signed in early 2011,

Mitsubishi Electric is a Japanese Multinational corporation, multinational electronics and electrical equipment manufacturing company headquartered in Tokyo, Japan. The company was established in 1921 as a spin-off from the electrical machinery manufacturing d ...

(MELCO) of Japan was in charge of the construction of the satellite's base MELCO DS2000, and the American-Russian joint-venture company

International Launch Services International Launch Services, Inc. (ILS) is a joint venture with exclusive rights to the worldwide sale of commercial Angara and Proton rocket launch services. Proton launches take place at the Baikonur Cosmodrome in Kazakhstan while Angara is l ...

(ILS) provided the launch of the spacecraft atop a Russian

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 ...

space launch vehicle from

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 ...

scheduled in late 2014. In the scope of the contract, Turkish engineers collaborated in the production of the satellite. The production of Türksat 4B at the Mitsubishi Electric Facility in

Kamakura , officially , is a city of Kanagawa Prefecture in Japan. It is located in the Kanto region on the island of Honshu. The city has an estimated population of 172,929 (1 September 2020) and a population density of 4,359 people per km2 over the tota ...

was completed in June 2014. Türksat 4B is part of the Turksat series of satellites, and is placed in

geosynchronous orbit A geosynchronous orbit (sometimes abbreviated GSO) is an Earth-centered orbit with an orbital period that matches Earth's rotation on its axis, 23 hours, 56 minutes, and 4 seconds (one sidereal day). The synchronization of rotation and orbital ...

at 50°E to provide telecommunication and direct TV broadcasting services over a wide geographic region between west of China and east of England spanning Turkey, as well as Europe,

Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...

, the

Middle East The Middle East (term originally coined in English language) is a geopolitical region encompassing the Arabian Peninsula, the Levant, Turkey, Egypt, Iran, and Iraq. The term came into widespread usage by the United Kingdom and western Eur ...

and

Africa Africa is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km2 (11.7 million square miles) including adjacent islands, it covers 20% of Earth's land area and 6% of its total surfac ...

. Türksat 4B has a mass of approximately and an expected on-orbit life time of 15 years.

Türksat 4A Türksat 4A is a Turkish communications satellite, operated by Türksat. It was constructed by Mitsubishi Electric (MELCO) of Japan, based on the MELCO DS2000 satellite bus, and was launched by the American-Russian joint-venture company Internat ...

and Türksat 4B are projected to enable a capacity increase because the satellites currently in service, namely Türksat 2A and Türksat 3A, are at 90% occupied.

Control of UAV's by SATCOM

The

Turkish Armed Forces The Turkish Armed Forces (TAF; , TSK) are the armed forces, military forces of the Turkey, Republic of Turkey. The TAF consist of the Turkish Army, Land Forces, the Turkish Navy, Naval Forces and the Turkish Air Force, Air Forces. The Chief of ...

has dedicated channels on the Turksat 4B for use in guidance of it SATCOM equipped Anka-S

UCAV An unmanned combat aerial vehicle (UCAV), also known as a combat drone, fighter drone or battlefield UAV, is an unmanned aerial vehicle (UAV) that is used for intelligence, surveillance, target acquisition, and reconnaissance and carries aircr ...

systems.

Launch

The spacecraft was launched by the American-Russian joint-venture company

(ILS) atop a Russian

space launch vehicle on October 16, 2015, at 20:40:00 from Baikonur Cosmodrome Pad 39 in

. After successfully completing the testing process, the satellite was placed on its final orbit on October 24, 2015.

Features

Türksat 4B provides expansion of K_a band's 3- Gbps data transfer capacity at spot coverage areas through its 1,800 MHz bandwidth in total. A total of 792 MHz communication capacity is secured by 18

transponder 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 ...

s of the K_u band.

References

{{DEFAULTSORT:Turksat 4B Satellites using the Spacebus bus Satellites using the DS2000 bus Communications satellites of Turkey Spacecraft launched in 2015 2015 in Turkey Communications satellites in geostationary orbit Satellites made by Mitsubishi Electric

Overview

Control of UAV's by SATCOM

Launch

Features

See also

References