Türksat 4B

Türksat 4B
Mission type Communication
Operator Turksat
Mission duration 15 years
Spacecraft properties
Bus MELCO DS2000[1]
Manufacturer MELCO[1]
Launch mass 4,924 kg (10,856 lb)
Start of mission
Launch date October 16, 2015, 20:40:00 (2015-10-16UTC20:40Z) UTC
Rocket Proton-M/Breeze-M
Launch site Baikonur Cosmodrome Pad 39, Kazakhstan
Contractor ILS
Orbital parameters
Reference system Geocentric
Regime Geostationary
Longitude 50° East

Türksat 4B is a Turkish communications satellite, which will be operated by Turksat.

Overview

According to the in-orbit delivery contract signed in early 2011, Mitsubishi Electric (MELCO) of Japan is in charge of the construction of the satellite's base MELCO DS2000,[1] and the American-Russian joint-venture company International Launch Services (ILS) will provide the launch of the spacecraft atop a Russian Proton-M space launch vehicle from Baikonur Cosmodrome in Kazakhstan scheduled in late 2014. In the scope of the contract, Turkish engineers will collaborate in the production of the satellite.[2][3][4][5] The production of Türksat 4B at the Mitsubishi Electric Facility in Kamakura was completed in June 2014.[6]

Türksat 4B is part of the Turksat series of satellites, and will be placed in geosynchronous orbit 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, the Middle East and Africa.[3][4][7]

Türksat 4B will have a mass of approximately 4,924 kg (10,856 lb) and an expected on-orbit life time of 15 years.[4][8][9]

Türksat 4A 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.[3][10]

Launch

The spacecraft was launched by the American-Russian joint-venture company International Launch Services (ILS) atop a Russian Proton-M space launch vehicle on October 16, 2015 at 20:40:00 from Baikonur Cosmodrome Pad 39 in Kazakhstan.[11][9]

After successfully completeing the testing process, the satellite was placed on its final orbit on October 24, 2016.[12]

Features

Türksat 4B provides expansion of Ka band's 3-Gbps data transfer capacity at the at spot coverage areas thru its 1,800 Mhz bandwith in total . A total of 792 MHz communication capacity is secured by 18 transponders of the Ku band.[12]

See also

References

  1. 1 2 3 TURKSAT-4A/4B Mitsubishi Electric
  2. ↑ "TÜRKSAT 4A haberleşme uydularının imza töreni". Hürriyet Teknoloji (in Turkish). 2011-03-07. Retrieved 2013-01-20.
  3. 1 2 3 "ILS and MELCO Announce the Contract for Launch of the Turksat 4A and Turksat 4B Satellites on ILS Proton". ILS Launch. Retrieved 2013-01-20.
  4. 1 2 3 "Launch Schedule 2014". Satellite Launches. Retrieved 2013-01-20.
  5. ↑ "TÜRKSAT-4A ve TÜRKSAT-4B Uydu İhalesi ve Uydu Üretim Teknoloji Transferi Projesi" (in Turkish). Türksat. Retrieved 2013-01-20.
  6. ↑ "TÜRKSAT 4B uydusu tamamlandı". Sabah (in Turkish). 2014-06-13. Retrieved 2014-06-28.
  7. ↑ "Türksat 4B coverages & footprints". Satellite Launches. 2011-10-09. Retrieved 2013-01-20.
  8. ↑ "Türksat-4B". ILS. Retrieved 2015-10-17.
  9. 1 2 "ILS Proton Successfully Launches The Turksat-4B Satellite For Turksat". ILS. Retrieved 2015-10-17.
  10. ↑ "Yerli tasarım 6A uydusu geliyor". Hürriyet Ekonomi (in Turkish). 2012-12-02. Retrieved 2013-01-20.
  11. ↑ Bergin, Chris (2015-10-16). "ILS Proton M launches with Türksat-4B". NASA spaceflight.com. Retrieved 2015-10-17.
  12. 1 2 "Türksat 4B uydusu ile internet ucuzluyor". Hürriyet Teknoloji (in Turkish). 2016-01-22. Retrieved 2016-01-22.
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