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Türksat 4B

Mission type	Communication
Operator	Türksat
COSPAR ID	2015-060A
SATCAT no.	40984
Mission duration	15 years
Spacecraft properties
Bus	MELCO DS2000
Manufacturer	MELCO
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/Briz-M
Launch site	Baikonur Cosmodrome Pad 39, Kazakhstan
Contractor	ILS
Orbital parameters
Reference system	Geocentric
Regime	Geostationary
Longitude	50° East
Türksat program← Türksat 4ATürksat 5A →

Türksat 4B is a Turkish communications satellite, operated by Türksat.

Overview

According to the in-orbit delivery contract signed in early 2011, Mitsubishi Electric (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 (ILS) provided 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 collaborated in the production of the satellite. The production of Türksat 4B at the Mitsubishi Electric Facility in Kamakura was completed in June 2014.

Türksat 4B is part of the Turksat series of satellites, and is 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.

Türksat 4B has a mass of approximately 4,924 kg (10,856 lb) and an expected on-orbit life time of 15 years.

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.

Control of UAV's by SATCOM

The Turkish Armed Forces has dedicated channels on the Turksat 4B for use in guidance of it SATCOM equipped Anka-S UCAV systems.

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.

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 transponders of the K_u band.

See also

• Turksat (satellite)

References

1. ^ TURKSAT-4A/4B Mitsubishi Electric
2. "TÜRKSAT 4A haberleşme uydularının imza töreni". Hürriyet Teknoloji (in Turkish). 2011-03-07. Retrieved 2013-01-20.
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. ^ "Launch Schedule 2014". Satellite Launches. Archived from the original on 2018-10-06. Retrieved 2013-01-20.
5. "TÜRKSAT-4A ve TÜRKSAT-4B Uydu İhalesi ve Uydu Üretim Teknoloji Transferi Projesi" (in Turkish). Türksat. Archived from the original on 2012-08-21. 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. Archived from the original on 2013-01-27. Retrieved 2013-01-20.
8. "Türksat-4B". ILS. Retrieved 2015-10-17.
9. ^ "ILS Proton Successfully Launches The Turksat-4B Satellite For Turksat". ILS. October 17, 2015. Retrieved November 2, 2022.
10. "Yerli tasarım 6A uydusu geliyor". Hürriyet Ekonomi (in Turkish). 2012-12-02. Retrieved 2013-01-20.
11. "ANKA-S to be Delivered to Turkish Army in 2017 – UAS VISION". 29 December 2016.
12. "Ground Systems to be Supplied for ANKA-S UAV". i-hls.com. January 1, 2017.
13. Bergin, Chris (2015-10-16). "ILS Proton M launches with Türksat-4B". NASA spaceflight.com. Retrieved 2015-10-17.
14. ^ "Türksat 4B uydusu ile internet ucuzluyor". Hürriyet Teknoloji (in Turkish). 2016-01-22. Retrieved 2016-01-22.

• 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