Türksat (satellite)

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Türksat

is the name of a series of

operated or projected by the state-owned

Satellite telecommunication is provided by the

Missions

[

]

Satellite

Launch Date

Launch site

Launcher

Mass

Status

Note

24 January 1994

1,743 kg

(3,843 lb)

Failed

10 August 1994

ELA-2 Guiana Space

Centre

Ariane-

44LP H10+

1,743 kg

(3,843 lb)

Decommissioned

(2006)

9 July 1996

ELA-2 Guiana Space

Centre

1,743 kg

(3,843 lb)

Decommissioned

(2010)

10 January 2001

ELA-2 Guiana Space

Centre

Ariane-44P

H10-3

3,530 kg

(7,780 lb)

Decommissioned

(2016)

Eurasiasat

12 June 2008

Guiana Space

Centre

3,110 kg

(6,860 lb)

In Service

14 February

2014

4,850 kg

(10,690 lb)

In Service

16 October 2015

4,924 kg

(10,856 lb)

In Service

8 January 2021

3,500 kg

(7,700 lb)

In Service

19 December

2021

4,500 kg

(9,900 lb)

In Service

8 July 2024

4,250 kg

(9,370 lb)

In Service

Satellites

[

]

Türksat 1A

[

]

Main article:

was the first attempt of the project and launched by

from

on 24 January 1994. Due to the failure of the launcher, the satellite exploded in the atmosphere before

reaching its orbit.

Türksat 1B

[

]

Main article:

After the loss of Turksat 1A,

was successfully located at

orbit on 11 August 1994. After the orbital

tests, Turksat 1B was put into service on 10 October 1994. Turksat 1B has three different coverage areas,

and

. The satellite carries 16 transponders, 10 of 36 MHz, 6 of 72 MHz operating in

(11–14

). There are 4 transponder switching capability between Turkey and Central Europe, and 3 between Turkey and

Central Asia. Turksat 1B provides TV and radio broadcasting, data and telephone transmissions. On the other hand, TES

(Telephony Earth Station) Project and

Systems (including 40 southeast rural area IBS) are also

transmitting from Türksat 1B.

Türksat 1C

[

]

Main article:

After the Turksat 1A launch failure,

Company started building a new satellite under the insurance terms of

the Turkey system contract. Modifying the contract with Aérospatiale,

coverage area was enlarged by two big

zones different from Turksat 1B coverage areas. Turksat 1C was designed for covering Turkey on west spot and Europe on

east spot so as to serve simultaneously between Turkey and Europe with Turkey and Central Asia and to provide direct

connection between Europe and Central Asia. Turksat 1C was successfully launched at 31.3°E position on 10 July 1996.

Completing the orbital tests, this satellite shifted from longitude 31.3°E to

. After this process which took 17

days, the broadcast traffic of the Turksat 1B was transferred to Turksat 1C. Finally when these processes finished

Turksat 1B was shifted with similar orbital manoeuvres to 31.3°E position. On 16 July 2008, all traffic on Turksat 1C

was transferred to Turksat 3A. After this date Turksat 1C was shifted at 31.3°E. It is being used in inclined orbit.

Türksat 2A

[

]

Main article:

Turksat Satellite Systems continued progress regarding the need of new satellites having multiple channels, larger

coverage, and backup capability like the other satellite operator satellites in the international market. To serve

with a larger coverage area for resident customers and to compete with the other satellite operators in the literal

sense, the new satellite would be located at the same position with Turksat 1C.

set up a joint venture

company with Aérospatiale (merged by

, then

), called

, which would be in

charge of purchasing a new-generation satellite named Turksat 2A (also known as Eurasiasat 1). Turksat 2A started

commercial service on 1 February 2001, with the same

location as Turksat 1C.

Turksat 2A satellite carries a

payload of 34 high-powered transponders consisting of 22 - 33 MHz fixed-beam

transponders and 12 36 - MHz transponders with two steerable beams.

Turksat 2A BSS Band fixed-beam transponders have two coverage zones like Turksat 1C:

West Zone

covers the

in the west,

countries in the north,

in the south,

and

in the east.

East Zone

covers the

in the west,

in the north,

in the south, and

national boundary in the east.

Inside of the

such as south Asia and

can be accessed over the Turksat 2A FSS Band

steerable-beam transponders.

On 18 September 2014, all traffic on Turksat 2A was transferred to Turksat 4A. However, Turksat 2A will broadcast a

few TV channels until its end of mission in 2016.

Türksat 3A

[

]

Main article:

Turksat 3A satellite will enable Turksat to offer telecommunication services as well as direct TV broadcasting

services through a broader area than its existing satellites covering

and

. With the help of its switchable transponders, Turksat 3A will act as a bridge between Europe and Asia.

's Turkey coverage has been specially designed to provide very efficient gain for broadband applications

services giving customers low-cost, up-link systems.

Based on

, Turksat 3A is fitted with 24 Ku-band transponders and offers beginning of

life power of about 8 kW. Positioned at

, Turksat 3A will weight 3060 kg at launch and will replace Turksat 1C

satellite.

Turksat 3A was launched by

atop an

, along with the British

satellite,

in a dual-payload launch on 12 June 2008 at 22:05:02

, from

at the

Türksat 4A

[

]

Main article:

Turksat 4A was successfully launched from the

at 23:09 UTC on 14 February 2014. After three months

of orbital and subsystem tests, Turksat 4A was successfully transferred from its

temporary orbit at 50°E to a

position at 42°E. The satellite started broadcasting on 15 July 2014.

With Turksat 4A, Turksat AS offers telecommunication and direct TV broadcasting services throughout Turkey, as well as

in Europe, Central Asia, the Middle East and Africa. Turksat 4A provides Ku-band high-power direct TV broadcasting

channels and both C- and Ka-band communications channels.

Türksat 4B

[

]

Main article:

Turksat 4B was successfully launched from the

at 20:40

on 16 October 2015.

References

[

]

Cumhuriyet

(in Turkish). 28 September 2009

. Retrieved

15 February

2014

Habertürk

(in Turkish). 23 December 2007

. Retrieved

15 February

2014

Sahin, Tuba (7 April 2021).

. Retrieved

17 September

2021

nextspaceflight.com

. Retrieved

11 September

2021

Tarihi, Giriş (28 April 2023).

[The highly anticipated date for the Türksat

6A satellite!].

Ahaber

(in Turkish)

. Retrieved

28 April

2023

Mike Wall (8 July 2024).

Space.com

Retrieved

12 July

2024

2008-03-27 at the

. ILS. 17 October 2015

. Retrieved

2 January

2023

Bibliography

[

]

(in French and English)

Guy Lebègue,

, Cannes, France, (trad. Robert J. Amral), « Turksat: A Turnkey

Satellite », in

, N°72, October 1990,

External links

[

]

. Archived from the original on 10 February 2008

. Retrieved

26 January

2018

. Archived from the original on 10 February 2008

. Retrieved

26 January

2018

Satellites

T1.1

T1.2

T2.1

T3.1

T3.2

Göktürk

In development

Göktürk

In research

Launch centers

Institutions