High Resolution Remote Sensing Satellite Design Heritage
Turkey's first high resolution electro-optical satellite GÖKTÜRK-2, has been indigenously designed by Turkish Aerospace Industries, Inc. (TAI) and TÜBİTAK Space cooperation.
In addition to meet the Turkish Armed Forces high resolution image requirements, GÖKTÜRK-2 is being utilized for civilian activities such as control of forestland, tracking illegal construction, rapid assessment of damage after natural disasters, determination of agricultural boundaries and geographical data gathering. The project has also furnished national industry with the capability of developing own spacecraft in Turkey including; design, integration and environmental test infrastructure.
The GÖKTÜRK-2 Program has been funded by The Scientific and Technological Research Council of Turkey (TÜBİTAK) and conducted by the TAI & TUBITAK Space team under the coordination of Ministry of National Defense between 2007-2012.
The GÖKTÜRK-2 System and mission have been indigenously designed by Turkish engineers. In the framework of the Project, TAI has performed the following activities regarding the GÖKTÜRK-2 Satellite;
- Structural System design, analysis, manufacturing and test
- Thermal Control System design, analysis, integration and test
- Attitude and Orbit Control System design, integration and test
- System accommodation design
- Harness design, manufacturing and test
- Attitude and Orbit Control interface unit design, manufacturing, qualification, integration and test
- Assembly of all Satellite Models (* 1SQM, 2QM, 3FM)
- Mass properties measurement of all Satellite Models (SQM, QM, FM) at TAI AIT Facilities
- Structural tests (static, vibration, acoustic) of all Satellite Models (SQM, QM, FM)
- Commissioning of the Thermal Vacuum Chamber (TVC) established at TAI AIT Facilities
- Thermal tests of the Satellite Qualification Model and Flight Model (at TAI TVC)
- Alignment measurements of the Satellite Models (QM, FM)
- Deployment tests of Solar Panels for the Satellite Models (QM, FM)
- Management of Satellite and Launch Vehicle compatibility
- Separation test of the Satellite (QM)
- Satellite FM integration and functional tests
- Integrated Logistics Support
- Indigenous development of thermal analysis software
Turkey's first High Resolution Remote Sensing Satellite GÖKTÜRK-2 has been transported from TAI (Ankara) to Jiuquan Satellite Launch Center on November 23, 2012 and launched on December 18, 2012 from Jiuquan Satellite Launch Center, China with a LM-2D Launcher. The first signal from GÖKTÜRK-2 has been received at 17:39 (UTC) in the Tromsø Satellite Station, northern Norway. After the completion of the early orbit phase, the images taken by GÖKTÜRK-2 have been received by the ground station in Ankara.
As of December 18, 2013; GÖKTÜRK-2 completed it's 4th year in space with more than 15.000 passes. The satellite is still under the operation of Turkish Air Forces from Ankara/Turkey Ground Station.
Technical Specifications of the GÖKTÜRK-2 Satellite :
|Orbit||: Sun Synchronous|
|Altitude||: ~ 700 km|
|Period||: ~ 98 minutes|
|Daily Ground Station Contact||: ~ 40 minutes (day + night)|
|Coverage||: Global Coverage|
|Revisit Time||: Average 2,5 days|
|Mass||: < 409 kg.|
|Image Storage Capacity||: 8 GB + 32 GB (scientific)|
|Resolution (PAN)||: 2,5 m|
|Resolution (MS)||: 5,0 m|
|Life Time||: 5 year|
* 1 SQM: Structural Qualification Model, 2 QM: Qualification Model, 3 FM: Flight Model