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Having the necessary expertise and technologies for all phases from design to launch of small satellites, TÃœBITAK UZAY conducts research to enhance its capacities in this field and develops special-purpose satellites.
First satellite designed and built in Turkey: RASAT
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RASAT is the second remote-sensing satellite after the launch of Turkey’s first remote sensing satellite BÄ°LSAT of TÜBÄ°TAK UZAY. RASAT, having a high-resolution optical imaging system and new modules developed by Turkish engineers, will be the first Earth-observation satellite to be designed and manufactured in Turkey.
GOALS
To improve know-how from design phase to in-orbit commissioning phase of a satellite project gained from BiLSAT Project,
To develop space qualified systems using current technologies and gaining flight heritage by succeeding in operating these systems in space,
To meet the requirements of Turkey in the sense of remote sensing as much as possible,
To investigate the current capabilities of Turkey for space technologies and to use as much as possible,
To increase number of qualified man power in the field of satellite technologies,
To meet the requirements of Turkish space industry through development of critical modules,
To prove the space-based capabilities of TÃœBÄ°TAK UZAY to Turkey and the World. |
| RASAT IMAGE APPLICATIONS |
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Mapping |
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Disaster Monitoring |
Mapping and updating of 1/25.000 scaled maps
DEM and Orthophoto generation
Land use mapping
Land resources cadastre
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Forest fire monitoring and burnt area mapping
Flood mapping and forecasting
Landslide area mapping
Building destruction and damage assessment after earthquake
Making up-to-date thematic maps for disaster management |
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Environment |
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Urban and regional planning |
Identification of deforestration / reforestation areas
Change detection of coastlines
Oil spill detection and pollution mapping
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Monitoring of urban development
Detection of illegal settlement sites
3D simulation
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| TECHNICAL SPECIFICATIONS |
| Turkish EO Satellite |
RASAT |
| Weight |
110 kg |
| Orbit |
700 km circular, sun synchronous |
| Attitude control |
3 axis stabilised |
| Orbital cycle |
98.8 min |
| Local equator crossing time |
10:30 |
| Spatial resolution |
Panchromatic: 7.5 m
Multispectral: 15 m |
| Expected life time |
5 years |
| Spectral resolution (μm) |
0.42 – 0.73 (Panchromatic)
Band 1: 0.42 – 0.55 (Blue)
Band2 : 0.55 – 0.58 (Green)
Band3: 0.58 – 0.73 (Red) |
| Radiometric resolution |
8 bit |
| Temporal resolution |
4 days |
| Swath width |
30 km |
| Payloads |
Optical payload: It comprises a pushbroom type imager with stereoviewing capability.
BiLGE: Flight computer with the capability to utilize Spacewire.
GEZGiN-2: New generation image processor capable of high-speed multi-spectral image. compression using the JPEG2000 algorithms with encryption capabilities
X-Band Transmitter Module: Communication system with 100 Mb/s downlink at 7W output. |
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BiLSAT
| The BiLSAT project was carried out in order to initiate, develop and support small satellite technologies in Turkey. In cooperation with SSTL (Surrey Satellite Technology Limited), the infrastructure necessary for design and production of small satellites and a ground station were built and BiLSAT, the first remote sensing satellite of Turkey, was produced, launched and inserted into orbit.
The two payloads of the satellite, ÇOBAN and GEZGİN, were designed and produced by TÜBİTAK UZAY with domestic industry support, and they were installed into the BiLSAT satellite.
Launch: September 27th, 2003 |
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uzay.tubitak.gov.tr
