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برق و الکترونیک::
تصویرساز زمین عملیاتی
The Landsat 8 spacecraft carries two sensors, the Operational Land Imager (OLI) and the Thermal Infrared Sensor (TIRS), collecting over 500 images per day.
The spectral bands covered by the OLI and TIRS instrument on LandSat 8 are shown in Fig- ure 3-10.
Each Landsat-8 OLI image downloaded is accompanied by a data file that contains radiometric calibration coefficients that can be used to convert image digital numbers (DN) to spectral radiance values of the scene at the sensor aperture.
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