Minimize Level 1 Algorithms and Products

The OLCI Level-1 operational processor is divided into three processing modes, each with their own Level-1B products. Earth observation mode aims to compute Level-1B products from Level-0 products related to raw data acquired by the instrument on one unique orbit in Earth observation configuration.

Radiometric mode aims to compute calibration coefficients.

Spectral calibration mode aims to compute absolute wavelengths at specific positions on the sensor's arrays.


  • Earth observation processing outputs two products by default; one in Full Resolution (FR) with a spatial resolution of approximately 300 m and one in Reduced Resolution (RR) with a spatial resolution of approximately 1.2 km.
  • Output from the radiometric calibration processor is a set of calibration look-up-tables.
  • Spectral calibration processor output is a set of wavelength characterisation tables.