Specifications - Sentinel-3 OLCI Technical Guide - Sentinel Online
The table below shows the engineering requirements of the instrument, which have been derived from the Sentinel-3 mission requirements.
| Swath | 1 440 km |
| SSI at SSP (km) | 300 m |
| Calibration | MERIS type calibration arrangement with spectral calibration using a doped Erbium diffuser plate, PTFE diffuser plate and dark current plate viewed approximately every 2 weeks at the South Pole ecliptic. Spare diffuser plate viewed periodically for calibration degradation monitoring |
| Detectors | Envisat MERIS heritage back-illuminated CCD55-20 frame-transfer imaging device (780 columns by 576 row array of 22.5 µm square active elements). |
| Optical scanning design | Push-broom sensor. Five cameras recurrent from MERIS dedicated Scrambling Window Assembly (SWA) supporting five Video Acquisition Modules (VAM) for analogue to digital conversion |
| Spectral resolution | 1.25 nm (MERIS heritage), 21 bands. |
| Radiometric accuracy | < 2% with reference to the sun for the 400-900 nm waveband and < 5% with reference to the sun for wavebands > 900 nm. 0.1% stability for radiometric accuracy over each orbit and 0.5% relative accuracy for the calibration diffuser BRDF. |
| Radiometric resolution | < 0.03 W m-2 sr-1 mm-1 (MERIS baseline) |
| Mass | 153 kg |
| Size | 1.3 m3 |
| Design lifetime | 7.5 years |