Spectral band: 370-1610 nm, six spectral channels:

370 nm – tropospheric aerosol and top of clouds

410 nm – aerosol over ocean and surface

555 nm – aerosol over ocean and surface, ocean color

865 nm – aerosol over ocean and surface

1378 nm – separate cirrus clouds, stratosphere aerosol, separation of troposphere and stratosphere aerosol in case of volcanic eruption

1610 nm – separation surface signal from aerosol over Earth’ surface

Filter ½ width 20 - 60 nm

Observable Stokes parameters: I, Q, U (0,90,45,135°)

Photometric accuracy: 4%

Polarimetric accuracy: 0.15%

On-board calibration: all three Stokes parameters

ScanPol standard error is 0.0008, correspondent to relative error 0.08%

The scan mirrors and calibration units layout of the ScanPol instrument: red segment - scan mirrors; blue element - quarts wedges of the depolarization unit; green element - the Glan prism polarizer unit, black element is the dark unit; solar calibration unit seen at β_s angle. Scanning directions along-track between scan angle β_m1 = +50° and β_m2 = –60° from nadir (β_nadir).