THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - CAPI -
Full Name Cloud and Aerosol Polarization Imager Status Operational
Instrument Agencies NSMC-CMA, NRSCC Maturity
Instrument Type Imaging multi-spectral radiometers (vis/IR) Geometry Push-broom scanning
Instrument Technology Multi-channel/direction/polarisation radiometer Sampling Imaging
Data Access Open Access Data Format HDF 5.0
Measurements and Applications Measures aerosol and cloud
Resolution Summary 250m for 380nm, 670nm and 870nm; 1000m for 1375nm and 1640nm
[Best Resolution: 250m]
Swath Summary 375km
Accuracy Summary Better than 5% for reflectance
Waveband Summary center wavelength: 380nm, 670nm, 870nm, 1375nm, 1640nm. Polarization band: 670nm and 1640nm.
VIS (~0.40 µm - ~0.75 µm)
NIR (~0.75 µm - ~1.3 µm)
SWIR (~1.3 µm - ~3.0 µm)
Instrument Measurements
CategoryParameterAccuracy
AerosolsAerosol optical depth (TC)10 [%]
Cloud type, amount and cloud top temperatureCloud cover 
Instrument Missions
TanSat - The Global Carbon Dioxide Observation Satellite (2016 - 2019)
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