THE CEOS DATABASE : Missions, Instruments and Measurements
CEOS EO HANDBOOK – INSTRUMENT SUMMARY - MAIA -
Full Name Multi-Angle Imager for Aerosols Status Being developed
Instrument Agencies NASA 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
Measurements and Applications A pair of pushbroom spectropolarimetric cameras on a 2-axis gimbal for multiangle viewing, frequent revisits over targets, and inflight calibration. Major metropolitan areas are sampled with sub-km spatial resolution to study impacts of different types of particulate matter on human health.
Resolution Summary 230 - 460 m (assuming 700 km orbit altitude)
[Best Resolution: 230m]
Swath Summary 600 km (assuming 700 km orbit altitude)
[Max Swath: 600 km]
Accuracy Summary 4% (radiometric), 0.005 degree of linear polarization
Waveband Summary 367, 386, 445*, 543, 645*, 751, 763, 862*, 945, 1620*, 1888, and 2185 nm (*polarimetric)
UV (~0.01 µm - ~0.40 µm)
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) 
Aerosol absorption optical depth (TC) 
Cloud type, amount and cloud top temperatureCloud imagery 
Cloud top height200 [m]
Radiation budgetShort-wave Earth surface bi-directional reflectance 
Instrument Missions
MAIA - Multi-Angle Imager for Aerosols (2020 - 2023)
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