The Multi-Angle Imager for Aerosols (MAIA) is an instrument currently in development to support an investigation aimed at understanding the linkages between different types of airborne particles and human health.

[4] MAIA's twin-camera instrument will make radiometric and polarimetric measurements needed to characterize the sizes, compositions and quantities of particulate matter in air pollution.

[5][6] The MAIA instrument measures the radiance and polarization of sunlight scattered by atmospheric aerosols, from which the abundance and characteristics of ground-level particulate matter (PM) are derived.

The instrument contains a pushbroom spectropolarimetric camera on a two-axis gimbal for multiangle viewing, frequent target revisits, and inflight calibration.

[1] The MAIA instrument is being developed by the Jet Propulsion Laboratory, California Institute of Technology under a contract with the National Aeronautics and Space Administration (NASA).