The user may select one of the spatial pixels at the time for which a spectrum on a whole wavelength range is displayed either as an absolute or relative to measured light source. A spectrum for a light source can be stored using spatially uniform target and illumination. When using relative spectrum view, the spectrum and quick look display show the measured information in proportion to the light source or to the signal measured on the downwelling irradiance channel. Note that this has only effect to the displayed data not to the stored data. Due to continuous development this data may change without prios notice.
Every frame contains spectral irradiance data acquired via fiber optic monitoring channel.
Spatial summing is a way to provide higher signal in low light level applications. One has to bear in mind that spatial binning makes across-track ground resolution lower. Quite similarly spectral binning is used to control the bandwidth of a spectral channel. This is done by summing from too to six detector rows or to a single row. Because in AISA each detector row represents spectral signal on a separate wavelength, summing of side by side rows provides control over actual bandwidth of the used channel.