Abstract
This paper describes a Compact High Resolution Imaging Spectrometer (CHRIS). CHRIS is designed to take images of the Earth in multiple spectral bands over the nominal spectral region 415 to 1050nm. The nominal spatial sampling interval will be 25m, however, larger sampling intervals are possible. Band selection, spectral bandwidths and the spatial sampling interval will be programmable. The instrument is planned to be launched on an agile small satellite of the 100kg class. This satellite will operate in a sun-synchronous, high inclination orbit at approximately 830km. At this altitude the instrument can provide 19 spectral bands with a spatial sampling interval of 25m at nadir. The field of view of CHRIS is 19km. Attitude control of the platform will allow access to non-nadir targets, multi-angle observations of selected targets and improved radiometric resolution.
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