Abstract

A system is described for acquiring spectroradiometric data concerning objects in space from an airborne platform. The system operates in the 0.25 to 15-μ spectral region; large collecting optics, precise optical tracking, and background discrimination in the entrance optics permit the acquisition of high resolution and sensitivity. Through the use of reflective choppers, dichroic filters, and multiple exit slits, five types of data are acquired simultaneously; these include spectral data in the regions 0.25–0.6 μ, 0.6 to 5 μ, and 5 to 15 μ, and radiometric data in the regions 0.25 to 0.6 μ and 0.6 to 15 μ. Calibration techniques are described.

© 1960 Optical Society of America

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