Improved Stratospheric and Mesospheric Sounder

Details Improved Stratospheric and Mesospheric Sounder Improved Stratospheric and Mesospheric Sounder

Jan 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987spie..810...59t&link_type=abstract

IN: Optical systems for space applications; Proceedings of the Meeting, The Hague, Netherlands, Mar. 30-Apr. 1, 1987 (A88-35951

Computer Science

Sound

Infrared Radiometers, Man Environment Interactions, Mesosphere, Pressure Modulator Radiometers, Satellite Sounding, Stratosphere, Error Analysis, Satellite-Borne Instruments, Spaceborne Telescopes

Scientific paper

This paper describes the Improved Stratospheric and Mesospheric Sounder (ISAMS) which is one of ten experiments due to be launched on the NASA Upper Atmosphere Research Satellite. ISAMS is an eight channel infrared radiometer utilizing pressure modulator radiometry which has been used successfully on Pioneer and Nimbus experiments. The detectors operate at a temperature of 80 K, which is achieved by specially developed Stirling cycle coolers. The emphasis of the paper is on the optical system which must meet the very rigorous requirements on field of view and pointing which come from the limb viewing approach. Also considered is the structural integrity needed to overcome motional chopping, thermal problems associated with the optical design, and the laboratory testing needed to verify the performance.

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