Far- and extreme-ultraviolet limb imaging spectrograph for the DMSP satellites

Robert P. McCoy; Kenneth F. Dymond; Gilbert G. Fritz; Stefan E. Thonnard; Robert R. Meier; Paul A. Regeon

doi:10.1117/12.60624

29 June 1992 A far and extreme ultraviolet limb imaging spectrograph for DMSP satellites

Robert P. McCoy, Kenneth F. Dymond, Gilbert G. Fritz, Stefan E. Thonnard, Robert R. Meier, Paul A. Regeon

Proceedings Volume 1745, Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing; (1992) https://doi.org/10.1117/12.60624
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

The Naval Research Laboratory is developing a limb imaging far- and extreme-ultraviolet (FUV/EUV) spectrograph (800-1700 A) to measure vertical profiles of the ionospheric and thermospheric airglow from DMSP Block 5D3 satellites. The spectrograph, called the Special Sensor Ultraviolet Limb Imager (SSULI), uses a near-Wadsworth optical configuration with a mechanical grid collimator, concave grating and linear array detector. Measured airglow profiles from the SSULI sensors will be used to infer vertical profiles of electron density and neutral density. At night, electron densities will be determined by measurement of ion recombination nightglow. Daytime electron densities will be obtained from measurements of multiple resonant scattering of O(+) 834 A radiation produced primarily by photoionization excitation. Dayside neutral densities and temperatures will be inferred from measurement of dayglow emissions from N2 and O produced by photoelectron impact excitation.

Citation Download Citation

Robert P. McCoy, Kenneth F. Dymond, Gilbert G. Fritz, Stefan E. Thonnard, Robert R. Meier, and Paul A. Regeon "A far and extreme ultraviolet limb imaging spectrograph for DMSP satellites", Proc. SPIE 1745, Instrumentation for Planetary and Terrestrial Atmospheric Remote Sensing, (29 June 1992); https://doi.org/10.1117/12.60624

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