The Fabry-Perot Interferometer on Dynamics Explorer

Details The Fabry-Perot Interferometer on Dynamics Explorer The Fabry-Perot Interferometer on Dynamics Explorer

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981ssi.....5..395h&link_type=abstract

Space Science Instrumentation, vol. 5, Dec. 1981, p. 395-416.

Computer Science

Sound

24

Atmospheric Sounding, Dynamics Explorer Satellites, Fabry-Perot Interferometers, Satellite-Borne Instruments, Dynamics Explorer 2 Satellite, Ionospheric Sounding, Mission Planning, Thermosphere

Scientific paper

The Fabry-Perot Interferometer (FPI) on Dynamics Explorer is a remote sensing instrument designed to measure the temperature, meridional wind and density of the metastable atoms O(1S) and O(1D), and the ion O(plus)(2P) in the thermosphere. The measurements are made with a stable, high resolution Fabry-Perot etalon, which performs a wavelength analysis on the light detected from the thermospheric emission features by spatially scanning the interference fringe plane with a multichannel array detector. The wavelength analysis characterizes the Doppler line profile of the emitting species. A sequential altitude scan, performed by a commandable horizon scan mirror, provides a cross-sectional view of the thermodynamic and dynamic state of the thermosphere below the orbit of the Dynamics Explorer B satellite.

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