Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa41b1868r&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SA41B-1868
Physics
[0355] Atmospheric Composition And Structure / Thermosphere: Composition And Chemistry, [0394] Atmospheric Composition And Structure / Instruments And Techniques
Scientific paper
The Thermospheric Temperature Imager (TTI) on Fast, Affordable, Science and Technology SATellite (FASTSAT) measures the upper atmospheric atomic oxygen emission at 135.6 nm and the molecular nitrogen LBH emission at 135.4 nm to determine the atmospheric O/N2 density ratio. Observations of variations in this thermosheric ratio correspond to electron density variations in the ionosphere. The TTI design makes use of a Fabry-Perot interferometer to measure Doppler widened atmospheric emissions to determine neutral atmospheric temperature from low Earth orbit. FASTSAT launched November 10, 2010 and TTI is currently observing geomagnetic signatures in the aurora and airglow. This work is supported by NASA.
Gill Nick
Jones Siân
Mentzell Eric E.
Rodríguez Manuel
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