Physics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsa21a..03h&link_type=abstract
American Geophysical Union, Fall Meeting 2003, abstract #SA21A-03
Physics
0310 Airglow And Aurora, 0355 Thermosphere: Composition And Chemistry
Scientific paper
The JOULE rocket experiment was launched from Poker Flat Research Range at 12:09:01 UT on March 27th 2003. The payload included two instruments built at Aerospace Corporation designed to measure the neutral atmosphere and the associated particle precipitation. The photometer experiment consisted of three liquid nitrogen cooled filter photometers which measured the emission from the the N2+ (0,0) band at 391.4 nm, the N2 2P (0,0) band at 337.1 nm, and the OI emission at 844.6 nm. These data when combined with the Strickland electron transport code are used to derive the atomic oxygen to molecular nitrogen ratio between 100 and 200 km. They can also be used to derive the electron energy flux and electron average energy. The electron energy analyzer (EEA) experiment is a top hat style instrument to provide in-situ measurements of the precipitating electron fluxes and their small-scale variations. The energy range of the EEA is from 10 eV to 30 keV in 50 exponentially-spaced steps. These data provide a precise measure of the electron energy spectrum at the rocket altitude. These two independent results will be compared. In addition the EEA data can be combined with the photometer data to provide the atomic oxygen and molecular nitrogen density profiles along the rocket trajectory. Ground-based data were also obtained from Poker Flat and Fort Yukon during this experiment Results from all these data sets will be discussed.
Clemmons James Hart
Hecht James H.
Slocum P. L.
Strickland Dave
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