Computer Science – Sound
Scientific paper
Jan 1976
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976jgr....81...17n&link_type=abstract
Journal of Geophysical Research, vol. 81, Jan. 1, 1976, p. 17-24.
Computer Science
Sound
5
Atmospheric Composition, Explorer 51 Satellite, Gas Density, Mass Spectroscopy, Oxygen, Thermosphere, Nitrogen, Particle Density (Concentration), Rocket Sounding, Satellite Observation, Satellite-Borne Instruments
Scientific paper
The Atmospheric Explorer-C satellite used a neutral mass spectrometer containing a quasi-open ion source operating either in normal mode or in one that utilizes the satellite velocity to distinguish between incoming ambient particles and ambient particles which have struck instrument surfaces and become accommodated. An analysis was made of data from the mass spectrometer for those orbits when the open ion source operated either partially or entirely in the fly-through mode. A comparison of N2 density, total O density and O2/N2 density values at 200 km was made. The average N2 and O2 density values agree well with previous rocket soundings and other studies. It is believed that the individual absolute number densities obtained in the normal mode of operation are accurate to within 20% while those deduced from fly-through data may be accurate to only 30%.
Kayser David C.
Nier Alfred O.
Potter W. E.
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