Pioneer Venus large probe neutral mass spectrometer
نویسندگان
چکیده
منابع مشابه
Visualization of the Pioneer Venus OCPP Data
Scienti c visualization techniques can be used in many scienti c disciplines. To show the bene ts of scienti c visualization, we will discuss the visualization of astrophysical data. The intensity and polarization of sunlight scattered by the atmosphere of Venus were measured by the Pioneer Venus Orbiter. The principal objective of this investigation is to determine the properties of the clouds...
متن کاملFeature Extraction from Pioneer Venus OCPP Data
Scientific visualization provides means to explore data and highlight interesting features in the data. In this paper we will discuss the visualization of astrophysical data. Light properties of sunlight scattered by the atmosphere of Venus were measured by the Pioneer Venus Orbiter. One of the objectives of this mission was to determine the properties of the clouds and haze in the atmosphere. ...
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The Gas Chromatograph Mass Spectrometer (GCMS) on the Huygens Probe will measure the chemical composition of Titan’s atmosphere from 170 km altitude (∼1 hPa) to the surface (∼1500 hPa) and determine the isotope ratios of the major gaseous constituents. The GCMS will also analyze gas samples from the Aerosol Collector Pyrolyser (ACP) and may be able to investigate the composition (including isot...
متن کاملVenus was wet: a measurement of the ratio of deuterium to hydrogen.
The deuterium-hydrogen abundance ratio in the Venus atmosphere was measured while the inlets to the Pioneer Venus large probe mass spectrometer were coated with sulfuric acid from Venus' clouds. The ratio is (1.6 +/- 0.2) x 10(-2). The hundredfold enrichment of deuterium means that at least 0.3 percent of a terrestrial ocean was outgassed on Venus, but is consistent with a much greater production.
متن کاملInitial observations of the nightside ionosphere of venus from pioneer venus orbiter radio occultations.
Pioneer Venus orbiter dual-frequency radio occultation measurements have produced many electron density profiles of the nightside ionosphere of Venus. Thirty-six of these profiles, measured at solar zenith angles (chi) from 90.60 degrees to 163.5 degrees , are discussed here. In the "deep" nightside ionosphere (chi > 110 degrees ), the structure and magnitude of the ionization peak are highly v...
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ژورنال
عنوان ژورنال: Journal of Vacuum Science and Technology
سال: 1979
ISSN: 0022-5355
DOI: 10.1116/1.570059