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PVO VENUS ONMS CALIBRATED NEUTRAL DENSITY HIGH RES. V1.0

Published by National Aeronautics and Space Administration | National Aeronautics and Space Administration | Catalog Last Checked: August 04, 2025 at 06:15 AM | Dataset Last Updated: July 17, 2025
This data set has at least preliminary composition for every data point measured but not necessarily final composition values. The instrument was designed to determine the composition of the neutral thermosphere/exosphere of Venus. The term composition includes both the type of neutral gases present and their quantitative amount. The measurements begin at the orbit's periapsis altitude and extend to a limiting altitude at which the ambient signal becomes comparable to the gas background and/or detector measurement threshold. The neutral composition includes helium, atomic nitrogen, atomic oxygen, molecular nitrogen, carbon monoxide and carbon dioxide. The data reduction has been described in [NIEMANNETAL1980A] and [KASPRZAKETAL1980].

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