| Data Set Abstract |
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 Niemann et al. (1980a) and
Kasprzak et al. (1980). |
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