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Variable:
Energetic Neutral Atom (ENA)
Definition
Full name
Energetic Neutral Atom (ENA)
Definition
Neutral atoms resulting from the capture of free electrons by positively ionized nuclei of the solar wind. Once neutralised, the particles are no longer deviated by the interplanetary magnetic field, and still move very fast, travelling in an exact straight line.
Measuring Units
Particles·(cm2 s sr MeV)-1
Uncertainty Units
%
Horizontal Res Units
Vertical Res Units
Stability Units
(Stability /decade)
Comment:
By imaging ENA, the boundaries of the heliosphere and the magnetosphere can be depicted. ENAs are found everywhere in space and are directly observable at energies from 10 eV to more than 1 MeV, classified into low, medium and high.
Last modified:
2017-04-21
Applied in OSCAR/Space Gap Analysis:
Yes
Classification
Domain: Outer Space
Sub-domain: Energetic particles and solar wind
Variable: Energetic Neutral Atom (ENA)
Earth System Application Categories and its related Application Areas:
Requirements defined for Energetic Neutral Atom (ENA) (0)
This tables shows all related requirements. For more
operations/filtering, please consult the full list of
Requirements Note: In reading the values, goal is marked blue ,
breakthrough green , threshold orange Application-dependent Technical Priority (ATP) Magenta and Relative priority of the attributes Red
Id
Variable
Layer
App Area
ATP
Uncertainty
Layer/s Quality
Coverage Quality
Stability / decade
Hor Res
Ver Res
Obs Cyc
Timeliness
Coverage
Conf Level
Val Date
Source
General Comment
Application Area Comment
Horizontal Coverage Comment
Observation Comment
Performance Comment