alexa Engineering tool for trapped proton flux anisotropy evaluation.
Geology & Earth Science

Geology & Earth Science

Journal of Remote Sensing & GIS

Author(s): Kruglanski M

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Abstract At low altitudes, the high-energy trapped proton fluxes are strongly anisotropic. The proton flux is controlled by the density distribution of the Earth's atmosphere that induces a steep pitch-angle distribution and an East-West effect, the latter caused by the finite size of the proton gyration radius. We have developed a software package, ANISO, to evaluate averaged energy spectra of trapped proton unidirectional fluxes for a given spacecraft orbit and attitude by deducing the angular-dependent proton flux spectra from the AP-8 omnidirectional flux. Included in the model are both the Armstrong et al. (1990) model and a model based on the Badhwar and Konradi (1990) pitch-angle distribution.
This article was published in Radiat Meas and referenced in Journal of Remote Sensing & GIS

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