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In Situ Data and Effect Correlation During September 2017 Solar Particle Event

Authors :
Natalia Vlasova
Piers Jiggens
Ingmar Sandberg
Ilya Usoskin
Miikka Paassilta
Pentti Nieminen
Arttu Punkkinen
Alexander Mishev
Hannu Leppinen
Eamonn Daly
Ulrich Straube
Olivier Witasse
D. Heynderickx
Hugh Evans
T. P. O'Brien
Thomas Berger
Jaan Praks
Vladimir Kalegaev
Beatriz Sánchez-Cano
Donald M. Hassler
J. E. Mazur
Tsutomu Nagatsuma
Christian Poivey
C. Clavie
Rami Vainio
Petri Niemelä
Sylvie Benck
Stanislav Borisov
Daniel Müller
Mathias Cyamukungu
Sigiava Aminalragia-Giamini
European Space Research and Technology Centre
European Space Agency - ESA
Aerospace Corporation
University of Oulu
Lomonosov Moscow State University
Université catholique de Louvain
DH Consultancy BVBA
Space Applications and Research Consultancy
German Aerospace Center
University of Turku
University of Leicester
Southwest Research Institute
Department of Electronics and Nanoengineering
Space Systems Finland Oy
Japan National Institute of Information and Communications Technology
Aalto-yliopisto
Aalto University
Source :
Space Weather. 17:99-117
Publication Year :
2019
Publisher :
American Geophysical Union (AGU), 2019.

Abstract

Solar energetic particles are one of the main sources of particle radiation seen in space. In the first part of September 2017 the most active solar period of cycle 24 produced four large X-class flares and a series of (interplanetary) coronal mass ejections, which gave rise to radiation storms seen over all energies and at the ground by neutron monitors. This paper presents comprehensive cross comparisons of in situ radiation detector data from near-Earth satellites to give an appraisal on the state of present data processing for monitors of such particles. Many of these data sets have been the target of previous cross calibrations, and this event with a hard spectrum provides the opportunity to validate these results. As a result of the excellent agreement found between these data sets and the use of neutron monitor data, this paper also presents an analytical expression for fluence spectrum for the event. Derived ionizing dose values have been computed to show that although there is a significant high-energy component, the event was not particularly concerning as regards dose effects in spacecraft electronics. Several sets of spacecraft data illustrating single event effects are presented showing a more significant impact in this regard. Such a hard event can penetrate thick shielding; human dose quantities measured inside the International Space Station and derived through modeling for aircraft altitudes are also presented. Lastly, simulation results of coronal mass ejection propagation through the heliosphere are presented along with data from Mars-orbiting spacecraft in addition to data from the Mars surface.

Details

ISSN :
15427390
Volume :
17
Database :
OpenAIRE
Journal :
Space Weather
Accession number :
edsair.doi.dedup.....684669ec75d2d1f00068408aa9dcbec4