Multi-Year Statistics of LEO Energetic Electrons as Observed by the Korean NextSat-1

Park, Jaeheung; Min, Kyoung Wook; Seo, Hoonkyu; Kim, Eo‐Jin; Ryu, Kwangsun; Sohn, Jongdae; Seon, Jongho; Yoo, Ji‐Hyeon; Lee, Seunguk; Kress, Brian; Lee, Junchan; Woo, Changho; Lee, Dae‐Young

doi:10.1029/2021SW002787

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Multi-Year Statistics of LEO Energetic Electrons as Observed by the Korean NextSat-1

2021
By Park, Jaeheung ; Min, Kyoung Wook ; Seo, Hoonkyu ; ...
Source: Space Weather, 19, e2021SW002787

[PDF-4.65 MB]

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Journal Title:

Space Weather
Personal Author:

Park, Jaeheung ; Min, Kyoung Wook ; Seo, Hoonkyu ; Kim, Eo‐Jin ; Ryu, Kwangsun ; ... More +

Park, Jaeheung ; Min, Kyoung Wook ; Seo, Hoonkyu ; Kim, Eo‐Jin ; Ryu, Kwangsun ; Sohn, Jongdae ; Seon, Jongho ; Yoo, Ji‐Hyeon ; Lee, Seunguk ; Kress, Brian ; Lee, Junchan ; Woo, Changho ; Lee, Dae‐Young Less -
NOAA Program & Office:

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information)

NESDIS (National Environmental Satellite, Data, and Information Service) ; NCEI (National Centers for Environmental Information) Less -
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Monitoring the Earth's radiation belt by Low-Earth-Orbit (LEO) satellites has a long history and complemented observations near the high-altitude equatorial plane. However, most of the previous LEO missions suffered from limitations in energy resolution, energy range, L-shell coverage, or the mission lifetime, which leave room for further improvement in this topic. For <80 keV electrons, the slot-region outer edge at LEO moves inward with increasing geomagnetic activity, which agrees with previous Van Allen Probes reports. The behavior is more conspicuous for lower-energy electrons. Latitudinal profiles of outer-belt electron flux are smoother equatorward of the geosynchronous footprint latitudes (|MLAT| ∼ 66°) than poleward. The NextSat-1 electron flux is positively correlated to geosynchronous observations, with the coefficient generally higher for higher electron energies. Also, both the geosynchronous and NextSat-1 data exhibit similar spectral indices close to −3 in the log-log space. All these results complement and expand previous knowledge on energetic electrons. The main findings are discussed in the context of existing literature.
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Space Weather, 19, e2021SW002787
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https://doi.org/10.1029/2021SW002787
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Journal Article
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CC BY-NC-ND
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urn:sha256:f4b6f0d02ce410dc612aaa9fabb7a559b801c7bde63ff0bce172f8103d928334
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Multi-Year Statistics of LEO Energetic Electrons as Observed by the Korean NextSat-1

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