Infer Electron Space Environment Along EOR Mission Profile From LEO Measurements: Application to EUTELSAT 7C

Lázaro, D.; Sicard, A.; Caron, Pablo; Falguère, D.; Ecoffet, R.; Standarovski, D.; Balcon, N.; Mekki, Julien; Thakur, Vijay; Timmerman, P.; Hernández, R. Díaz; Schneider, Glenn; Keys, Catherine; Baylocq, M.

doi:10.1109/tns.2022.3153081

Cited by 2 publications

(2 citation statements)

References 17 publications

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“…This phenomenon gave rise to the presence of so-called "killer electrons" which are capable of penetrating even lunar surfaces. Moreover, these killer electrons deposit charge within the medium, introducing a certain likelihood of charge-discharge effects that pose a threat to satellite safety and the overall reliability of space missions [15][16][17][18].…”

Section: Effects Of Geomagnetic Storm and High-energy Electron Storm ...mentioning

confidence: 99%

Detection and Analysis of Radiation Doses in Multiple Orbital Space during Solar Minimum

Wang,

Zhang,

Shen

et al. 2023

Aerospace

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Based on orbit detection data acquired by a positive channel Metal Oxide Semiconductor (PMOS) dose detectors on FY4-A (GEO), BD3-M15 (MEO), and YH1-01A (LEO) between November 2018 and November 2022, investigations reveal variations in total dose and the mechanism of radiation dose increase within the geostationary earth orbit (GEO), medium earth orbit (MEO), and low earth orbit (LEO) during the transition from the 24th to the 25th solar cycles. It provides the radiation dose parameters for the study of the space environment from different altitude orbits, and also provides an important basis for studying the solar minimum activity and dose generation The data indicate directional disparities in radiation doses among the orbital regions, with the hierarchy being FY4-A > YH1-01A > BD3-M15. Furthermore, the results show that the total doses of FY4-A and BD3-M15 were higher than that of YH1-01A by two orders of magnitude, with BD3-M15 > FY4-A > YH1-01A. The monthly radiation dose rates of FY4-A in GEO and BD3-M15 in MEO exhibited positive correlation with their corresponding APs during the solar minimum. Notably, for FY4-A, the monthly radiation dose rate during geomagnetic disturbed periods exceeded that of the dose rate during geomagnetic quiet periods by one order of magnitude. This analysis revealed the substantial impact of geomagnetic storms and space environment disturbances on radiation doses detected by MEO and GEO orbital satellites. These perturbations, attributable to medium- and small-scale high-energy electron storms induced by reproducible coronal holes, emerged as key driving factors of the increase in radiation doses in MEO and GEO environments.

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Section: Effects Of Geomagnetic Storm and High-energy Electron Storm ...mentioning

confidence: 99%

Detection and Analysis of Radiation Doses in Multiple Orbital Space during Solar Minimum

Wang,

Zhang,

Shen

et al. 2023

Aerospace

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“…One example is MERLIN (Smirnov et al., 2020), which uses machine learning to nowcast the electron flux at MEO from the Combined X‐ray dosimeter (CXD) measurements on the GPS constellation (Morley et al., 2017) based on solar wind and geomagnetic indices. Another approach is to utilize the global coherence between LEO measurements and the environment at higher orbits (Chen et al., 2016; Kanekal et al., 2001; Lazaro et al., 2022) to map between the two altitudes. Recently, many models have been developed using this coherence, including Pre‐MevE (Chen et al., 2019; Pires de Lima et al., 2020; Sinha et al., 2021), and the SHELLS model (Claudepierre & O’Brien, 2020).…”

Section: Introductionmentioning

confidence: 99%

Specifying High Altitude Electrons Using Low‐Altitude LEO Systems: Updates to the SHELLS Model

Boyd

Green²,

O’Brien

et al. 2023

Space Weather

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One of the major hazards faced by satellites is internal charging due to high energy (>300 keV) electrons. Traditionally, models and observations related to internal charging have focused on geosynchronous orbit, utilizing measurements from the NOAA Geostationary Operational Environmental Satellites. However, the hazard faced from satellites in Low Earth Orbit (LEO), Highly Elliptical Orbit (HEO) and Medium Earth Orbit (MEO) orbits is considerably less well defined. This makes anomaly resolution considerably more difficult, and often requires mapping distant in situ measurements that can introduce large uncertainties. With more satellite operators utilizing these orbits, including the rise of proliferated LEO, filling this gap is increasingly relevant.Recently, some models have been developed to address these other orbital regimes. One example is MERLIN (Smirnov et al., 2020), which uses machine learning to nowcast the electron flux at MEO from the Combined X-ray dosimeter (CXD) measurements on the GPS constellation (Morley et al., 2017) based on solar wind and geomagnetic indices. Another approach is to utilize the global coherence between LEO measurements and the environment at higher orbits (

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Infer Electron Space Environment Along EOR Mission Profile From LEO Measurements: Application to EUTELSAT 7C

Cited by 2 publications

References 17 publications

Detection and Analysis of Radiation Doses in Multiple Orbital Space during Solar Minimum

Detection and Analysis of Radiation Doses in Multiple Orbital Space during Solar Minimum

Specifying High Altitude Electrons Using Low‐Altitude LEO Systems: Updates to the SHELLS Model

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