The ASIM Mission on the International Space Station

Neubert, Torsten; Østgaard, Nikolai; Reglero, V.; Blanc, E.; Chanrion, Olivier; Oxborrow, C. A.; Orr, A.; Tacconi, Matteo; Hartnack, Ole; Bhanderi, Dan

doi:10.1007/s11214-019-0592-z

Cited by 125 publications

(139 citation statements)

References 60 publications

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“…The ASIM (Neubert et al, ) consists of two main instruments: MXGS for hard radiation observations and Modular Multispectral Imaging Array (MMIA) for optical observations (Chanrion et al, ). The MXGS instrument consists of a Low Energy Detector (LED) and a High Energy Detector (HED).…”

Section: Instruments and Datamentioning

confidence: 99%

The First Terrestrial Electron Beam Observed by the Atmosphere‐Space Interactions Monitor

et al. 2019

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We report the first Terrestrial Electron Beam detected by the Atmosphere-Space InteractionsMonitor. It happened on 16 September 2018. The Atmosphere-Space Interactions Monitor Modular X and Gamma ray Sensor recorded a 2 ms long event, with a softer spectrum than typically recorded for Terrestrial Gamma ray Flashes (TGFs). The lightning discharge associated to this event was found in the World Wide Lightning Location Network data, close to the northern footpoint of the magnetic field line that intercepts the International Space Station location. Imaging from a GOES-R geostationary satellite shows that the source TGF was produced close to an overshooting top of a thunderstorm. Monte-Carlo simulations were performed to reproduce the observed light curve and energy spectrum. The event can be explained by the secondary electrons and positrons produced by the TGF (i.e., the Terrestrial Electron Beam), even if about 3.5% to 10% of the detected counts may be due to direct TGF photons. A source TGF with a Gaussian angular distribution with standard deviation between 20.6 • and 29.8 • was found to reproduce the measurement. Assuming an isotropic angular distribution within a cone, compatible half angles are between 30.6 • and 41.9 • , in agreement with previous studies. The number of required photons for the source TGF could be estimated for various assumption of the source (altitude of production and angular distribution) and is estimated between 10 17.2 and 10 18.9 photons, that is, compatible with the current consensus.

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Section: Instruments and Datamentioning

confidence: 99%

The First Terrestrial Electron Beam Observed by the Atmosphere‐Space Interactions Monitor

et al. 2019

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“…This vibrational and electronical chemical model allows us to calculate the temporal evolution of the density of N 2 ( B 3 Π g , v = 0, …, 6), N 2 ( C 3 Π u , v = 0, …, 4), and N 2 (a 1 Π g , v = 0, …, 15). Therefore, we can calculate the temporal evolution of the contribution of single sprite streamers to ASIM photometers (PH1: 337 ± 2.5 nm from the SPS, PH2: 180–230 nm from the LBH band) sampling at 100 kHz (Chanrion et al., 2019; Neubert et al., 2019) and TARANIS photometers (PH1: 337 ± 5 nm from the SPS, PH2: 145–280 nm from the LBH band, PH3: 757–765 nm from the FPS, PH4: 600–800 nm from the FPS) sampling at 20 kHz (Lefeuvre et al., 2008).…”

Section: Streamer Modelmentioning

confidence: 99%

The Contribution of Sprite Streamers to the Chemical Composition of the Mesosphere‐Lower Thermosphere

Pérez‐Invernón

Malagón-Romero

Gordillo‐Vázquez

et al. 2020

Geophysical Research Letters

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Sprites are mesospheric filamentary discharges that liberate and accelerate large quantities of electrons. They produce local enhancements of some chemical species and fast (millisecond) optical emissions. In this work, we couple a self‐consistent 2‐D model of sprites with an extensive chemical scheme to calculate the injection of chemical species by one sprite streamer in the mesosphere 0.85 ms after its onset. The N, NO, and N2O injections per streamer are about 1021 atoms, 6 × 1019 molecules, and 1018 molecules, respectively. According to our results, longer simulations are necessary to determine the role of sprites in the concentration of N2O in the mesosphere. We also calculate the contribution of sprite glows to space‐based photometers of the Atmosphere‐Space Interactions Monitor and the Tool for the Analysis of RAdiations from lightNIngs and Sprites.

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“…Flashes, TGFs)等 [1,2] , 可能对近地空间的飞行安全产生影响. 过去三十年中对这些现象的研究丰富了大气电学和闪电物理学的研究范畴, 使得闪电研究逐步扩展到空间科学的领域 [3][4][5] . 20世纪末, 探测宇宙超新星爆发产生的伽马射线暴(Gamma-Ray Burst, GRB)的卫星平台探测到来自于地球表面的电离性高能射线 [6] .…”

Section: 引言unclassified

Terrestrial gamma-ray flashes as the high-energy effect of tropospheric thunderstorms in near-Earth space

Lyu¹,

Yang²,

Zhu³

et al. 2020

Sci. Sin.-Phys. Mech. Astron.

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The ASIM Mission on the International Space Station

Abstract: The Atmosphere-Space Interactions Monitor (ASIM) is an instrument suite on the International Space Station (ISS) for measurements of lightning, Transient Luminous

Cited by 125 publications

References 60 publications

The First Terrestrial Electron Beam Observed by the Atmosphere‐Space Interactions Monitor

The First Terrestrial Electron Beam Observed by the Atmosphere‐Space Interactions Monitor

The Contribution of Sprite Streamers to the Chemical Composition of the Mesosphere‐Lower Thermosphere

Terrestrial gamma-ray flashes as the high-energy effect of tropospheric thunderstorms in near-Earth space

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