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Spacecraft charging hazards in low-Earth orbit
https://jaxa.repo.nii.ac.jp/records/6409
https://jaxa.repo.nii.ac.jp/records/6409b619dda1-f32e-4a3f-9f2a-d45948d56f29
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
49206094.pdf (4.5 MB)
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| Item type | 会議発表論文 / Conference Paper(1) | |||||||
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| 公開日 | 2015-03-26 | |||||||
| タイトル | ||||||||
| タイトル | Spacecraft charging hazards in low-Earth orbit | |||||||
| 言語 | en | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 航空宇宙環境 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 宇宙機帯電 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 低高度地球周回軌道 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 地球電離層 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | オーロラアーク | |||||||
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| 主題Scheme | Other | |||||||
| 主題 | 電子降下 | |||||||
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| 主題Scheme | Other | |||||||
| 主題 | 太陽活動 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 太陽活動極大期 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 宇宙プラズマ | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | オーロラ分光 | |||||||
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| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | aerospace environment | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | spacecraft charging | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | low Earth orbit | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | Earth ionosphere | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | auroral arc | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | electron precipitation | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | solar activity | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | solar maximum | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | space plasma | |||||||
| キーワード | ||||||||
| 言語 | en | |||||||
| 主題Scheme | Other | |||||||
| 主題 | auroral spectroscopy | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_5794 | |||||||
| 資源タイプ | conference paper | |||||||
| 著者 |
Anderson, Phillip C.
× Anderson, Phillip C.
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| 著者所属 | ||||||||
| University of Texas at Dallas W. B. Hanson Center for Space Sciences | ||||||||
| 著者所属（英） | ||||||||
| en | ||||||||
| University of Texas at Dallas W. B. Hanson Center for Space Sciences | ||||||||
| 出版者 | ||||||||
| 出版者 | 宇宙航空研究開発機構 | |||||||
| 出版者（英） | ||||||||
| 出版者 | Japan Aerospace Exploration Agency (JAXA) | |||||||
| 書誌情報 |
宇宙航空研究開発機構特別資料 en : JAXA Special Publication: 9th Spacecraft Charging Technology Conference 巻 JAXA-SP-05-001E, p. 813-825, 発行日 2005-08-01 |
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| 抄録（英） | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | The space environment in Low-Earth orbit (LEO) has until recently been considered relatively benign to high levels of spacecraft charging. However, it has been found that the DMSP spacecraft at 840 km can charge to very large negative voltages (up to - 2,000 V) when encountering intense precipitating electron events (auroral arcs) while traversing the auroral zone. The occurrence frequency of charging events, defined as when the spacecraft charged to levels exceeding 100 V negative, was highly correlated with the 11-year solar cycle with the largest number of events occurring during solar minimum. This was due to the requirement that the background thermal plasma density be low, at most 10(exp 4)/sq cm. During solar maximum, the plasma density is typically well above that level due to the solar EUV ionizing radiation, and although the occurrence frequency of auroral arcs is considerably greater than at solar minimum, the occurrence of high-level charging is minimal. Indeed, of the over 1,600 events found during the most recent solar cycle, none occurred during the last solar maximum. A dependence of the magnitude of the spacecraft frame charge on density was observed with the largest negative voltages, approximately 2,000 V, only occurring at very low densities. A 'worst-case' charging electron spectrum for low-altitude was developed by applying a potential drop of 20 kV to source data that went into the MIL-STD-1809 specification for near-geosynchronous orbit and combining it with DMSP spectra consistent with a 20-kV drop. The results of this study have implications on a number of LEO satellite programs, including the International Space Station (ISS). The plasma density in the ISS orbit, at a much lower altitude than DMSP, is well above that at 840 km and rarely below 10(exp 4)/sq cm. However, in the wake of the ISS, the plasma density can be two orders of magnitude or more lower than the background density and thus conditions are ripe for significant charging effects. With an inclination of 51.6 degrees, the ISS does enter the auroral zone, particularly during geomagnetic storms and substorms when the auroral boundary can penetrate to very low latitudes. This has significant implications for EVA operations in the ISS wake. | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 1349-113X | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AA11984031 | |||||||
| 資料番号 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 資料番号: AA0049206094 | |||||||
| レポート番号 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | レポート番号: JAXA-SP-05-001E | |||||||
