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1989年3月の宇宙天気現象と人工衛星の軌道低下の関係
https://doi.org/10.20637/00048404
https://doi.org/10.20637/000484041b8999d7-6244-491f-b79f-d0fcc7662de4
名前 / ファイル | ライセンス | アクション |
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AA2130033005.pdf (1.1 MB)
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Item type | テクニカルレポート / Technical Report(1) | |||||
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公開日 | 2022-02-28 | |||||
タイトル | ||||||
タイトル | 1989年3月の宇宙天気現象と人工衛星の軌道低下の関係 | |||||
言語 | ||||||
言語 | jpn | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | solar flare | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | space weather | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | substorm | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | magnetic storm | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | satellite | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | orbit | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | TLE | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18gh | |||||
資源タイプ | technical report | |||||
ID登録 | ||||||
ID登録 | 10.20637/00048404 | |||||
ID登録タイプ | JaLC | |||||
その他のタイトル(英) | ||||||
その他のタイトル | Relationship between Space Weather Phenomenon in March 1989 and Satellite Orbit | |||||
著者 |
野澤, 恵
× 野澤, 恵× 玉置, 晋× 井上, 卓悠× NOZAWA, Satoshi× TAMAOKI, Susumu× INOUE, Takayuki |
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著者所属 | ||||||
茨城大学 | ||||||
著者所属 | ||||||
ABLab : 茨城大学 | ||||||
著者所属 | ||||||
エジソン | ||||||
著者所属(英) | ||||||
en | ||||||
Ibaraki University | ||||||
著者所属(英) | ||||||
en | ||||||
Aerospace Business Laboratory : Ibaraki University | ||||||
著者所属(英) | ||||||
en | ||||||
EDISON | ||||||
出版者 | ||||||
出版者 | 宇宙航空研究開発機構(JAXA) | |||||
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研究開発報告: 宇宙科学情報解析論文誌: 第11号 en : JAXA Research and Development Report: Journal of Space Science Informatics Japan: Volume 11 巻 JAXA-RR-21-008, p. 45-55, 発行日 2022-02-28 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | NORAD/NASA が提供するTLE を用いて、高度1100km 以下の低軌道、及び真円に近い軌道の宇宙物体について解析を行った。最初に50 年周回している二つの宇宙物体の軌道低下を解析した。その結果、太陽活動の指標となる相対黒点数と軌道低下には相関があり、極小となる前後三年間では3m/日以下の低下であったが、極大となる5 年間では、その10 倍となる30m/日程度の低下を示した。次に1989 年3月に発生した太陽フレア及びそれに伴う地球磁気圏の磁気嵐の宇宙天気現象とTLE から求めた軌道低下を統計的に調べた。現象前後の軌道低下は大気密度に比例した低下率であるが、現象前に比べ現象後では低下率が大きく、特に高度700 から1100km ではばらつきが大きい。この軌道低下は速度上昇を発生させ、ある例では一日に太陽の視直径の10 分の一のずれを起こし、数日で軌道保持範囲を逸脱してしまい、人工衛星運用として大きな問題となる。またTLE をもちいた軌道予測も可能なため、予測と実測から超高層大気の密度推定が可能なことを示唆している。 | |||||
抄録(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | The TLE(Two Line Element) is used to analyze space objects in low orbits below 1100 km altitude and in near circular orbits. There is a correlation between the two orbital declines and index of the relative sunspot number which is an indicator of solar activity. The declines were less than 1 km per year during the three years before and after the solar minimum, but were 10 times greater during the five years after the solar maximum. Next, we statistically examined the orbital declines calculated by TLEs from the space weather phenomena of the solar flare and associated magnetic storm in the Earth's magnetosphere that occurred in March 1989. The orbital degradation before and after the event was proportional to the atmospheric density, but the amount of decline after the event was larger than before the event, especially at altitudes of 700 to 1100 km, and the variation was large. This orbital decline causes an increase in velocity, and in some cases, a shift of one tenth of the Sun's visual diameter in a day, which causes a deviation from the orbit-holding range, which is a serious problem for satellite operations. In addition, orbit prediction using TLE is possible, suggesting that it is possible to estimate the density of the upper atmosphere from predictions and actual measurements. | |||||
内容記述 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 形態: カラー図版あり | |||||
内容記述(英) | ||||||
内容記述タイプ | Other | |||||
内容記述 | Physical characteristics: Original contains color illustrations | |||||
ISSNONLINE | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2433-2216 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
資料番号 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 資料番号: AA2130033005 | |||||
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-RR-21-008 |