[{"data":1,"prerenderedAt":274},["ShallowReactive",2],{"dataset-tables-arase":3,"mission-arase":6},{"ja":4,"en":5},"| 観測装置\u002Fデータ                                                                                                                                            | ID                                                                                         | 概要                                                                                                                                      |\n|:-----------------------------------------------------------------------------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------------|:------------------------------------------------------------------------------------------------------------------------------------------|\n| Auxiliary                                                                                                                                                  | [erg-12000](..\u002F..\u002Fdatasets\u002Fdarts:erg-12000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) レベル2 軌道データ                                                                                    |\n| Auxiliary                                                                                                                                                  | [erg-orb-short-term-predicted-v01](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-short-term-predicted-v01\u002F) | ジオスペース探査衛星「あらせ」(ERG) 予測軌道データ：短期 バージョン01                                                                     |\n| Auxiliary                                                                                                                                                  | [erg-12001](..\u002F..\u002Fdatasets\u002Fdarts:erg-12001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) レベル3 軌道データ                                                                                    |\n| Auxiliary                                                                                                                                                  | [erg-orb-long-term-predicted](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-long-term-predicted\u002F)           | ジオスペース探査衛星「あらせ」(ERG) 予測軌道データ：長期                                                                                  |\n| Auxiliary                                                                                                                                                  | [erg-orb-mid-term-predicted](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-mid-term-predicted\u002F)             | ジオスペース探査衛星「あらせ」(ERG) 予測軌道データ：中期                                                                                  |\n| Auxiliary                                                                                                                                                  | [erg-orb-short-term-predicted-v02](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-short-term-predicted-v02\u002F) | ジオスペース探査衛星「あらせ」(ERG) 予測軌道データ：短期 バージョン02                                                                     |\n| Extremely High-Energy Electron Experiment (XEP)                                                                                                            | [erg-00000](..\u002F..\u002Fdatasets\u002Fdarts:erg-00000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 超高エネルギー電子分析器(XEP) レベル2 2次元フラックスデータ                                           |\n| Extremely High-Energy Electron Experiment (XEP)                                                                                                            | [erg-00001](..\u002F..\u002Fdatasets\u002Fdarts:erg-00001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 超高エネルギー電子分析器(XEP) レベル2 全方向フラックスデータ                                          |\n| High-Energy Electron Experiments (HEP)                                                                                                                     | [erg-01001](..\u002F..\u002Fdatasets\u002Fdarts:erg-01001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 高エネルギー電子分析器(HEP) レベル2 全方向フラックスデータ                                            |\n| High-Energy Electron Experiments (HEP)                                                                                                                     | [erg-01000](..\u002F..\u002Fdatasets\u002Fdarts:erg-01000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 高エネルギー電子分析器(HEP) レベル2 3次元フラックスデータ                                             |\n| High-Energy Electron Experiments (HEP)                                                                                                                     | [erg-01002](..\u002F..\u002Fdatasets\u002Fdarts:erg-01002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 高エネルギー電子分析器(HEP) レベル3 ピッチ角別電子フラックスデータ                                    |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e)                                                                                                | [erg-04001](..\u002F..\u002Fdatasets\u002Fdarts:erg-04001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギー電子分析器(LEP-e) レベル2 3次元フラックスデータ                                           |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e)                                                                                                | [erg-04002](..\u002F..\u002Fdatasets\u002Fdarts:erg-04002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギー電子分析器(LEP-e) レベル2 全方向フラックスデータ                                          |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e)                                                                                                | [erg-04004](..\u002F..\u002Fdatasets\u002Fdarts:erg-04004\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギー電子分析器(LEP-e) 微細チャネルベース レベル2 3次元フラックスデータ                        |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e), Magnetic Field Experiment (MGF)                                                               | [erg-04005](..\u002F..\u002Fdatasets\u002Fdarts:erg-04005\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギー電子分析器(LEP-e) レベル3 微細チャネル電子フラックス ピッチ角分布データ                   |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e), Magnetic Field Experiment (MGF)                                                               | [erg-04003](..\u002F..\u002Fdatasets\u002Fdarts:erg-04003\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギー電子分析器(LEP-e) レベル3 ピッチ角分布電子フラックスデータ                                |\n| Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i)                                                                                                | [erg-05001](..\u002F..\u002Fdatasets\u002Fdarts:erg-05001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギーイオン質量分析器(LEP-i) レベル2 全方向フラックスデータ                                    |\n| Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i)                                                                                                | [erg-05000](..\u002F..\u002Fdatasets\u002Fdarts:erg-05000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギーイオン質量分析器(LEP-i) レベル2 3次元フラックスデータ                                     |\n| Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i), Magnetic Field Experiment (MGF)                                                               | [erg-05002](..\u002F..\u002Fdatasets\u002Fdarts:erg-05002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 低エネルギーイオン質量分析器(LEP-i) レベル3 PADフラックスデータ                                       |\n| Magnetic Field Experiment (MGF)                                                                                                                            | [erg-06000](..\u002F..\u002Fdatasets\u002Fdarts:erg-06000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 磁場観測器(MGF) レベル2 高分解能（64\u002F128\u002F256 Hz）磁場データ                                           |\n| Magnetic Field Experiment (MGF)                                                                                                                            | [erg-06001](..\u002F..\u002Fdatasets\u002Fdarts:erg-06001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 磁場観測器(MGF) レベル2 スピン平均磁場データ                                                          |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e)                                                                                             | [erg-02000](..\u002F..\u002Fdatasets\u002Fdarts:erg-02000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギー電子分析器(MEP-e) レベル2 3次元フラックスデータ                                         |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e)                                                                                             | [erg-02001](..\u002F..\u002Fdatasets\u002Fdarts:erg-02001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギー電子分析器(MEP-e) レベル2 全方向フラックスデータ                                        |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e), Magnetic Field Experiment (MGF)                                                            | [erg-02003](..\u002F..\u002Fdatasets\u002Fdarts:erg-02003\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギー電子分析器(MEP-e) レベル3 ピッチ角別フラックスデータ                                    |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e), Magnetic Field Experiment (MGF)                                                            | [erg-02002](..\u002F..\u002Fdatasets\u002Fdarts:erg-02002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギー電子分析器(MEP-e) レベル3 3次元フラックスデータ                                         |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)                                                                                             | [erg-03002](..\u002F..\u002Fdatasets\u002Fdarts:erg-03002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギーイオン質量分析器(MEP-i) レベル2 TOFモードデータ                                         |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)                                                                                             | [erg-03001](..\u002F..\u002Fdatasets\u002Fdarts:erg-03001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギーイオン質量分析器(MEP-i) レベル2 全方向フラックスデータ                                  |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)                                                                                             | [erg-03000](..\u002F..\u002Fdatasets\u002Fdarts:erg-03000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギーイオン質量分析器(MEP-i) レベル2 3次元フラックスデータ                                   |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i), Magnetic Field Experiment (MGF)                                                            | [erg-03003](..\u002F..\u002Fdatasets\u002Fdarts:erg-03003\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギーイオン質量分析器(MEP-i) レベル3 3次元フラックスデータ                                   |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i), Magnetic Field Experiment (MGF)                                                            | [erg-03004](..\u002F..\u002Fdatasets\u002Fdarts:erg-03004\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) 中間エネルギーイオン質量分析器(MEP-i) レベル3 ピッチ角別フラックスデータ                              |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07000](..\u002F..\u002Fdatasets\u002Fdarts:erg-07000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F電場観測器(EFD) レベル2 スピンフィット電場データ                        |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07001](..\u002F..\u002Fdatasets\u002Fdarts:erg-07001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F電場観測器(EFD) レベル2 スピン平均ポテンシャルデータ                    |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07002](..\u002F..\u002Fdatasets\u002Fdarts:erg-07002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F電場観測器(EFD) レベル2 ポテンシャル波形データ                          |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07003](..\u002F..\u002Fdatasets\u002Fdarts:erg-07003\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F電場観測器(EFD) レベル2 電場波形データ                                  |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07004](..\u002F..\u002Fdatasets\u002Fdarts:erg-07004\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F電場観測器(EFD) レベル2 電場スペクトルデータ                            |\n| Plasma Wave Experiment (PWE)\u002FHigh Frequency Analyzer (HFA)                                                                                                 | [erg-10000](..\u002F..\u002Fdatasets\u002Fdarts:erg-10000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F高周波アナライザ(HFA) レベル2 スペクトルデータ                          |\n| Plasma Wave Experiment (PWE)\u002FHigh Frequency Analyzer (HFA), Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA), Magnetic Field Experiment (MGF) | [erg-10001](..\u002F..\u002Fdatasets\u002Fdarts:erg-10001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F高周波アナライザ(HFA) レベル2 スペクトルデータ                          |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA)                                                                                              | [erg-08002](..\u002F..\u002Fdatasets\u002Fdarts:erg-08002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)搭載周波数アナライザ(OFA) レベル2 複素スペクトルデータ                   |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA)                                                                                              | [erg-08000](..\u002F..\u002Fdatasets\u002Fdarts:erg-08000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)搭載周波数アナライザ(OFA) レベル2 パワースペクトルデータ                 |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA)                                                                                              | [erg-08001](..\u002F..\u002Fdatasets\u002Fdarts:erg-08001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)搭載周波数アナライザ(OFA) レベル2 スペクトル行列データ                   |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA), Magnetic Field Experiment (MGF)                                                             | [erg-08003](..\u002F..\u002Fdatasets\u002Fdarts:erg-08003\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE) 搭載周波数アナライザ(OFA) レベル3 波動特性データ                        |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09001](..\u002F..\u002Fdatasets\u002Fdarts:erg-09001\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) レベル2 磁場波形データ                              |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09004](..\u002F..\u002Fdatasets\u002Fdarts:erg-09004\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) モノポールモード運用時 レベル2 電場波形データ       |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09003](..\u002F..\u002Fdatasets\u002Fdarts:erg-09003\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) レベル2 磁場スペクトルデータ                        |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09002](..\u002F..\u002Fdatasets\u002Fdarts:erg-09002\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) レベル2 電場スペクトルデータ                        |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09000](..\u002F..\u002Fdatasets\u002Fdarts:erg-09000\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) レベル2 電場波形データ                              |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09005](..\u002F..\u002Fdatasets\u002Fdarts:erg-09005\u002F)                                               | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) モノポールモード運用時 レベル2 電場スペクトルデータ |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-pwe-wfc-ancillary](..\u002F..\u002Fdatasets\u002Fdarts:erg-pwe-wfc-ancillary\u002F)                       | ジオスペース探査衛星「あらせ」(ERG) プラズマ波動・電場観測器(PWE)\u002F波形キャプチャ(WFC) 補助データ                                          |","| Instruments\u002FData                                                                                                                                           | ID                                                                                         | Summary                                                                                                                                                                                                                                   |\n|:-----------------------------------------------------------------------------------------------------------------------------------------------------------|:-------------------------------------------------------------------------------------------|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| Auxiliary                                                                                                                                                  | [erg-12000](..\u002F..\u002Fdatasets\u002Fdarts:erg-12000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Orbit Level-2 data                                                                                                                                                            |\n| Auxiliary                                                                                                                                                  | [erg-orb-short-term-predicted-v01](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-short-term-predicted-v01\u002F) | Exploration of energization and Radiation in Geospace (ERG) Predicted Orbit data : Short-term v01                                                                                                                                         |\n| Auxiliary                                                                                                                                                  | [erg-12001](..\u002F..\u002Fdatasets\u002Fdarts:erg-12001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Orbit Level-3 data                                                                                                                                                            |\n| Auxiliary                                                                                                                                                  | [erg-orb-long-term-predicted](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-long-term-predicted\u002F)           | Exploration of energization and Radiation in Geospace (ERG) Predicted Orbit data : Long-term                                                                                                                                              |\n| Auxiliary                                                                                                                                                  | [erg-orb-mid-term-predicted](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-mid-term-predicted\u002F)             | Exploration of energization and Radiation in Geospace (ERG) Predicted Orbit data : Mid-term                                                                                                                                               |\n| Auxiliary                                                                                                                                                  | [erg-orb-short-term-predicted-v02](..\u002F..\u002Fdatasets\u002Fdarts:erg-orb-short-term-predicted-v02\u002F) | Exploration of energization and Radiation in Geospace (ERG) Predicted Orbit data : Short-term v02                                                                                                                                         |\n| Extremely High-Energy Electron Experiment (XEP)                                                                                                            | [erg-00000](..\u002F..\u002Fdatasets\u002Fdarts:erg-00000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Extremely High-Energy Electron Experiment (XEP) Level-2 2-D flux data                                                                                                         |\n| Extremely High-Energy Electron Experiment (XEP)                                                                                                            | [erg-00001](..\u002F..\u002Fdatasets\u002Fdarts:erg-00001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Extremely High-Energy Electron Experiment (XEP) Level-2 omniflux data                                                                                                         |\n| High-Energy Electron Experiments (HEP)                                                                                                                     | [erg-01001](..\u002F..\u002Fdatasets\u002Fdarts:erg-01001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) HEP Level-2 omni-directional flux data                                                                                                                                        |\n| High-Energy Electron Experiments (HEP)                                                                                                                     | [erg-01000](..\u002F..\u002Fdatasets\u002Fdarts:erg-01000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) HEP Level-2 3-D flux data                                                                                                                                                     |\n| High-Energy Electron Experiments (HEP)                                                                                                                     | [erg-01002](..\u002F..\u002Fdatasets\u002Fdarts:erg-01002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) HEP Level-3 pitch angle sorted electron flux data                                                                                                                             |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e)                                                                                                | [erg-04001](..\u002F..\u002Fdatasets\u002Fdarts:erg-04001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPe Level-2 3-D flux data                                                                                                                                                    |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e)                                                                                                | [erg-04002](..\u002F..\u002Fdatasets\u002Fdarts:erg-04002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPe Level-2 omni-directional flux data                                                                                                                                       |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e)                                                                                                | [erg-04004](..\u002F..\u002Fdatasets\u002Fdarts:erg-04004\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPe Level-2 3-D flux data based on fine channels                                                                                                                             |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e), Magnetic Field Experiment (MGF)                                                               | [erg-04005](..\u002F..\u002Fdatasets\u002Fdarts:erg-04005\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPe Level-3 pitch angle distribution data of electron flux based on fine channels                                                                                            |\n| Low-Energy Particle Experiments - Electron Analyzer (LEP-e), Magnetic Field Experiment (MGF)                                                               | [erg-04003](..\u002F..\u002Fdatasets\u002Fdarts:erg-04003\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPe Level-3 pitch angle distribution electron flux data                                                                                                                      |\n| Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i)                                                                                                | [erg-05001](..\u002F..\u002Fdatasets\u002Fdarts:erg-05001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPi Level-2 omniflux data                                                                                                                                                    |\n| Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i)                                                                                                | [erg-05000](..\u002F..\u002Fdatasets\u002Fdarts:erg-05000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPi Level-2 3-D flux data                                                                                                                                                    |\n| Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i), Magnetic Field Experiment (MGF)                                                               | [erg-05002](..\u002F..\u002Fdatasets\u002Fdarts:erg-05002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) LEPi Level-3 PAD flux data                                                                                                                                                    |\n| Magnetic Field Experiment (MGF)                                                                                                                            | [erg-06000](..\u002F..\u002Fdatasets\u002Fdarts:erg-06000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Magnetic Field Experiment (MGF) Level-2 high-resolution (64\u002F128\u002F256 Hz) magnetic field data                                                                                   |\n| Magnetic Field Experiment (MGF)                                                                                                                            | [erg-06001](..\u002F..\u002Fdatasets\u002Fdarts:erg-06001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Magnetic Field Experiment (MGF) Level-2 spin-averaged magnetic field data                                                                                                     |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e)                                                                                             | [erg-02000](..\u002F..\u002Fdatasets\u002Fdarts:erg-02000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-e Level-2 3-D flux data                                                                                                                                                   |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e)                                                                                             | [erg-02001](..\u002F..\u002Fdatasets\u002Fdarts:erg-02001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-e Level-2 omniflux data                                                                                                                                                   |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e), Magnetic Field Experiment (MGF)                                                            | [erg-02003](..\u002F..\u002Fdatasets\u002Fdarts:erg-02003\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-e Level-3 pitch-angle sorted flux data                                                                                                                                    |\n| Medium-Energy Particle Experiments - Electron Analyzer (MEP-e), Magnetic Field Experiment (MGF)                                                            | [erg-02002](..\u002F..\u002Fdatasets\u002Fdarts:erg-02002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-e Level-3 3-D flux data                                                                                                                                                   |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)                                                                                             | [erg-03002](..\u002F..\u002Fdatasets\u002Fdarts:erg-03002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-i Level-2 TOF mode data                                                                                                                                                   |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)                                                                                             | [erg-03001](..\u002F..\u002Fdatasets\u002Fdarts:erg-03001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-i Level-2 omni-directional flux data                                                                                                                                      |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)                                                                                             | [erg-03000](..\u002F..\u002Fdatasets\u002Fdarts:erg-03000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-i Level-2 3-D flux data                                                                                                                                                   |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i), Magnetic Field Experiment (MGF)                                                            | [erg-03003](..\u002F..\u002Fdatasets\u002Fdarts:erg-03003\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-i Level-3 3-D flux data                                                                                                                                                   |\n| Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i), Magnetic Field Experiment (MGF)                                                            | [erg-03004](..\u002F..\u002Fdatasets\u002Fdarts:erg-03004\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) MEP-i Level-3 pitch-angle sorted flux data                                                                                                                                    |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07000](..\u002F..\u002Fdatasets\u002Fdarts:erg-07000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Electric Field Detector (EFD) Level-2 spin-fit electric field data                                                                               |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07001](..\u002F..\u002Fdatasets\u002Fdarts:erg-07001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Electric Field Detector (EFD) Level-2 spin-averaged potential data                                                                               |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07002](..\u002F..\u002Fdatasets\u002Fdarts:erg-07002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Electric Field Detector (EFD) Level-2 potential waveform data                                                                                    |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07003](..\u002F..\u002Fdatasets\u002Fdarts:erg-07003\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Electric Field Detector (EFD) Level-2 electric field waveform data                                                                               |\n| Plasma Wave Experiment (PWE)\u002FElectric Field Detector (EFD)                                                                                                 | [erg-07004](..\u002F..\u002Fdatasets\u002Fdarts:erg-07004\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Electric Field Detector (EFD) Level-2 electric field spectrum data                                                                               |\n| Plasma Wave Experiment (PWE)\u002FHigh Frequency Analyzer (HFA)                                                                                                 | [erg-10000](..\u002F..\u002Fdatasets\u002Fdarts:erg-10000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) High Frequency Analyzer (HFA) Level-2 spectrum data                                                                                              |\n| Plasma Wave Experiment (PWE)\u002FHigh Frequency Analyzer (HFA), Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA), Magnetic Field Experiment (MGF) | [erg-10001](..\u002F..\u002Fdatasets\u002Fdarts:erg-10001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) High Frequency Analyzer (HFA) Level-2 spectrum data                                                                                              |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA)                                                                                              | [erg-08002](..\u002F..\u002Fdatasets\u002Fdarts:erg-08002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Onboard Frequency Analyzer (OFA) Level-2 complex spectrum data                                                                                   |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA)                                                                                              | [erg-08000](..\u002F..\u002Fdatasets\u002Fdarts:erg-08000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Onboard Frequency Analyzer (OFA) Level-2 power spectrum data                                                                                     |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA)                                                                                              | [erg-08001](..\u002F..\u002Fdatasets\u002Fdarts:erg-08001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Onboard Frequency Analyzer (OFA) Level-2 spectral matrix data                                                                                    |\n| Plasma Wave Experiment (PWE)\u002FOnboard Frequency Analyzer (OFA), Magnetic Field Experiment (MGF)                                                             | [erg-08003](..\u002F..\u002Fdatasets\u002Fdarts:erg-08003\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Onboard Frequency Analyzer (OFA) Level-3 wave property data                                                                                      |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09001](..\u002F..\u002Fdatasets\u002Fdarts:erg-09001\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Waveform Capture (WFC) Level-2 electric field waveform data                                                                                      |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09004](..\u002F..\u002Fdatasets\u002Fdarts:erg-09004\u002F)                                               | Level-2 electric field waveform data measured in the monopole-mode operation of the Plasma Wave Experiment (PWE) Waveform Capture (WFC) instrument aboard the Exploration of energization and Radiation in Geospace (ERG) Arase satellite |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09003](..\u002F..\u002Fdatasets\u002Fdarts:erg-09003\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Waveform Capture (WFC) Level-2 magnetic field spectrum data                                                                                      |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09002](..\u002F..\u002Fdatasets\u002Fdarts:erg-09002\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Waveform Capture (WFC) Level-2 electric field spectrum data                                                                                      |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09000](..\u002F..\u002Fdatasets\u002Fdarts:erg-09000\u002F)                                               | Exploration of energization and Radiation in Geospace (ERG) Plasma Wave Experiment (PWE) Waveform Capture (WFC) Level-2 electric field waveform data                                                                                      |\n| Plasma Wave Experiment (PWE)\u002FWaveform Capture (WFC)                                                                                                        | [erg-09005](..\u002F..\u002Fdatasets\u002Fdarts:erg-09005\u002F)                                               | Level-2 electric field spectrum data measured in the monopole-mode operation of the Plasma Wave Experiment (PWE) Waveform Capture (WFC) instrument aboard the Exploration of energization and 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(2017) Earth, Planets and Space - Medium-energy particle experiments–ion mass analyzer (MEP-i) onboard ERG (Arase)",{"@type":174,"keywords":180,"inLanguage":176,"url":218,"description":219},"https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Fspec\u002Fhep.shtml.en","Arase Instruments : High-Energy Electron Experiments, HEP",{"@type":174,"keywords":184,"inLanguage":176,"url":221,"description":222},"https:\u002F\u002Fdoi.org\u002F10.1186\u002Fs40623-018-0853-1","Mitani, T. et al. (2018) Earth, Planets and Space - High-energy electron experiments (HEP) aboard the ERG (Arase) satellite",{"@type":174,"keywords":180,"inLanguage":176,"url":224,"description":225},"https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Fspec\u002Fxep.shtml.en","Arase Instruments : Extremely High-Energy Electron Experiment, XEP",{"@type":174,"keywords":184,"inLanguage":176,"url":227,"description":228},"https:\u002F\u002Fdoi.org\u002F10.1186\u002Fs40623-018-0901-x","Higashio, N. et al. (2018) Earth, Planets and Space - The extremely high-energy electron experiment (XEP) onboard the Arase (ERG) satellite",{"@type":174,"keywords":180,"inLanguage":176,"url":224,"description":230},"Arase Instruments : Magnetic Field Experiment, MGF",{"@type":174,"keywords":184,"inLanguage":176,"url":232,"description":233},"https:\u002F\u002Fdoi.org\u002F10.1186\u002Fs40623-018-0800-1","Matsuoka, A. et al. (2018) Earth, Planets and Space - The ARASE (ERG) magnetic field investigation",{"@type":174,"keywords":180,"inLanguage":176,"url":235,"description":236},"https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Fspec\u002Fpwe.shtml.en","Arase Instruments : Plasma Wave Experiment, PWE",{"@type":174,"keywords":184,"inLanguage":176,"url":238,"description":239},"https:\u002F\u002Fdoi.org\u002F10.1186\u002Fs40623-018-0842-4","Kasahara, Y. et al. (2018) Earth, Planets and Space - The Plasma Wave Experiment (PWE) on board the Arase (ERG) satellite",{"@type":174,"keywords":180,"inLanguage":176,"url":241,"description":242},"https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Fspec\u002Fswpia.shtml.en","Arase Instruments : Software-Type Wave Particle Interaction Analyzer, S-WPIA",{"@type":174,"keywords":184,"inLanguage":176,"url":244,"description":245},"https:\u002F\u002Fdoi.org\u002F10.1186\u002Fs40623-017-0771-7","Katoh, Y. et al. (2018) Earth, Planets and Space - Software-type Wave–Particle Interaction Analyzer on board the Arase satellite",{"@type":174,"keywords":184,"inLanguage":176,"url":247,"description":248},"https:\u002F\u002Fdoi.org\u002F10.1186\u002Fs40623-018-0856-y","Hikishima, M. et al. (2018) Earth, Planets and Space - Data processing in Software-type Wave–Particle Interaction Analyzer onboard the Arase satellite",{"@type":174,"keywords":250,"inLanguage":176,"url":251,"description":252},"AnalysisDescription","https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Fdata_info\u002Fhowto.shtml.en","Arase Tools for data analysis",{"@type":174,"keywords":254,"inLanguage":176,"url":255,"description":256},"PublicationList","https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Fresult\u002Foutput_paper.en.php","ERG-Related Papers",{"@type":174,"keywords":258,"inLanguage":176,"url":259,"description":260},"MiscellaneousLink","https:\u002F\u002Fergsc.isee.nagoya-u.ac.jp\u002Findex.shtml.en","the ERG Science Center",{"@type":174,"keywords":258,"inLanguage":176,"url":262,"description":263},"https:\u002F\u002Fwww.isas.jaxa.jp\u002Fen\u002Fmissions\u002Fspacecraft\u002Fcurrent\u002Ferg.html","General information on Arase (ERG) by ISAS\u002FIAXA",{"@type":174,"keywords":258,"inLanguage":176,"url":265,"description":266},"https:\u002F\u002Fglobal.jaxa.jp\u002Fprojects\u002Fsas\u002Ferg\u002F","General information on Arase (ERG) at JAXA",[268,272],{"@value":269,"@language":270,"encodingFormat":271},"## 概要\n\n「あらせ」(ERG) は、JAXA宇宙科学研究所 (ISAS) によって開発された地球周回衛星です。2016年12月20日に、鹿児島県内之浦宇宙空間観測所 (USC) からイプシロンロケットによって打ち上げられました。このミッションの主目的は、地球の放射線帯  (ヴァン・アレン帯) における相対論的電子の加速および損失メカニズムを、宇宙嵐のような地磁気擾乱時に解明することです。特に、内側磁気圏でのプラズマ、粒子および電磁場の包括的な現地測定を行うことが重要です。\n「あらせ」は 19 eV から 20 MeV の連続電子エネルギースペクトル、ならびにDCから 20 kHz までの連続電磁波形を測定します。\n\n衛星の重量は約 350 kg で、近地点高度 460 km、遠地点高度約 32,000 km、傾斜角31 度の楕円軌道を、周期は約 570 分で周回しています。スピン安定方式の姿勢制御法を採用しており、スピン軸は太陽に向かって 15度 (4-20度の範囲) の方向、スピン周期は約8秒です。\n\n## 観測装置について\n\n### Low-Energy Particle Experiments - Electron Analyzer (LEP-e)\nLEP-e は低エネルギー電子の三次元分布関数観測を行う装置です。計測器は静電分析器、マルチチャネルプレート (MCP)、高電圧電源および電源部からなり、静電分析により ~19 eV から ~19 keV の電子を、32 のエネルギーステップで計測します。扇形をした視野で、衛星のスピン運動により16方向のスピン位相方向でそれぞれ計測を行うことで、三次元観測を可能とします。このエネルギー範囲の電子は内部磁気圏で支配的であり、このような電子の測定は磁気圏ダイナミクスや波動粒子相互作用を理解する上で重要です。\n\n### Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i)\nLEP-i は、\u003C0.01 から 25 keV\u002Fq までの低エネルギー範囲をカバーするイオンエネルギー質量分析計です。入ってくるイオンの種類は、電荷あたりの静電エネルギー分析とTime Of Flight法の組み合わせによって識別されます。このセンサーは平面視野を備えており、衛星の回転運動を利用して 4π ステラジアンをカバーします。\n\n### Medium-Energy Particle Experiments - Electron Analyzer (MEP-e)\nMEP-e は、7～87 keV の中間エネルギー範囲で、入射する電子のエネルギーと飛来方向を測定する静電分析器です。センサーは16個の検出器で2πラジアンの円盤状の視野をカバーし、衛星のスピン運動によって全立体角のカバーが達成されます。電子エネルギーは静電アナライザーとアバランシェフォトダイオード (APD) によって独立に測定され、それらの検出波高を比較することで、大幅なバックグラウンド低減を可能にしています。\n\n### Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)\nMEP-i は、10-180 keV\u002Fqの中エネルギー領域におけるイオン質量分析装置です。入射イオンは静電分析器 (ESA) によりエネルギー電荷比 (E\u002Fq) および飛来方向を分析します。イオンの飛行時間 (TOF) により質量電荷比 (M\u002Fq) を同定し、シリコン固体検出器 (SSD) によってイオンのエネルギー (E) を計測し、電荷 (q) を求めます。\n\n### High-Energy Electron Experiments (HEP)\nHEP は、70 keV-2 MeVの高エネルギー電子を測定する装置です。ピンホールと固体検出器を用いたピンホールカメラであり、検出器としては片面シリコンストリップ半導体検出器を用いて、1次元の位置分解を行い、 入射口と検出器の位置で決まる視野角60度内を分解し、12度ごとのデータを生成します。MeV 電子まで計測するために、薄いシリコン半導体を積層して、各層でエネルギー計測を実施し、積算することにより、エネルギーを計測します。\n\n### Extremely High-Energy Electron Experiment (XEP)\nXEP は、0.4-20 MeV の極めて高いエネルギーの電子を観測します。5 枚の固体シリコン検出器　 (SSD) と 1 個のシンチレータ (GSO+PMT) で構成されており、側面からのコンタミネーションを除去するため、GSO シンチレータを取り囲むプラスチックシンチレータが装備されています。エネルギー計測範囲の低エネルギー部は SSD にてエネルギー検出を行い、高エネルギー部は GSO を併用して検出します。\n\n### Plasma Wave Experiment (PWE)\nPWE は、DCから20 kHzまでの範囲のプラズマ波動を測定する装置です。\n直交電界センサ (WPT：ワイヤープローブアンテナ) 、3軸磁気センサ (MSC：磁気サーチコイル) 、および電界検出器 (EFD) 、波形捕捉・オンボード周波数分析器 (WFC\u002FOFA) 、高周波分析器 (HFA) という受信機で構成され、内部磁気圏の直流電界とプラズマ波動を測定するために開発されました。これらのセンサーと受信機を用いて、PWEは電場では DC から10 MHzまで、磁場では数 Hzから 100 kHzまでの広い周波数範囲をカバーします。毎日24時間、ELF\u002FVLF\u002FHFレンジの連続波スペクトルとELFレンジ波形を生成します。また、波の方向探知用の連続データとしてスペクトル行列を作成します。さらに、\"コーラスバースト\" と \"EMICバースト\" の2種類の波形バーストデータを断続的に作成しています。また、波と粒子の直接的な相関を導出する Software-Type Wave-Particle Interaction Analyzer (S-WPIA) に生波形データを入力します。\n\n### Software-Type Wave-Particle Interaction Analyzer (S-WPIA)\nS-WPIA は、波動と粒子の相互作用をソフトウェアベースでリアルタイムに解析するシステムです。これにより、波動と粒子のエネルギー交換に関する詳細なデータを取得します。\n\n### Magnetic Field Experiment (MGF)\nMGF は、内部磁気圏における粒子加速過程を検証するために設計されました。磁場の強さと方向の正確な測定は、粒子の運動、粒子と相互作用する波の特性、電流によって引き起こされる磁場変動の研究に不可欠です。時間的な磁場変動を観測することで、相対論的な電子やリングカレント粒子の生成や損失を引き起こす超低周波領域における磁気流体力学や電磁イオンサイクロトロン波をより深く理解することができます。磁場実験 (MGF) のハードウェアとソフトウェアの設計は、これらの現象を研究するための要件を満たすように最適化されました。\nMGF は、256ベクトル\u002F秒のサンプリングレートで測定を行い、データはテレメトリのバジェットに合わせてオンボードで平均化される。磁力計は、ローカル磁場強度に応じて、ダイナミックレンジを ±8000 から ±60,000 nT の間で切り替えます。装置はプリフライトテストと軌道上データの分析によって校正されます。\nMGF は、地磁気の変動を観測し、放射線帯の環境変動に関するデータを提供します。\n\n## 成果\n「あらせ」は、地球の放射線帯における相対論的電子の加速および損失メカニズムの解明に重要なデータを提供しています。このデータを基に、宇宙嵐時の地磁気環境の変動や放射線帯の動態に関する研究が進んでいます。今後もさらに詳細な観測データの収集が期待されています。\n","ja","text\u002Fmarkdown",{"@value":273,"@language":176,"encodingFormat":271},"## Overview\n\"Arase\" (ERG) is an Earth-orbiting satellite developed by JAXA's Institute of Space and Astronautical Science (ISAS). It was launched on December 20, 2016, from the Uchinoura Space Center (USC) in Kagoshima Prefecture by an Epsilon rocket. The primary objective of this mission is to elucidate the acceleration and loss mechanisms of relativistic electrons in the Earth's radiation belts (Van Allen belts) during geomagnetic disturbances like space storms. Particularly, it is crucial to conduct in-situ measurements of plasma, particles, and electromagnetic fields in the inner magnetosphere. \"Arase\" measures a continuous electron energy spectrum from 19 eV to 20 MeV, as well as a continuous electromagnetic waveform from DC to 20 kHz.\n\nThe satellite weighs approximately 350 kg, orbiting in an elliptical orbit with a periapsis of 460 km, an apoapsis of about 32,000 km, and an inclination of 31 degrees, with an orbital period of about 570 minutes. It employs a spin-stabilized attitude control method, with the spin axis directed 15 degrees (within the range of 4-20 degrees) towards the sun, and a spin period of approximately 8 seconds.\n\n## Observation Instruments\n\n### Low-Energy Particle Experiments - Electron Analyzer (LEP-e)\nLEP-e is an instrument for observing the three-dimensional distribution function of low-energy electrons. The apparatus consists of an electrostatic analyzer, a multichannel plate (MCP), a high-voltage power supply, and a power unit, measuring electrons from ~19 eV to ~19 keV in 32 energy steps through electrostatic analysis. It enables three-dimensional observation by measuring in 16 spin phase directions using the satellite's spin motion with a fan-shaped field of view. Electrons in this energy range dominate the inner magnetosphere, and measuring such electrons is essential for understanding magnetosphere dynamics and wave-particle interactions.\n\n### Low-Energy Particle Experiments - Ion Mass Analyzer (LEP-i)\nLEP-i is an ion energy mass spectrometer covering the low energy range from \u003C0.01 to 25 keV\u002Fq. The types of incoming ions are identified by a combination of electrostatic energy analysis per charge and time-of-flight techniques. This sensor has a planar field of view and covers 4π steradians using the satellite's rotation motion.\n\n### Medium-Energy Particle Experiments - Electron Analyzer (MEP-e)\nMEP-e is an electrostatic analyzer measuring the energy and arrival direction of incoming electrons in the medium energy range of 7-87 keV. The sensor covers a disk-shaped field of view of 2π radians with 16 detectors, achieving full solid angle coverage through the satellite's spin motion. Electron energy is independently measured by an electrostatic analyzer and avalanche photodiode (APD), allowing significant background reduction by comparing detection pulse heights.\n\n### Medium-Energy Particle Experiments - Ion Mass Analyzer (MEP-i)\nMEP-i is an ion mass analyzer in the medium energy range of 10-180 keV\u002Fq. Incoming ions are analyzed for energy-to-charge ratio (E\u002Fq) and arrival direction by an electrostatic analyzer (ESA). The mass-to-charge ratio (M\u002Fq) is identified by the ion's time of flight (TOF), and the ion's energy (E) is measured by a silicon solid-state detector (SSD) to determine the charge (q).\n\n### High-Energy Electron Experiments (HEP)\nHEP is an instrument for measuring high-energy electrons in the range of 7o keV-2 MeV. It uses a pinhole camera with a solid-state detector, employing a single-sided silicon strip semiconductor detector for one-dimensional position resolution. It resolves within a 60-degree field of view determined by the positions of the entrance and the detector, generating data every 12 degrees. To measure up to MeV electrons, thin silicon semiconductors are stacked, and energy is measured by summing the measurements of each layer.\n\n### Extremely High-Energy Electron Experiments (XEP)\nXEP observes extremely high-energy electrons in the range of 0.4-20 MeV. It consists of five solid-state silicon detectors (SSD) and one scintillator (GSO+PMT), with a plastic scintillator surrounding the GSO scintillator to eliminate contamination from the sides. The low-energy range of the energy measurement is detected by the SSD, while the high-energy range is detected using the GSO.\n\n### Plasma Wave Experiment (PWE)\nPWE is an instrument for measuring plasma waves in the range from DC to 20 kHz. It comprises orthogonal electric field sensors (WPT: wire probe antennas), a three-axis magnetic sensor (MSC: magnetic search coils), an electric field detector (EFD), a waveform capture and onboard frequency analyzer (WFC\u002FOFA), and a high-frequency analyzer (HFA). These sensors and receivers are designed to measure DC electric fields and plasma waves in the inner magnetosphere. Using these sensors and receivers, PWE covers a wide frequency range from DC to 10 MHz for electric fields and from a few Hz to 100 kHz for magnetic fields. It generates continuous wave spectra in the ELF\u002FVLF\u002FHF ranges and ELF range waveforms 24 hours a day. Additionally, it creates spectral matrices as continuous data for wave direction finding and two types of burst data—“chorus burst” and “EMIC burst”—intermittently. The live waveform data are also input into the Software-Type Wave-Particle Interaction Analyzer (S-WPIA) to derive the direct correlation between waves and particles.\n\n### Software-Type Wave-Particle Interaction Analyzer (S-WPIA)\nS-WPIA is a system that analyzes wave-particle interactions in real-time based on software. This allows for detailed data acquisition regarding the energy exchange between waves and particles.\n\n### Magnetic Field Experiment (MGF)\nMGF is designed to verify the particle acceleration processes in the inner magnetosphere. Accurate measurements of the strength and direction of magnetic fields are essential for studying particle motion, the characteristics of waves interacting with particles, and magnetic field variations caused by currents. Observing temporal magnetic field variations provides deeper insights into magnetohydrodynamic and electromagnetic ion cyclotron waves in the ultra-low frequency range that cause the generation and loss of relativistic electrons and ring current particles. The hardware and software design of the magnetic field experiment (MGF) has been optimized to meet the requirements for studying these phenomena.\nMGF measures at a sampling rate of 256 vectors per second, with data averaged onboard to fit the telemetry budget. The magnetometer switches its dynamic range between ±8000 and ±60,000 nT depending on the local magnetic field strength. The experiment is calibrated through pre-flight tests and on-orbit data analysis.\nMGF observes geomagnetic variations and provides data on the environmental variations in the radiation belt.\n\n## Achievements\n\"Arase\" provides crucial data for elucidating the acceleration and loss mechanisms of relativistic electrons in the Earth's radiation belts. Based on this data, research on geomagnetic environmental variations and radiation belt dynamics during space storms is progressing. Further collection of detailed observation data is expected in the future.",1792033394207]